{"id":6393,"date":"2024-09-10T10:29:46","date_gmt":"2024-09-10T10:29:46","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=6393"},"modified":"2026-10-16T09:38:38","modified_gmt":"2026-10-16T09:38:38","slug":"wordpress-404error","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/wordpress-404error\/","title":{"rendered":"WordPress\u306e404\u30a8\u30e9\u30fc\u539f\u56e0\u3068\u76f4\u3057\u65b9\uff5c\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u3082\u78ba\u8a8d"},"content":{"rendered":"\n<!-- withmedia-ketsuron -->\n<h2 class=\"wp-block-heading\">\u3053\u306e\u8a18\u4e8b\u306e\u7d50\u8ad6<\/h2>\n\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-01\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-01.webp\" alt=\"\u3053\u306e\u8a18\u4e8b\u306e\u7d50\u8ad6\" class=\"wp-image-26823\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-01.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-01-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-01-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u306e404\u30a8\u30e9\u30fc\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e0d\u5177\u5408\u3001URL\u306e\u5909\u66f4\u30fb\u524a\u9664\u3001\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\uff08.htaccess\u3084Nginx\u8a2d\u5b9a\uff09\u306e\u30df\u30b9\u304c\u4e3b\u306a\u539f\u56e0\u3067\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u300c\u8a2d\u5b9a\u300d\u2192\u300c\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u300d\u3092\u4e00\u5ea6\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3060\u3051\u3067\u89e3\u6d88\u3057\u307e\u3059\u3002\u89e3\u6d88\u3057\u306a\u3044\u5834\u5408\u306fRedirection\u3084404 to 301\u306a\u3069\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u8a2d\u5b9a\u3057\u3001SEO\u8a55\u4fa1\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u5bfe\u51e6\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.02.18.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30da\u30f3\u535a\u58eb\u3001\u52a9\u3051\u3066\u304f\u3060\u3055\u3044\uff01WordPress\u3067\u8a18\u4e8b\u3092\u6295\u7a3f\u3057\u305f\u306e\u306b\u3001\u30da\u30fc\u30b8\u3092\u958b\u3053\u3046\u3068\u3057\u305f\u3089\u201c404 Not Found\u201d\u3063\u3066\u51fa\u3066\u304f\u308b\u3093\u3067\u3059\u2026\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon 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class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.40.37.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3067\u3082\u3001\u3061\u3083\u3093\u3068\u6295\u7a3f\u3057\u305f\u3093\u3067\u3059\uff01<\/strong><br><strong>\u3069\u3046\u3057\u3066\u305d\u3093\u306a\u3053\u3068\u304c\u8d77\u304d\u308b\u3093\u3067\u3059\u304b\uff1f<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3075\u3080\u3075\u3080\u3002WordPress\u3067404\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u308b\u539f\u56e0\u306f\u3044\u304f\u3064\u304b\u3042\u308b\u3002<\/strong><br><strong>\u4eca\u304b\u3089\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304f\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.48.08.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u306f\u3044\uff01\u304a\u9858\u3044\u3057\u307e\u3059\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u30d6\u30ed\u30b0\u3092\u904b\u55b6\u3057\u3066\u3044\u308b\u3068\u3001404\u30a8\u30e9\u30fc\u304c\u7a81\u7136\u767a\u751f\u3057\u3001\u3069\u3046\u5bfe\u51e6\u3059\u308c\u3070\u826f\u3044\u306e\u304b\u5206\u304b\u3089\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u7279\u306bWordPress\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u3053\u306e\u30a8\u30e9\u30fc\u306f\u983b\u7e41\u306b\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u9069\u5207\u306a\u624b\u9806\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u3001\u7c21\u5358\u306b\u89e3\u6c7a\u3067\u304d\u308b\u3053\u3068\u3082\u591a\u3044\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001404\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u305d\u306e\u5bfe\u7b56\u6cd5\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3001SEO\u3078\u306e\u60aa\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_announce wp-block-paragraph\">\u300c\u5b66\u7fd2\u2192\u53ce\u5165\u300d\u306b\u3064\u306a\u3052\u305f\u53d7\u8b1b\u751f\u306e\u30ea\u30a2\u30eb\u306a\u4f53\u9a13\u8ac7\u3082\u516c\u958b\u4e2d\uff01<br>\u50cd\u304d\u65b9\u3092\u5909\u3048\u305f\u3044\u65b9\u306b\u3082\u97ff\u304f\u30b9\u30c8\u30fc\u30ea\u30fc\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_info wp-block-paragraph\"><strong>\u5409\u6c60\u3055\u3093<\/strong><br>\u3053\u308c\u307e\u3067\u306b\u3001IT\u696d\u754c\u3067\u4e3b\u306b\u30a4\u30f3\u30d5\u30e9\u95a2\u9023\u306e\u696d\u52d9\u3092\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001Web\u5236\u4f5c\u30fb\u958b\u767a\u306b\u8208\u5473\u3092\u6301\u3063\u305f\u3053\u3068\u304c\u304d\u3063\u304b\u3051\u3067\u3001WithCode\u306e\u53d7\u8b1b\u3092\u6c7a\u610f\u3057\u30014\u30f6\u6708\u9593\u306e\u5b66\u7fd2\u3092\u958b\u59cb\u3002\u5352\u696d\u5f8c\u306bWithCode\u304b\u3089\u306e\u5b9f\u6848\u4ef6\u3092\u7d4c\u9a13\u3057\u305f\u307b\u304b\u3001\u81ea\u8eab\u3067\u3082\u6848\u4ef6\u3092\u7372\u5f97\u3057\u307e\u3059\u3002\u8ee2\u8077\u6d3b\u52d5\u3067\u306f\u300130\u4ee3\u3068\u3044\u3046\u5e74\u9f62\u304c\u30cd\u30c3\u30af\u3060\u3063\u305f\u3082\u306e\u306e\u3001\u898b\u4e8b\u53d7\u8a17\u958b\u767a\u306e\u4f1a\u793e\u3078\u306e\u8ee2\u8077\u306e\u6210\u529f\u3092\u679c\u305f\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a73\u3057\u304f\u306f<a href=\"https:\/\/withcode.tech\/media\/interview-9\/\" title=\"\u53d7\u8a17\u958b\u767a\u306e\u4f1a\u793e\u306b\u5185\u5b9a\uff01\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u66f4\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3057\u6311\u6226\u4e2d\uff01\">\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -internal\" data-type=\"type1\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">\u3042\u308f\u305b\u3066\u8aad\u307f\u305f\u3044<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/05\/\u30a4\u30f3\u30bf\u30d3\u30e5\u30fc-14.jpg\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/withcode.tech\/media\/interview-9\/\">\u3010\u8ee2\u8077\u5e0c\u671b\u8005\u5fc5\u898b\u3011\u53d7\u8a17\u958b\u767a\u306e\u4f1a\u793e\u306b\u5185\u5b9a\uff01\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u66f4\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3057\u6311\u6226\u4e2d\uff01<\/a>\n\t\t\t\t\t\t<span class=\"p-blogCard__excerpt\">\u30da\u30f3\u535a\u58eb\uff01\u4eca\u56de\u306f\u3069\u3093\u306a\u65b9\u304c\u30a4\u30f3\u30bf\u30d3\u30e5\u30fc\u306b\u5fdc\u3058\u3066\u304f\u3060\u3055\u3063\u305f\u3093\u3067\u3059\u304b\uff1f \u3046\u3080\u3002\u4eca\u56de\u306f\u53d7\u8a17\u958b\u767a\u306e\u4f1a\u793e\u306b\u5185\u5b9a\u3092\u3082\u3089\u3063\u305f\u65b9\u3058\u3083\u305e\uff01\u3057\u304b\u3082\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u306e\u63a1&#8230;<\/span>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n<p class=\"has-text-align-left is-style-balloon_box2 wp-block-paragraph\"><strong>\u5409\u6c60\u3055\u3093\u306e\u4e3b\u306a\u5236\u4f5c\u5b9f\u7e3e\u306f\u3053\u3061\u3089<\/strong><\/p>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">\u4fe1\u7528\u529b\u5411\u4e0a\u3092\u76ee\u7684\u306b\u3057\u305f\u65b0\u898fHP\u5236\u4f5c<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/yourdelt.net_.webp\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/withcode.tech\/works\/yourdelt_hp\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u682a\u5f0f\u4f1a\u793eYOURDELT \u69d8<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>WordPress 404\u30a8\u30e9\u30fc\u3068\u306f\uff1f\u3088\u304f\u3042\u308b\u539f\u56e05\u3064<\/strong><\/h2>\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-02\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-02.webp\" alt=\"WordPress 404\u30a8\u30e9\u30fc\u3068\u306f\uff1f\u3088\u304f\u3042\u308b\u539f\u56e05\u3064\" class=\"wp-image-26824\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-02.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-02-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-02-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30a2\u30bb\u30c3\u30c8-6@4x-2.png\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u307e\u305a\u306f\u3001404\u30a8\u30e9\u30fc\u3068\u306f\u4f55\u304b\u3092\u89e3\u8aac\u3059\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>404\u30a8\u30e9\u30fc\u304c\u30b5\u30a4\u30c8\u306b\u4e0e\u3048\u308b\u5f71\u97ff<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">404\u30a8\u30e9\u30fc\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5b58\u5728\u3057\u306a\u3044\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u969b\u306b\u8868\u793a\u3055\u308c\u308b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3059\u3002\u3053\u308c\u304c\u983b\u767a\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u96e2\u8131\u7387\u304c\u9ad8\u307e\u308a\u3001SEO\u306b\u3082\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u300c\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u300d\u3082\u306e\u3068\u3057\u3066\u8a8d\u8b58\u3059\u308b\u305f\u3081\u3001\u691c\u7d22\u9806\u4f4d\u304c\u4f4e\u4e0b\u3057\u3001\u30a2\u30af\u30bb\u30b9\u6570\u304c\u6e1b\u5c11\u3059\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u3001Google\u306a\u3069\u306e\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f404\u30a8\u30e9\u30fc\u304c\u3042\u308b\u3053\u3068\u3067\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u4fe1\u983c\u6027\u304c\u640d\u306a\u308f\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u8fc5\u901f\u306b404\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u9069\u5207\u306a\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u72b6\u614b\u3092\u4fdd\u3064\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u4e3b\u306a\u539f\u56e0\u3068\u5bfe\u7b56\u6cd5<\/strong><\/h2>\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-03\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-03.webp\" alt=\"404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u4e3b\u306a\u539f\u56e0\u3068\u5bfe\u7b56\u6cd5\" class=\"wp-image-26825\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-03.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-03-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-03-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3053\u3053\u3067\u306f\u3001404\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u539f\u56e0\u3092\u89e3\u8aac\u3059\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e0d\u5177\u5408<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u3067\u300c404 Not Found\u300d\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u4ee3\u8868\u7684\u306a\u539f\u56e0\u306e\u4e00\u3064\u304c\u3001<strong><span class=\"swl-marker mark_yellow\">\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e0d\u5177\u5408<\/span><\/strong>\u3067\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u983b\u767a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_caution wp-block-paragraph\"><strong>\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u5909\u66f4\u5f8c\u306b\u767a\u751f<\/strong><br>\u65b0\u3057\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u308a\u3001\u30c6\u30fc\u30de\u3092\u5909\u66f4\u3057\u305f\u76f4\u5f8c\u306b\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">URL\u69cb\u9020\u3084\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306b\u5f71\u97ff\u304c\u53ca\u3076<\/span><\/strong>\u305f\u3081\u3067\u3059\u3002<br><br><strong>SEO\u7cfb\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u7cfb\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u539f\u56e0\u306b<\/strong><br>\u4f8b\u3048\u3070\u3001SEO\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u30d7\u30e9\u30b0\u30a4\u30f3\u304cURL\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u3066\u3057\u307e\u3044\u3001\u6b63\u5e38\u306b\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u6a5f\u80fd\u306f\u4fbf\u5229\u3067\u3082\u3001<strong><span class=\"swl-marker mark_yellow\">\u8a2d\u5b9a\u30df\u30b9\u304c\u30ea\u30f3\u30af\u5207\u308c\u3092\u62db\u304f<\/span><\/strong>\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<br><br><strong>\u30c6\u30fc\u30de\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u306b\u3088\u308b\u5f71\u97ff<\/strong><br>\u30c6\u30fc\u30de\u5074\u3067\u610f\u56f3\u305b\u305a\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u8d77\u304d\u3066\u3044\u308b\u3068\u3001\u5b58\u5728\u3059\u308b\u306f\u305a\u306e\u30da\u30fc\u30b8\u304c\u300c404\u300d\u3068\u306a\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<br><br><strong>\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3088\u308b\u4e92\u63db\u6027\u306e\u554f\u984c<\/strong><br>\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u304cWordPress\u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u30b3\u30fc\u30c9\u306e\u6574\u5408\u6027\u304c\u5d29\u308c\u3066\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3082\u3002\u7279\u306b\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u3001\u66f4\u65b0\u304c\u6b62\u307e\u3063\u3066\u3044\u308b\u30c6\u30fc\u30de\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>URL\u306e\u5909\u66f4\u3084\u524a\u9664\u306b\u3088\u308b\u30a8\u30e9\u30fc<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">URL\u306e\u5909\u66f4\u3084\u30da\u30fc\u30b8\u306e\u524a\u9664<\/span><\/strong>\u3082404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u4e00\u822c\u7684\u306a\u539f\u56e0\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_caution wp-block-paragraph\"><strong>\u30da\u30fc\u30b8\u306e\u79fb\u52d5\u30fb\u524a\u9664\u306b\u3088\u308b\u30ea\u30f3\u30af\u5207\u308c<\/strong><br>\u6295\u7a3f\u3084\u56fa\u5b9a\u30da\u30fc\u30b8\u3092\u524a\u9664\u30fb\u975e\u516c\u958b\u306b\u3057\u305f\u308a\u3001\u30ab\u30c6\u30b4\u30ea\u5909\u66f4\u306a\u3069\u3067URL\u304c\u5909\u5316\u3059\u308b\u3068\u3001\u53e4\u3044\u30ea\u30f3\u30af\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3057\u305f\u969b\u306b\u5b58\u5728\u3057\u306a\u3044\u30da\u30fc\u30b8\u6271\u3044\u306b\u306a\u308a\u307e\u3059\u3002<br><br><strong>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306e\u5909\u66f4<\/strong><br>WordPress\u306e\u8a2d\u5b9a\u304b\u3089\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u69cb\u9020\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u5168\u30da\u30fc\u30b8\u306eURL\u304c\u4e00\u6589\u306b\u66f8\u304d\u63db\u308f\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u65e7URL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u81ea\u52d5\u7684\u306b\u300c404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u300d\u306b\u98db\u3070\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br><br><strong>\u30bf\u30a4\u30c8\u30eb\u5909\u66f4\u306b\u3088\u308b\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u306e\u5909\u66f4<\/strong><br>WordPress\u306f\u8a18\u4e8b\u30bf\u30a4\u30c8\u30eb\u306b\u57fa\u3065\u3044\u3066\u30d1\u30fc\u30de\u30ea\u30f3\u30af\uff08URL\uff09\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u305f\u3081\u4f8b\u3048\u3070\u3001\uff1a<code>\/sample-post<\/code> \u2192 <code>\/new-title<\/code><br>\u306e\u3088\u3046\u306b\u30bf\u30a4\u30c8\u30eb\u5909\u66f4\u5f8c\u306bURL\u3092\u66f4\u65b0\u3059\u308b\u3068\u3001<strong><span class=\"swl-marker mark_yellow\">\u904e\u53bb\u306b\u30b7\u30a7\u30a2\u3055\u308c\u305fURL\u304c\u7121\u52b9<\/span><\/strong>\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u554f\u984c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u3067404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u539f\u56e0\u306e\u3072\u3068\u3064\u306b\u3001<strong><span class=\"swl-marker mark_yellow\">\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u554f\u984c<\/span><\/strong>\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001URL\u304c\u6b63\u5e38\u306b\u51e6\u7406\u3055\u308c\u305a\u3001404\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_caution wp-block-paragraph\"><strong>.htaccess\u306e\u8a2d\u5b9a\u30df\u30b9\uff08Apache\u5229\u7528\u6642\uff09<\/strong><br><code>.htaccess<\/code>\u306f\u3001WordPress\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u69cb\u9020\u3084\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30eb\u30fc\u30eb\u3092\u5236\u5fa1\u3059\u308b\u91cd\u8981\u306a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002<br><br>\u3088\u304f\u3042\u308b\u539f\u56e0<br><code>.htaccess<\/code>\u30d5\u30a1\u30a4\u30eb\u306e\u8a18\u8ff0\u30df\u30b9<br>WordPress\u63a8\u5968\u306e\u8a2d\u5b9a\u304c\u524a\u9664\u30fb\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u308b<br>\u30b5\u30a4\u30c8\u79fb\u8ee2\u30fb\u30b5\u30fc\u30d0\u30fc\u79fb\u52d5\u3067\u8a2d\u5b9a\u304c\u521d\u671f\u5316\u3055\u308c\u305f<br><br><br><strong>Nginx\u306e\u8a2d\u5b9a\u4e0d\u5099\uff08Nginx\u5229\u7528\u6642\uff09<\/strong><br>Apache\u3068\u7570\u306a\u308a\u3001Nginx\u3067\u306f<code>.htaccess<\/code>\u304c\u4f7f\u3048\u305a\u3001\u8a2d\u5b9a\u306f\u30b5\u30fc\u30d0\u30fc\u306e\u69cb\u6210\u30d5\u30a1\u30a4\u30eb\u3067\u76f4\u63a5\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u3088\u304f\u3042\u308b\u539f\u56e0<br><code>try_files<\/code>\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306e\u672a\u8a2d\u5b9a<br>WordPress\u30eb\u30fc\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u30eb\u30fc\u30eb\u304c\u6b20\u843d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>404\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\uff5c\u30d7\u30e9\u30b0\u30a4\u30f3\u6d3b\u7528\u8853<\/strong><\/h2>\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-04\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-04.webp\" alt=\"404\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\uff5c\u30d7\u30e9\u30b0\u30a4\u30f3\u6d3b\u7528\u8853\" class=\"wp-image-26826\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-04.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-04-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-04-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3053\u3053\u3067\u306f\u3001404\u30a8\u30e9\u30fc\u306e\u7c21\u5358\u306a\u89e3\u6c7a\u65b9\u6cd5\u3092\u89e3\u8aac\u3059\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>WordPress\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u3067404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u6700\u3082\u7c21\u5358\u306a\u89e3\u6c7a\u65b9\u6cd5\u306e\u4e00\u3064\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3053\u3068<\/span><\/strong>\u3067\u3059\u3002<br><br>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u306f\u3001\u30b5\u30a4\u30c8\u5185\u306e\u5404\u30da\u30fc\u30b8\u3084\u6295\u7a3f\u306eURL\u69cb\u9020\u3092\u5b9a\u7fa9\u3059\u308b\u3082\u306e\u3067\u3001\u3053\u308c\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u306a\u3044\u3068404\u30a8\u30e9\u30fc\u304c\u983b\u767a\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u30c6\u30fc\u30de\u3084\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u5909\u66f4\u5f8c\u3001URL\u304c\u9069\u5207\u306b\u53cd\u6620\u3055\u308c\u306a\u3044\u5834\u5408\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306e\u30ea\u30bb\u30c3\u30c8\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading\">1. WordPress\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3001\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong>\u8a2d\u5b9a<\/strong>\u300d\u2192\u300c<strong>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2062\" height=\"1174\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.03.18.jpg\" alt=\"WordPress\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\" class=\"wp-image-7641\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.03.18.jpg 2062w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.03.18-768x437.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.03.18-1536x875.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.03.18-2048x1166.jpg 2048w\" sizes=\"(max-width: 2062px) 100vw, 2062px\" \/><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">2. \u73fe\u5728\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u3001\u4e00\u5ea6\u300c\u57fa\u672c\u300d\u306b\u5909\u66f4\u3057\u3066\u300c<strong>\u5909\u66f4\u3092\u4fdd\u5b58<\/strong>\u300d\u3057\u307e\u3059\u3002<\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2496\" height=\"1386\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.06.13-1.jpg\" alt=\"WordPress\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\" class=\"wp-image-7649\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.06.13-1.jpg 2496w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.06.13-1-768x426.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.06.13-1-1536x853.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.06.13-1-2048x1137.jpg 2048w\" sizes=\"(max-width: 2496px) 100vw, 2496px\" \/><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">3. \u518d\u5ea6\u5e0c\u671b\u3059\u308b\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u69cb\u9020\u306b\u8a2d\u5b9a\u3057\u76f4\u3057\u3001\u518d\u3073\u300c<strong>\u5909\u66f4\u3092\u4fdd\u5b58<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2506\" height=\"1360\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.14.41-1.jpg\" alt=\"WordPress\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\" class=\"wp-image-7650\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.14.41-1.jpg 2506w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.14.41-1-768x417.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.14.41-1-1536x834.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.14.41-1-2048x1111.jpg 2048w\" sizes=\"(max-width: 2506px) 100vw, 2506px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u624b\u9806\u3092\u884c\u3046\u3053\u3068\u3067\u3001WordPress\u304c\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u306e\u8a2d\u5b9a\u3092\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3057\u3001404\u30a8\u30e9\u30fc\u304c\u89e3\u6d88\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ea\u30bb\u30c3\u30c8\u4f5c\u696d\u306b\u3088\u3063\u3066\u3001WordPress\u306f\u81ea\u52d5\u7684\u306b.htaccess\u30d5\u30a1\u30a4\u30eb\u3092\u66f4\u65b0\u3057\u3001URL\u306e\u554f\u984c\u3092\u4fee\u6b63\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3082\u3057\u3001\u3053\u306e\u624b\u9806\u3067\u3082\u30a8\u30e9\u30fc\u304c\u89e3\u6d88\u3055\u308c\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3084\u4ed6\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u5e72\u6e09\u304c\u539f\u56e0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u3053\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u30ea\u30bb\u30c3\u30c8\u304c\u6700\u3082\u7c21\u5358\u304b\u3064\u52b9\u679c\u7684\u306a\u89e3\u6c7a\u65b9\u6cd5\u3068\u306a\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u3067\u767a\u751f\u3059\u308b404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u306e\u4e00\u3064\u306b\u3001\u5c02\u7528\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6280\u8853\u7684\u306a\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u7c21\u5358\u306b\u30a8\u30e9\u30fc\u306e\u767a\u751f\u3092\u691c\u51fa\u3057\u3001\u81ea\u52d5\u7684\u306b\u4fee\u6b63\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u7279\u306b<span class=\"swl-marker mark_yellow\"><strong>\u300cRedirection\u300d\u3084\u300c404 to 301\u300d\u3068\u3044\u3063\u305f\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u4eba\u6c17<\/strong><\/span>\u3067\u3001\u7c21\u5358\u306a\u8a2d\u5b9a\u3067404\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Redirection<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cRedirection\u300d\u306f\u3001404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305fURL\u3092\u81ea\u52d5\u7684\u306b\u76e3\u8996\u3057\u3001\u9069\u5207\u306a\u30da\u30fc\u30b8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001<span class=\"swl-marker mark_yellow\"><strong>404\u30a8\u30e9\u30fc\u306b\u3088\u3063\u3066\u5931\u308f\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308bSEO\u8a55\u4fa1\u3092\u7dad\u6301<\/strong><\/span>\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">1. WordPress\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u6709\u52b9\u5316\u3057\u307e\u3059\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2170\" height=\"1342\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.36.46.jpg\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7654\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.36.46.jpg 2170w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.36.46-768x475.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.36.46-1536x950.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.36.46-2048x1267.jpg 2048w\" sizes=\"(max-width: 2170px) 100vw, 2170px\" \/><\/figure>\n<\/div>\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">2. \u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u300c\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3092\u958b\u59cb\u300d\u3092\u30af\u30ea\u30c3\u30af<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2500\" height=\"1384\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.39.57.jpg\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7655\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.39.57.jpg 2500w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.39.57-768x425.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.39.57-1536x850.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.39.57-2048x1134.jpg 2048w\" sizes=\"(max-width: 2500px) 100vw, 2500px\" \/><\/figure>\n<\/div>\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">3. \u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u5b8c\u4e86\u5f8c\u3001\u8ee2\u9001\u30eb\u30fc\u30eb\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001404\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3057\u305f\u5834\u5408\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u6307\u5b9a\u3057\u305f\u30da\u30fc\u30b8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2454\" height=\"1072\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.46.21.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7656\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.46.21.png 2454w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.46.21-768x335.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.46.21-1536x671.png 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.46.21-2048x895.png 2048w\" sizes=\"(max-width: 2454px) 100vw, 2454px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">404 to 301<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c404 to 301\u300d\u3082\u3001404\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u4fbf\u5229\u306a\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3059\u3002\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u3001<span class=\"swl-marker mark_yellow\"><strong>404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u3088\u3063\u3066\u5225\u306e\u30da\u30fc\u30b8\u306b\u8ee2\u9001\u3057\u307e\u3059\u3002301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u3001\u6052\u4e45\u7684\u306a\u79fb\u52d5\u3092\u610f\u5473\u3057\u3001Google\u306a\u3069\u306e\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u5bfe\u3057\u3066\u3001\u30ea\u30f3\u30af\u306e\u5909\u66f4\u3092\u4f1d\u3048\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/strong><\/span><\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">1. WordPress\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u3057\u3001\u6709\u52b9\u5316\u3057\u307e\u3059\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2338\" height=\"1156\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.55.21.jpg\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7657\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.55.21.jpg 2338w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.55.21-768x380.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.55.21-1536x759.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-14.55.21-2048x1013.jpg 2048w\" sizes=\"(max-width: 2338px) 100vw, 2338px\" \/><\/figure>\n<\/div>\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">2. \u6709\u52b9\u5316\u5f8c\u3001\u300c404 Errors\u300d\u3068\u300c404 Settings\u300d\u306e\u9078\u629e\u304c\u53ef\u80fd\u3067\u3059\u3002\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1370\" height=\"576\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.02.31.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7658\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.02.31.png 1370w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.02.31-768x323.png 768w\" sizes=\"(max-width: 1370px) 100vw, 1370px\" \/><\/figure>\n<\/div>\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">3. \u300c404 Errors\u300d\u3067\u306f\u3001\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2510\" height=\"862\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.01.40.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7659\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.01.40.png 2510w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.01.40-768x264.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.01.40-1536x528.png 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.01.40-2048x703.png 2048w\" sizes=\"(max-width: 2510px) 100vw, 2510px\" \/><\/figure>\n<\/div>\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">4. \u300c404 Settings\u300d\u3067\u306f\u3001\u5404\u7a2e\u8a2d\u5b9a\u304c\u53ef\u80fd\u3067\u3059\u3002<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2474\" height=\"1524\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.03.19.png\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067404\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\" class=\"wp-image-7660\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.03.19.png 2474w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.03.19-768x473.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.03.19-1536x946.png 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-12-05-15.03.19-2048x1262.png 2048w\" sizes=\"(max-width: 2474px) 100vw, 2474px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306b\u3088\u308a\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u8a55\u4fa1\u304c\u5f15\u304d\u7d99\u304c\u308c\u308b\u305f\u3081\u3001SEO\u5bfe\u7b56\u306b\u3082\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u624b\u8efd\u306b404\u30a8\u30e9\u30fc\u306e\u554f\u984c\u3092\u89e3\u6d88\u3057\u3059\u308c\u3070\u3001\u30b5\u30a4\u30c8\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u305e\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>.htaccess\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u30fb\u4fee\u6b63\u3059\u308b<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u3067404\u30a8\u30e9\u30fc\u304c\u983b\u767a\u3059\u308b\u539f\u56e0\u306e\u4e00\u3064\u306b\u3001.htaccess\u30d5\u30a1\u30a4\u30eb\u306e\u8a2d\u5b9a\u30df\u30b9\u3084\u7834\u640d\u304c\u3042\u308a\u307e\u3059\u3002.htaccess\u30d5\u30a1\u30a4\u30eb\u306f\u3001Apache\u30b5\u30fc\u30d0\u30fc\u3067\u52d5\u4f5c\u3059\u308b\u30b5\u30a4\u30c8\u306e\u91cd\u8981\u306a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002\u7279\u306b\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u3084\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u7ba1\u7406\u306b\u4f7f\u308f\u308c\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u3066\u3044\u306a\u3044\u3068\u3001404\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u3001.htaccess\u30d5\u30a1\u30a4\u30eb\u304c\u6b63\u3057\u304f\u5b58\u5728\u3057\u3066\u3044\u308b\u304b\u3001\u7834\u640d\u3057\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002WordPress\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u304b\u3089<strong><span class=\"swl-marker mark_yellow\">\u300c\u8a2d\u5b9a\u300d\u2192\u300c\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u300d<\/span><\/strong>\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3053\u3068\u3067\u3001\u901a\u5e38\u306f\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u81ea\u52d5\u7684\u306b\u518d\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u624b\u52d5\u3067\u78ba\u8a8d\u30fb\u4fee\u6b63\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u3001FTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001WordPress\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e.htaccess\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">.htaccess\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u65b0\u898f\u306b\u4f5c\u6210\u3057\u3001\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u8a18\u8ff0\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-php\" data-lang=\"PHP\"><code># BEGIN WordPress\n&lt;IfModule mod_rewrite.c&gt;\nRewriteEngine On\nRewriteBase \/\nRewriteRule ^index\\.php$ - [L]\nRewriteCond %{REQUEST_FILENAME} !-f\nRewriteCond %{REQUEST_FILENAME} !-d\nRewriteRule . \/index.php [L]\n&lt;\/IfModule&gt;\n# END WordPress<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001WordPress\u3067\u306e\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306b\u5fc5\u8981\u306a\u57fa\u672c\u7684\u306a\u30ea\u30e9\u30a4\u30c8\u30eb\u30fc\u30eb\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3057\u3066\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u5f8c\u3001\u30b5\u30a4\u30c8\u306e\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3082\u3057\u3053\u308c\u3067404\u30a8\u30e9\u30fc\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u306b\u554f\u984c\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u8005\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u304b\u3001\u5c02\u9580\u5bb6\u306b\u4f9d\u983c\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>.htaccess\u30d5\u30a1\u30a4\u30eb\u306e\u4fee\u6b63\u3067404\u30a8\u30e9\u30fc\u304c\u89e3\u6d88\u3055\u308c\u3001\u30b5\u30a4\u30c8\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3067\u304d\u308b\u305e\uff01\u3002<br>\u307e\u305f\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3060\u304b\u3089\u3001\u7de8\u96c6\u3059\u308b\u969b\u306f\u614e\u91cd\u306b\u884c\u3044\u3001\u554f\u984c\u304c\u89e3\u6c7a\u3057\u305f\u3089\u5fc5\u305a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u3058\u3083\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>404\u30da\u30fc\u30b8\u306e\u4f5c\u6210<\/strong>\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u3067404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5b58\u5728\u3057\u306a\u3044\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u6642\u3067\u3059\u3002\u305f\u3060\u3001\u3053\u308c\u3067\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u5341\u5206\u306a\u60c5\u5831\u304c\u4f1d\u308f\u3089\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u3053\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c404\u30a8\u30e9\u30fc\u306b\u76f4\u9762\u3057\u305f\u969b\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f404\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4e0d\u6e80\u3092\u548c\u3089\u3052\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u307e\u305f\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u5411\u4e0a\u3084SEO\u5bfe\u7b56\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">404\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3059\u308b\u4e3b\u306a\u65b9\u6cd5\u306b\u306f\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\u3067\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3068\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u3001<strong>\u300c404.php\u300d<\/strong>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c404.php\u300d\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5165\u529b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-php\" data-lang=\"PHP\"><code>&lt;?php\n\/* 404.php\u306b\u5fc5\u8981\u306a\u5185\u5bb9 *\/\n\/\/ header.php\u306e\u8aad\u307f\u8fbc\u307f\nget_header();\n\/\/ \u30b3\u30b3\u306b\u8868\u793a\u3057\u305f\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8a18\u8f09\n?&gt;\n&lt;div class=&quot;page-404&quot;&gt;\n  &lt;h1&gt;404 NOT FOUND&lt;\/h1&gt;\n  &lt;p&gt;\u304a\u63a2\u3057\u306e\u30da\u30fc\u30b8\u306f\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f&lt;\/p&gt;\n&lt;\/div&gt;\n&lt;?php\n\/\/ footer.php\u306e\u8aad\u307f\u8fbc\u307f\nget_footer();<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3001<strong><span class=\"swl-marker mark_yellow\">\u3053\u306e\u5185\u5bb9\u306e\u307f\u3060\u3068\u30e6\u30fc\u30b6\u30fc\u304c\u4e0d\u4fbf\u306b\u611f\u3058\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u3001\u300c\u30c8\u30c3\u30d7\u306b\u623b\u308b\u300d\u30ea\u30f3\u30af\u3084\u300c\u691c\u7d22\u30d5\u30a9\u30fc\u30e0\u300d\u30ea\u30f3\u30af\u304c\u3042\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/span><\/strong><\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">\u8a18\u8ff0\u4f8b<\/h5>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-php\" data-lang=\"PHP\"><code>&lt;?php\nget_header();\n?&gt;\n&lt;div class=&quot;page-404&quot;&gt;\n  &lt;h1&gt;404 NOT FOUND&lt;\/h1&gt;\n  &lt;p&gt;\u304a\u63a2\u3057\u306e\u30da\u30fc\u30b8\u306f\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f&lt;\/p&gt;\n  &lt;?php \/\/ \u30c8\u30c3\u30d7\u306b\u623b\u308b\u30dc\u30bf\u30f3 ?&gt;\n  &lt;a href=&quot;&lt;?php echo esc_url( home_url( &#39;\/&#39; ) ); ?&gt;&quot;&gt;\u30c8\u30c3\u30d7\u306b\u623b\u308b&lt;\/a&gt;\n  &lt;?php get_search_form(); \/\/ \u691c\u7d22\u30d5\u30a9\u30fc\u30e0 ?&gt;\n&lt;\/div&gt;\n&lt;?php\nget_footer();<\/code><\/pre><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u7c21\u5358\u306b404\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3067\u304d\u308b\u30d7\u30e9\u30b0\u30a4\u30f3<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u3067\u306f\u3001404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u308b\u4fbf\u5229\u306a\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082404\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u304a\u3059\u3059\u3081\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\"><strong>404page \u2013 your smart custom 404 error page<\/strong><\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1260\" height=\"310\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.52.54.png\" alt=\"404\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u3059\u308b\" class=\"wp-image-6416\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.52.54.png 1260w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.52.54-768x189.png 768w\" sizes=\"(max-width: 1260px) 100vw, 1260px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong><br><a href=\"https:\/\/wordpress.com\/ja\/plugins\/browse\/error-page\" title=\"\">404page \u2013 your smart custom 404 error page<\/a><\/strong>\u306f\u3001\u30ab\u30b9\u30bf\u30e0404\u30da\u30fc\u30b8\u3092\u624b\u8efd\u306b\u4f5c\u6210\u3067\u304d\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30c6\u30fc\u30de\u306e\u5909\u66f4\u3084\u66f4\u65b0\u306b\u5f71\u97ff\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u72ec\u81ea\u306e404\u30da\u30fc\u30b8\u3092\u7c21\u5358\u306b\u8a2d\u7f6e\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u30da\u30fc\u30b8\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u3053\u3060\u308f\u308a\u305f\u3044\u5834\u5408\u306b\u306f\u6709\u7528\u3067\u3001\u30d3\u30b8\u30e5\u30a2\u30eb\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3063\u3066\u3001\u901a\u5e38\u306e\u6295\u7a3f\u3084\u56fa\u5b9a\u30da\u30fc\u30b8\u3068\u540c\u3058\u3088\u3046\u306b\u30c7\u30b6\u30a4\u30f3\u3092\u8abf\u6574\u53ef\u80fd\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u969b\u306e\u7d71\u8a08\u60c5\u5831\u3082\u8a18\u9332\u3055\u308c\u3001\u30a8\u30e9\u30fc\u306e\u767a\u751f\u72b6\u6cc1\u3092\u628a\u63e1\u3067\u304d\u308b\u6a5f\u80fd\u3082\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">SeedProd<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"2348\" height=\"784\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.08.jpg\" alt=\"404\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u3059\u308b\" class=\"wp-image-6417\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.08.jpg 2348w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.08-768x256.jpg 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.08-1536x513.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.08-2048x684.jpg 2048w\" sizes=\"(max-width: 2348px) 100vw, 2348px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/ja.wordpress.org\/plugins\/coming-soon\/\" title=\"\">SeedProd<\/a><\/strong>\u306f\u3001404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u3084\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u591a\u6a5f\u80fd\u306a\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3059\u3002\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u5f0f\u306e\u30d3\u30b8\u30e5\u30a2\u30eb\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3063\u3066\u30c7\u30b6\u30a4\u30f3\u3092\u8abf\u6574\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u4e88\u3081\u7528\u610f\u3055\u308c\u305f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u77ed\u6642\u9593\u3067\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u69cb\u7bc9\u53ef\u80fd\u3067\u3059\u3002\u307e\u305f\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306e\u30c7\u30b6\u30a4\u30f3\u3067\u3001\u30e2\u30d0\u30a4\u30eb\u30e6\u30fc\u30b6\u30fc\u306b\u3082\u5feb\u9069\u306a\u30da\u30fc\u30b8\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading has-medium-font-size\">Elementor<\/h5>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1662\" height=\"806\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.23.png\" alt=\"404\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u3059\u308b\" class=\"wp-image-6418\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.23.png 1662w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.23-768x372.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/09\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-09-07-9.53.23-1536x745.png 1536w\" sizes=\"(max-width: 1662px) 100vw, 1662px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/elementor.com\/\" title=\"\">Elementor<\/a><\/strong>\u306f\u3001WordPress\u3067\u6700\u3082\u4eba\u6c17\u306e\u3042\u308b\u30da\u30fc\u30b8\u30d3\u30eb\u30c0\u30fc\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u3001404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u306e\u4f5c\u6210\u306b\u3082\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u591a\u5f69\u306a\u30c7\u30b6\u30a4\u30f3\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7c21\u5358\u306b\u30ab\u30b9\u30bf\u30e0404\u30da\u30fc\u30b8\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002\u7121\u6599\u7248\u3067\u3082\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u304c\u63c3\u3063\u3066\u304a\u308a\u3001\u30c7\u30b6\u30a4\u30f3\u306e\u81ea\u7531\u5ea6\u304c\u9ad8\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u5408\u308f\u305b\u305f\u4e00\u8cab\u6027\u306e\u3042\u308b404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3059\u308b\u306e\u306b\u6700\u9069\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7c21\u5358\u306b404\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u3092\u4f5c\u6210\u3067\u304d\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u306e\u5229\u4fbf\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30da\u30f3\u535a\u58eb\u3001404\u30a8\u30e9\u30fc\u3063\u3066\u3059\u3054\u304f\u8907\u96d1\u304b\u3068\u601d\u3063\u3066\u305f\u3051\u3069\u3001\u539f\u56e0\u3092\u4e00\u3064\u305a\u3064\u898b\u3066\u3044\u3051\u3070\u3061\u3083\u3093\u3068\u89e3\u6c7a\u3067\u304d\u308b\u3093\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u3058\u3083\u3088\u3002\u7126\u3089\u305a\u306b\u201c\u539f\u56e0\u2192\u5bfe\u51e6\u201d\u306e\u6d41\u308c\u3067\u6574\u7406\u3059\u308c\u3070\u3001404\u30a8\u30e9\u30fc\u3082\u6016\u304f\u306a\u3044\u3002<\/strong><br><strong>\u4f55\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u4e21\u65b9\u306b\u512a\u3057\u3044\u30b5\u30a4\u30c8\u306b\u306a\u308b\u3053\u3068\u304c\u5927\u5207\u3058\u3083<\/strong>\uff01<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.06.05.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\u52c9\u5f37\u306b\u306a\u308a\u307e\u3057\u305f\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>\u307e\u3068\u3081\uff1aWordPress 404\u30a8\u30e9\u30fc\u306e\u4e88\u9632\u3068\u5bfe\u7b56<\/strong><\/h2>\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-05\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-05.webp\" alt=\"\u307e\u3068\u3081\uff1aWordPress 404\u30a8\u30e9\u30fc\u306e\u4e88\u9632\u3068\u5bfe\u7b56\" class=\"wp-image-26827\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-05.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-05-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-05-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8a18\u4e8b\u3067\u306f\u3001404\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WordPress\u30b5\u30a4\u30c8\u3067\u767a\u751f\u3059\u308b404\u30a8\u30e9\u30fc\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3084SEO\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u8fc5\u901f\u304b\u3064\u9069\u5207\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_point wp-block-paragraph\"><strong>1. \u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u306e\u4e0d\u5177\u5408<\/strong><br>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u76f4\u5f8c\u3084\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306b\u4e0d\u5177\u5408\u304c\u8d77\u304d\u3084\u3059\u3044<br>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u69cb\u9020\u304c\u58ca\u308c\u308b\u5834\u5408\u3082<br><br>\u5bfe\u51e6\u6cd5\uff1a<br>\u4e0d\u5177\u5408\u306e\u3042\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u3092\u4e00\u6642\u505c\u6b62<br>\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306e\u300c\u5909\u66f4\u3092\u4fdd\u5b58\u300d\u3067\u518d\u69cb\u7bc9<br><br><strong>2.<\/strong> <strong>URL\u306e\u5909\u66f4\u30fb\u524a\u9664<\/strong><br>\u6295\u7a3f\u306e\u79fb\u52d5\u3001\u524a\u9664\u3001\u30ea\u30e9\u30a4\u30c8\u6642\u306b\u767a\u751f<br>\u5916\u90e8\u30ea\u30f3\u30af\u3084\u30d6\u30c3\u30af\u30de\u30fc\u30af\u304c\u65e7URL\u306e\u307e\u307e\u3060\u3068404\u306b<br><br>\u5bfe\u51e6\u6cd5\uff1a<br>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u8a2d\u5b9a\u3092\u8ffd\u52a0\uff08\u4f8b\uff1aRedirection\u30d7\u30e9\u30b0\u30a4\u30f3\uff09<br>\u30b5\u30a4\u30c8\u69cb\u6210\u306e\u898b\u76f4\u3057\u6642\u306fURL\u5909\u66f4\u306b\u6ce8\u610f<br><br>3. <strong>\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u554f\u984c<\/strong><br><code>.htaccess<\/code>\u306e\u8a18\u8ff0\u30df\u30b9\uff08Apache\uff09<br><code>try_files<\/code>\u306e\u8a2d\u5b9a\u6f0f\u308c\uff08Nginx\uff09<br><br>\u5bfe\u51e6\u6cd5\uff1a<br><code>.htaccess<\/code>\u3092\u4fee\u6b63<br>\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u78ba\u8a8d\u30fb\u4fee\u6b63\uff08\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u7ba1\u7406\u8005\u3078\u4f9d\u983c\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ab\u30b9\u30bf\u30e0404\u30da\u30fc\u30b8\u306e\u91cd\u8981\u6027\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_point wp-block-paragraph\"><strong>\u52b9\u679c<\/strong><br>\u96e2\u8131\u7387\u306e\u4f4e\u4e0b<br>\u5185\u90e8\u30ea\u30f3\u30af\u306b\u3088\u308b\u56de\u904a\u6027UP<br>SEO\u3078\u306e\u60aa\u5f71\u97ff\u3092\u7de9\u548c<br><br><strong>\u4f5c\u6210\u65b9\u6cd5<\/strong><br><code>404.php<\/code>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u30c6\u30fc\u30de\u306b\u8ffd\u52a0\u30fb\u7de8\u96c6<br>\u30d7\u30e9\u30b0\u30a4\u30f3\uff08\u4f8b\uff1a404page\uff09\u3067\u7c21\u5358\u306b\u8a2d\u5b9a\u53ef\u80fd<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">404\u30a8\u30e9\u30fc\u3092\u9632\u3050\u3053\u3068\u306f\u3001\u30b5\u30a4\u30c8\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a8\u30e9\u30fc\u306b\u76f4\u9762\u3059\u308b\u6a5f\u4f1a\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u6e80\u8db3\u5ea6\u3092\u9ad8\u3081\u3001\u30ea\u30d4\u30fc\u30c8\u7387\u306e\u5411\u4e0a\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u5bfe\u7b56\u3092\u3057\u3066\u3001\u5feb\u9069\u306a\u30b5\u30a4\u30c8\u904b\u55b6\u3092\u76ee\u6307\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<!-- withmedia-related -->\n<h2 class=\"wp-block-heading\">\u95a2\u9023\u8a18\u4e8b<\/h2>\n\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-06\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-06.webp\" alt=\"\u95a2\u9023\u8a18\u4e8b\" class=\"wp-image-26828\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-06.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-06-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-06-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/withcode.tech\/media\/wordpress-discord-integration\/\">WordPress\u3068Discord\u3092\u9023\u643a\u3055\u305b\u308b\u306b\u306f\uff1f\u52b9\u679c\u7684\u306a\u7d71\u5408\u65b9\u6cd5\u3092\u89e3\u8aac<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/wordpress-custom-post-type\/\">WordPress\u306e\u30ab\u30b9\u30bf\u30e0\u6295\u7a3f\u3068\u306f\uff1f\u30d7\u30e9\u30b0\u30a4\u30f3\u300cCustom Post Type UI\u300d\u3067\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u5fb9\u5e95\u89e3\u8aac\uff01<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/wordpress-profile\/\">WordPress \u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u767b\u9332\u6a5f\u80fd\u306e\u5b9f\u88c5\u65b9\u6cd5\uff5c\u30b3\u30fc\u30c9\u4f8b\u4ed8\u304d\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/quote-block\/\">WordPress\u5f15\u7528\u30d6\u30ed\u30c3\u30af\u306e\u4f7f\u3044\u65b9\uff5c\u8a2d\u5b9a\u304b\u3089\u30c7\u30b6\u30a4\u30f3\u5909\u66f4\u307e\u3067\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/wordpress-eyecatch\/\">WordPress\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\u306e\u8a2d\u5b9a\u65b9\u6cd5|\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/wordpress-language-switching\/\">WordPress\u8a00\u8a9e\u8a2d\u5b9a\u3092\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u5207\u308a\u66ff\u3048\u65b9\u6cd55\u30b9\u30c6\u30c3\u30d7<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/practical-prompt\/\">\u3010\u77e5\u3089\u306a\u3044\u3068\u30e4\u30d0\u3044\uff01\u3011\u3088\u304f\u4f7f\u3046ChatGPT\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u5b9f\u969b\u306e\u30a8\u30e9\u30fc\u3068\u5171\u306b\u7d39\u4ecb\uff01<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<!-- withmedia-references -->\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u30ea\u30f3\u30af\uff08\u516c\u5f0f\u30fb\u4e00\u6b21\u60c5\u5831\uff09<\/h2>\n\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-07\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-07.webp\" alt=\"\u53c2\u8003\u30ea\u30f3\u30af\uff08\u516c\u5f0f\u30fb\u4e00\u6b21\u60c5\u5831\uff09\" class=\"wp-image-26829\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-07.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-07-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-07-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/ja.wordpress.org\/support\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress \u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/www.php.net\/manual\/ja\/\" target=\"_blank\" rel=\"noopener noreferrer\">PHP \u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/developers.google.com\/search\/docs\/fundamentals\/seo-starter-guide?hl=ja\" target=\"_blank\" rel=\"noopener noreferrer\">Google \u691c\u7d22\u30bb\u30f3\u30c8\u30e9\u30eb\uff08SEO\u30b9\u30bf\u30fc\u30bf\u30fc\u30ac\u30a4\u30c9\uff09<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<!-- withmedia-faq -->\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n\n\n<figure class=\"wp-block-image size-large withmedia-access-priority-next3\" data-withmedia-image=\"withmedia-next3-6393-h2-08\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-08.webp\" alt=\"\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09\" class=\"wp-image-26830\" width=\"1672\" height=\"941\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-08.webp 1672w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-08-768x432.webp 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/wordpress-404error-h2-08-1536x864.webp 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n\n\n<h3 class=\"wp-block-heading\">Q1. WordPress\u3067404\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u4e3b\u306a\u539f\u56e0\u306f\uff1f<\/h3>\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u4ee3\u8868\u7684\u306a\u539f\u56e0\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e0d\u5177\u5408\u3001\u6295\u7a3f\u524a\u9664\u3084\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u5909\u66f4\u306b\u3088\u308bURL\u306e\u5909\u5316\u3001\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\uff08Apache\u306e.htaccess\u3084Nginx\u306etry_files\uff09\u306e\u30df\u30b9\u3067\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u5c0e\u5165\u76f4\u5f8c\u3084\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u3001\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u69cb\u9020\u306e\u5909\u66f4\u5f8c\u306b\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q2. 404\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u305f\u3089\u307e\u305a\u4f55\u3092\u3059\u308c\u3070\u3044\u3044\uff1f<\/h3>\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u6700\u3082\u7c21\u5358\u306a\u5bfe\u51e6\u6cd5\u306f\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u306e\u30ea\u30bb\u30c3\u30c8\u3067\u3059\u3002\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3067\u300c\u8a2d\u5b9a\u300d\u2192\u300c\u30d1\u30fc\u30de\u30ea\u30f3\u30af\u8a2d\u5b9a\u300d\u3092\u958b\u304d\u3001\u4e00\u5ea6\u300c\u57fa\u672c\u300d\u306b\u5909\u66f4\u3057\u3066\u4fdd\u5b58\u3057\u3001\u518d\u3073\u5e0c\u671b\u306e\u69cb\u9020\u306b\u623b\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002\u3053\u308c\u3067WordPress\u304c.htaccess\u3092\u81ea\u52d5\u66f4\u65b0\u3057\u3001\u591a\u304f\u306e\u30a8\u30e9\u30fc\u304c\u89e3\u6d88\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q3. 404\u30a8\u30e9\u30fc\u3092\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u306f\uff1f<\/h3>\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> Redirection\u3084404 to 301\u3068\u3044\u3063\u305f\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u6709\u52b9\u3067\u3059\u3002Redirection\u306f404\u304c\u767a\u751f\u3057\u305fURL\u3092\u76e3\u8996\u3057\u3066\u6307\u5b9a\u30da\u30fc\u30b8\u3078\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u3001404 to 301\u306f301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u5225\u30da\u30fc\u30b8\u3078\u8ee2\u9001\u3057\u307e\u3059\u3002\u3044\u305a\u308c\u3082\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u8a55\u4fa1\u3092\u5f15\u304d\u7d99\u3052\u308b\u305f\u3081SEO\u5bfe\u7b56\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q4. 404\u30a8\u30e9\u30fc\u306fSEO\u306b\u5f71\u97ff\u3057\u307e\u3059\u304b\uff1f<\/h3>\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u5f71\u97ff\u3057\u307e\u3059\u3002404\u304c\u983b\u767a\u3059\u308b\u3068\u30e6\u30fc\u30b6\u30fc\u306e\u96e2\u8131\u7387\u304c\u4e0a\u304c\u308a\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f\u300c\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u300d\u3068\u8a8d\u8b58\u3059\u308b\u305f\u3081\u691c\u7d22\u9806\u4f4d\u306e\u4f4e\u4e0b\u3084\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u4fe1\u983c\u6027\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u8fc5\u901f\u306b\u89e3\u6c7a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u9069\u5207\u306a\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u72b6\u614b\u3092\u4fdd\u3064\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q5. \u30ab\u30b9\u30bf\u30e0404\u30da\u30fc\u30b8\u3092\u4f5c\u308b\u30e1\u30ea\u30c3\u30c8\u306f\uff1f<\/h3>\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u30ab\u30b9\u30bf\u30e0404\u30da\u30fc\u30b8\u3092\u4f5c\u308b\u3068\u96e2\u8131\u7387\u3092\u4e0b\u3052\u3001\u5185\u90e8\u30ea\u30f3\u30af\u306b\u3088\u308b\u56de\u904a\u6027\u3092\u9ad8\u3081\u3001SEO\u3078\u306e\u60aa\u5f71\u97ff\u3092\u7de9\u548c\u3067\u304d\u307e\u3059\u3002\u30c6\u30fc\u30de\u306b404.php\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u8ffd\u52a0\u30fb\u7de8\u96c6\u3059\u308b\u65b9\u6cd5\u3084\u3001404page\u306a\u3069\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3001Elementor\u306e\u3088\u3046\u306a\u30da\u30fc\u30b8\u30d3\u30eb\u30c0\u30fc\u3067\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n\n<h2 class=\"wp-block-heading\">AI\u30b9\u30ad\u30eb\u3067\u3001\u672a\u6765\u306e\u81ea\u5206\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\uff01<\/h2>\n\n<figure class=\"wp-block-image aligncenter size-large\"><a href=\"https:\/\/s.lmes.jp\/landing-qr\/2010578884-C5To3Fmv?uLand=phzKXf\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner.jpg\" alt=\"\u4eca\u306a\u3089\u5b8c\u5168\u7121\u6599\u3067AI\u3092\u5b66\u3079\u308b\uff01WithAI\" class=\"wp-image-18841\" style=\"max-width:600px;width:100%;height:auto\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner.jpg 1254w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner-768x768.jpg 768w\" sizes=\"(max-width: 1254px) 100vw, 1254px\" \/><\/a><\/figure>\n\n<h3 class=\"wp-block-heading\">\u4eca\u306a\u3089\u5b8c\u5168\u7121\u6599\u3067AI\u3092\u5b66\u3079\u308b\uff01<\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u52d5\u753b\u3084\u5b9f\u8df5\u3067\u697d\u3057\u304f\u5b66\u3079\u308b<\/strong>\uff1a\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5fc3\u306e\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0<\/li>\n<li><strong>\u30b9\u30de\u30db\u30fbPC\u3069\u3061\u3089\u3067\u3082OK<\/strong>\uff1a\u597d\u304d\u306a\u6642\u9593\u306b\u5b66\u7fd2\u3067\u304d\u308b<\/li>\n<li><strong>\u6599\u91d1\u306f\u4e00\u5207\u30ca\u30b7<\/strong>\uff1a<span class=\"swl-marker mark_yellow\">0\u5186\u3067AI\u30b9\u30ad\u30eb\u304c\u8eab\u306b\u3064\u304f<\/span><\/li>\n<\/ul>\n\n<p>\u76ee\u7684\u306b\u5408\u308f\u305b\u3066\u9078\u3079\u308b\u300cAI\u526f\u696d\u300d\u300cAI\u8ee2\u8077\u300d\u300cAI\u6d3b\u7528\u300d\u306e3\u30b3\u30fc\u30b9\u3092\u7528\u610f\u3002\u526f\u53ce\u5165\u30fb\u30ad\u30e3\u30ea\u30a2\u30c1\u30a7\u30f3\u30b8\u30fb\u65e5\u5e38\u306e\u751f\u7523\u6027\u30a2\u30c3\u30d7\u307e\u3067\u3001\u3042\u306a\u305f\u306e\u30b4\u30fc\u30eb\u306b\u5408\u308f\u305b\u3066AI\u3092\u5b66\u3079\u307e\u3059\u3002<\/p>\n\n<p>\u4f1a\u54e1\u767b\u9332\u306f\u30ab\u30f3\u30bf\u30f330\u79d2\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u516c\u5f0fLINE\u304b\u3089\u3001\u7121\u6599\u3067AI\u5b66\u7fd2\u3092\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n\n<div class=\"wp-block-buttons\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/s.lmes.jp\/landing-qr\/2010578884-C5To3Fmv?uLand=phzKXf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"background-color:#06c755\"><strong>\u516c\u5f0fLINE\u304b\u3089\u5b66\u7fd2\u3092\u30b9\u30bf\u30fc\u30c8<\/strong><\/a><\/div><\/div>\n\n\n<!-- withmedia-faq-schema -->\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"WordPress\u3067404\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u4e3b\u306a\u539f\u56e0\u306f\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": 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