{"id":13189,"date":"2026-03-17T06:25:08","date_gmt":"2026-03-17T06:25:08","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=13189"},"modified":"2026-07-02T07:53:27","modified_gmt":"2026-07-02T07:53:27","slug":"multilingual-seo-hreflang-guide","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/multilingual-seo-hreflang-guide\/","title":{"rendered":"\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eSEO\u5bfe\u7b56\u5b8c\u5168\u30ac\u30a4\u30c9\uff5chreflang\u5c5e\u6027\u306e\u8a2d\u5b9a\u65b9\u6cd5\u30fbURL\u69cb\u9020\u8a2d\u8a08\u30fb\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u307e\u3067\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n<div class=\"wp-block-group swl-box\"><div class=\"wp-block-group__inner-container\">\n\n<h3 class=\"wp-block-heading\">\u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068<\/h3>\n\n\n<ul class=\"wp-block-list\">\n  <li>hreflang\u5c5e\u6027\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u8a2d\u5b9a\u3059\u3079\u304d\u30eb\u30fc\u30eb<\/li>\n  <li>\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eURL\u69cb\u90203\u30d1\u30bf\u30fc\u30f3\uff08ccTLD\u30fb\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\uff09\u306e\u4f7f\u3044\u5206\u3051<\/li>\n  <li>XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067\u306ehreflang\u8a2d\u5b9a\u65b9\u6cd5<\/li>\n  <li>WordPress\uff08Polylang\/WPML\uff09\u3068Next.js App Router\u3067\u306e\u5b9f\u88c5\u4f8b<\/li>\n  <li>\u5730\u57df\u5225\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u5bfe\u7b56\u3068\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u6226\u7565<\/li>\n<\/ul>\n\n<\/div><\/div>\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\u30c8-2025-06-15-14.48.08.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>\u65e5\u672c\u8a9e\u3068\u82f1\u8a9e\u306e\u4e21\u65b9\u3067\u30b5\u30a4\u30c8\u3092\u4f5c\u3063\u305f\u3093\u3067\u3059\u304c\u3001\u65e5\u672c\u306eGoogle\u3067\u82f1\u8a9e\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u305f\u308a\u3001\u9006\u306b\u306a\u3063\u305f\u308a\u3057\u3066SEO\u304c\u4e0a\u624b\u304f\u3044\u304d\u307e\u305b\u3093\u2026\u2026<\/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\u30c8-2025-06-15-15.11.23.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>\u305d\u308c\u306fhreflang\u5c5e\u6027\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3089\u3058\u3083\uff01hreflang\u5c5e\u6027\u3067\u300c\u3053\u306e\u30da\u30fc\u30b8\u306e\u65e5\u672c\u8a9e\u7248\u306f\u3053\u306eURL\u3001\u82f1\u8a9e\u7248\u306f\u3053\u306eURL\u300d\u3068\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u6559\u3048\u308b\u3053\u3068\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u9069\u5207\u306a\u8a00\u8a9e\u306e\u30da\u30fc\u30b8\u3092\u8868\u793a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u305e\u3002\u8a2d\u5b9a\u65b9\u6cd5\u306f\u30b7\u30f3\u30d7\u30eb\u3058\u3083\u304c\u3001\u6b63\u78ba\u306b\u66f8\u304b\u306a\u3044\u3068\u9006\u52b9\u679c\u306b\u306a\u308b\u304b\u3089\u6ce8\u610f\u304c\u5fc5\u8981\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<p class=\"wp-block-paragraph\"><strong>\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8SEO\u306e\u6838\u5fc3\u306f\u300chreflang\u5c5e\u6027\u306e\u6b63\u78ba\u306a\u76f8\u4e92\u8a2d\u5b9a\u300d\u3067\u3059\u3002\u5168\u8a00\u8a9e\u30da\u30fc\u30b8\u306b\u76f8\u4e92\u30ea\u30f3\u30af\u3067\u8a2d\u5b9a\u3057\u3001\u7d76\u5bfeURL\u3092\u4f7f\u3044\u3001\u81ea\u30da\u30fc\u30b8\u3068x-default\u3092\u542b\u3081\u308b\u2014\u2014\u3053\u306e3\u30eb\u30fc\u30eb\u3092\u5b88\u308c\u3070\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u304c\u8a00\u8a9e\u3092\u6b63\u3057\u304f\u8b58\u5225\u3057\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8a18\u4e8b\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eSEO\u5bfe\u7b567\u3064\u306e\u30dd\u30a4\u30f3\u30c8\u30fbhreflang\u5c5e\u6027\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9\u30fbURL\u69cb\u9020\u306e3\u3064\u306e\u9078\u629e\u80a2\u3068\u305d\u308c\u305e\u308c\u306e\u4f7f\u3044\u5206\u3051\u30fbXML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067\u306ehreflang\u8a2d\u5b9a\u30fblang\u5c5e\u6027\u30fbcanonical\u8a2d\u5b9a\u30fb\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u30fbWordPress WPML\/Polylang\u8a2d\u5b9a\u30fbNext.js i18n\u30fb\u5730\u57df\u5225\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u5bfe\u7b56<\/span><\/strong>\u3092\u5b8c\u5168\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8SEO\u304c\u5fc5\u8981\u306a\u7406\u7531\uff5c\u7ffb\u8a33\u6a5f\u80fd\u306b\u4efb\u305b\u3066\u306f\u3044\u3051\u306a\u3044<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Chrome\u306a\u3069\u306e\u30d6\u30e9\u30a6\u30b6\u306fAI\u7ffb\u8a33\u6a5f\u80fd\u3092\u642d\u8f09\u3057\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u5916\u56fd\u8a9e\u30da\u30fc\u30b8\u3067\u3082\u8aad\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057<strong>\u30d6\u30e9\u30a6\u30b6\u304c\u7ffb\u8a33\u3057\u305f\u5185\u5bb9\u306fGoogle\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u307e\u305b\u3093<\/strong>\u3002\u591a\u8a00\u8a9e\u3067\u306e\u691c\u7d22\u6d41\u5165\u3092\u7372\u5f97\u3059\u308b\u306b\u306f\u3001\u5404\u8a00\u8a9e\u306e\u30da\u30fc\u30b8\u3092\u660e\u793a\u7684\u306b\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010\u591a\u8a00\u8a9eSEO\u304c\u5fc5\u8981\u306a\u7406\u7531\u3011\n\n\u274c \u30d6\u30e9\u30a6\u30b6\u7ffb\u8a33\u6a5f\u80fd\u306b\u4efb\u305b\u308b\u5834\u5408\uff1a\n\u2192 \u30e6\u30fc\u30b6\u30fc\u306f\u8aad\u3081\u308b\u304c\u3001\u82f1\u8a9e\u3067\u306eGoogle\u691c\u7d22\u306b\u306f\u5f15\u3063\u304b\u304b\u3089\u306a\u3044\n\u2192 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u308b\u306e\u306f\u65e5\u672c\u8a9e\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u307f\n\u2192 \u82f1\u8a9e\u570f\u304b\u3089\u306e\u691c\u7d22\u6d41\u5165\u304c\u30bc\u30ed\u306b\u306a\u308b\n\n\u2705 \u591a\u8a00\u8a9e\u30da\u30fc\u30b8\u3092\u7528\u610f\u3057\u305f\u5834\u5408\uff1a\n\u2192 \u82f1\u8a9e\u306e\u30da\u30fc\u30b8\u304c\u82f1\u8a9e\u306eGoogle\u691c\u7d22\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u308b\n\u2192 \u5404\u8a00\u8a9e\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u6700\u9069\u306a\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\n\u2192 \u30b0\u30ed\u30fc\u30d0\u30eb\u304b\u3089\u306e\u691c\u7d22\u6d41\u5165\u3092\u7372\u5f97\u3067\u304d\u308b\n\u2192 \u7ffb\u8a33\u306e\u8cea\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u3066\u30d6\u30e9\u30f3\u30c9\u30a4\u30e1\u30fc\u30b8\u3092\u5b88\u308c\u308b<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u591a\u8a00\u8a9eSEO\u5bfe\u7b567\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010\u591a\u8a00\u8a9eSEO\u306e7\u3064\u306e\u30dd\u30a4\u30f3\u30c8\u3011\n\n1. URL\u69cb\u9020\u306e\u8a2d\u8a08\uff08\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u578b\u304c\u63a8\u5968\uff09\n2. hreflang\u5c5e\u6027\u306e\u6b63\u78ba\u306a\u8a2d\u5b9a\n3. HTML\u306elang\u5c5e\u6027\n4. canonical\u5c5e\u6027\u306e\u8a2d\u5b9a\n5. XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3078\u306ehreflang\u8a18\u8ff0\n6. \u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u771f\u306e\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\uff08\u7ffb\u8a33\u4ee5\u4e0a\u306e\u3082\u306e\uff09\n7. \u5730\u57df\u5225\u30ad\u30fc\u30ef\u30fc\u30c9\u30ea\u30b5\u30fc\u30c1<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eURL\u69cb\u9020\u8a2d\u8a08\uff5c3\u3064\u306e\u9078\u629e\u80a2\u3068\u4f7f\u3044\u5206\u3051<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" src=\"img\/multilingual_url_structure.png\" alt=\"\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eURL\u69cb\u90203\u30d1\u30bf\u30fc\u30f3\u306e\u6bd4\u8f03\u56f3\" class=\"wp-image-12540\"\/><\/figure>\n<\/div>\n\n<table>\n  <thead>\n    <tr><th>\u69cb\u9020<\/th><th>\u4f8b<\/th><th>SEO\u8a55\u4fa1<\/th><th>\u5411\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9<\/th><th>\u30e1\u30ea\u30c3\u30c8<\/th><th>\u30c7\u30e1\u30ea\u30c3\u30c8<\/th><\/tr>\n  <\/thead>\n  <tbody>\n    <tr><td><strong>\u30eb\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\uff08ccTLD\uff09<\/strong><\/td><td>example.co.jp \/ example.com<\/td><td>\u8a00\u8a9e\u9593\u3067\u72ec\u7acb\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1<\/td><td>\u30c6\u30fc\u30de\u304c\u7570\u306a\u308b\u30fb\u7ba1\u7406\u8005\u304c\u5225\u30fb\u5404\u56fd\u3067\u5f37\u3044\u6a29\u5a01\u304c\u5fc5\u8981<\/td><td>\u56fd\u5225SEO\u306b\u6700\u5f37\u30fb\u30d6\u30e9\u30f3\u30c9\u306e\u72ec\u7acb\u6027<\/td><td>\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1\u3092\u5206\u6563\u3055\u305b\u308b\u5fc5\u8981\u3042\u308a\u30fb\u30b3\u30b9\u30c8\u9ad8<\/td><\/tr>\n    <tr><td><strong>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3<\/strong><\/td><td>jp.example.com \/ en.example.com<\/td><td>\u30eb\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\u306e\u8a55\u4fa1\u3092\u4e00\u90e8\u7d99\u627f<\/td><td>\u5225\u4e8b\u696d\u4e3b\u611f\u3092\u51fa\u3057\u305f\u3044\u30fb\u7ba1\u7406\u753b\u9762\u3092\u5206\u3051\u305f\u3044<\/td><td>\u72ec\u7acb\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u304c\u53ef\u80fd<\/td><td>ccTLD\u3088\u308a\u56fd\u5225\u30b7\u30b0\u30ca\u30eb\u304c\u5f31\u3044<\/td><\/tr>\n    <tr><td><strong>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\uff08\u63a8\u5968\uff09<\/strong><\/td><td>example.com\/ja\/ \/ example.com\/en\/<\/td><td>\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1\u3092\u5171\u6709\uff08SEO\u6700\u5f37\uff09<\/td><td>\u540c\u3058\u30b5\u30a4\u30c8\u30fb\u540c\u3058\u7ba1\u7406\u8005\uff08\u6700\u3082\u4e00\u822c\u7684\uff09<\/td><td>\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1\u3092\u96c6\u7d04\u30fb\u5b9f\u88c5\u304c\u6700\u3082\u7c21\u5358<\/td><td>\u30b5\u30fc\u30d0\u30fc\u5206\u96e2\u304c\u96e3\u3057\u3044<\/td><\/tr>\n  <\/tbody>\n<\/table>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010\u274c \u907f\u3051\u308b\u3079\u304dURL\u69cb\u9020\u3011\n\n\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u5f62\u5f0f\uff08\u975e\u63a8\u5968\uff09\uff1a\nhttps:\/\/www.example.com?lang=ja  \u2192 \u30af\u30ed\u30fc\u30e9\u30fc\u304c\u6b63\u3057\u304f\u8a8d\u8b58\u3057\u306b\u304f\u3044\n\n\u30d5\u30a1\u30a4\u30eb\u540d\u5f62\u5f0f\uff08\u975e\u63a8\u5968\uff09\uff1a\nhttps:\/\/www.example.com\/index.html\uff08\u65e5\u672c\u8a9e\uff09\nhttps:\/\/www.example.com\/index-en.html\uff08\u82f1\u8a9e\uff09\n\u2192 \u5bfe\u5fdc\u95a2\u4fc2\u304c\u4e0d\u660e\u77ad\u3067hreflang\u306e\u8a2d\u5b9a\u3082\u8907\u96d1\u306b\u306a\u308b\n\n\u3010\u63a8\u5968\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u306e\u4f8b\u3011\nhttps:\/\/www.example.com\/         \u2192 x-default\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09\nhttps:\/\/www.example.com\/ja\/      \u2192 \u65e5\u672c\u8a9e\nhttps:\/\/www.example.com\/en\/      \u2192 \u82f1\u8a9e\nhttps:\/\/www.example.com\/zh\/      \u2192 \u4e2d\u56fd\u8a9e\uff08\u7c21\u4f53\u5b57\uff09\nhttps:\/\/www.example.com\/zh-TW\/   \u2192 \u4e2d\u56fd\u8a9e\uff08\u7e41\u4f53\u5b57\uff09\nhttps:\/\/www.example.com\/ko\/      \u2192 \u97d3\u56fd\u8a9e<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">hreflang\u5c5e\u6027\u306e\u8a2d\u5b9a\u65b9\u6cd5\uff5c\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3068\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">hreflang\u5c5e\u6027\u306f\u3001<strong>\u300c\u3053\u306e\u30da\u30fc\u30b8\u306b\u306f\u5225\u8a00\u8a9e\u7248\u304c\u3042\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u4f1d\u3048\u308b\u30ea\u30f3\u30af\u30bf\u30b0<\/strong>\u3067\u3059\u3002<code>&lt;head&gt;<\/code> \u5185\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002Google\u306fhreflang\u3092\u53c2\u7167\u3057\u3066\u5404\u30e6\u30fc\u30b6\u30fc\u306b\u6700\u9069\u306a\u8a00\u8a9e\u306e\u30da\u30fc\u30b8\u3092\u691c\u7d22\u7d50\u679c\u306b\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\uff08\u65e5\u82f12\u8a00\u8a9e\u306e\u5834\u5408\uff09<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&gt;&lt;!-- \u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u306e &lt;head&gt; \u5185\u306b\u8a18\u8ff0 --&gt;\n&lt;head&gt;\n  &lt;!-- \u81ea\u5206\u81ea\u8eab\u306e\u30da\u30fc\u30b8\u3082\u542b\u3081\u3066\u5168\u8a00\u8a9e\u7248\u3092\u5217\u6319\u3059\u308b\uff08\u3053\u308c\u304c\u6700\u3082\u91cd\u8981\u306a\u30eb\u30fc\u30eb\uff01\uff09 --&gt;\n  &lt;link rel=\"alternate\" hreflang=\"ja\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n  &lt;link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/www.example.com\/en\/\"&gt;\n  &lt;!-- x-default: \u3069\u306e\u8a00\u8a9e\u306b\u3082\u8a72\u5f53\u3057\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30da\u30fc\u30b8 --&gt;\n  &lt;link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n&lt;\/head&gt;<\/code><\/pre><\/div>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&gt;&lt;!-- \u82f1\u8a9e\u30da\u30fc\u30b8\u306e &lt;head&gt; \u5185\u306b\u8a18\u8ff0\uff08\u4e21\u65b9\u306e\u30da\u30fc\u30b8\u306b\u8a18\u8ff0\u304c\u5fc5\u8981\uff01\uff09 --&gt;\n&lt;head&gt;\n  &lt;!-- \u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u3068\u5168\u304f\u540c\u3058hreflang\u8a2d\u5b9a\u3092\u8a18\u8ff0\u3059\u308b --&gt;\n  &lt;link rel=\"alternate\" hreflang=\"ja\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n  &lt;link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/www.example.com\/en\/\"&gt;\n  &lt;link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n&lt;\/head&gt;<\/code><\/pre><\/div>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010hreflang\u8a2d\u5b9a\u306e\u91cd\u8981\u30eb\u30fc\u30eb\u3011\n\n\u2705 \u5168\u8a00\u8a9e\u30da\u30fc\u30b8\u306b\u8a2d\u5b9a\u304c\u5fc5\u8981\uff08\u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u3060\u3051\u3067\u306a\u304f\u82f1\u8a9e\u30da\u30fc\u30b8\u306b\u3082\uff09\n\u2705 \u81ea\u30da\u30fc\u30b8\u81ea\u8eab\u3078\u306e hreflang \u3082\u542b\u3081\u308b\n\u2705 x-default \u306f\u5fc5\u305a\u6307\u5b9a\u3059\u308b\n\u2705 hreflang \u306e\u5024\u306f\u8a00\u8a9e\u30b3\u30fc\u30c9\uff08ISO 639-1\uff09\u306e\u5f62\u5f0f\u3067\u8a18\u8ff0\n\u2705 URL\u306f\u7d76\u5bfeURL\uff08https:\/\/\u304b\u3089\u59cb\u307e\u308b\u5b8c\u5168\u306aURL\uff09\u3067\u8a18\u8ff0\n\u2705 www\u3042\u308a\u3068\u306a\u3057\u306f\u7d71\u4e00\u3059\u308b\uff08\u3069\u3061\u3089\u304b\u306b\u7d71\u4e00\u3057\u3066\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\uff09\n\n\u274c \u3088\u304f\u3042\u308b\u9593\u9055\u3044\uff1a\n\u2192 \u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u306b\u3057\u304b\u8a2d\u5b9a\u3057\u306a\u3044\uff08\u30da\u30a2\u3067\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u7121\u52b9\uff09\n\u2192 hreflang=\"japanese\" \u306e\u3088\u3046\u306b\u6b63\u5f0f\u30b3\u30fc\u30c9\u3067\u306a\u3044\u5024\u3092\u4f7f\u3046\uff08\u6b63: \"ja\"\uff09\n\u2192 URL\u306bwww\u3042\u308a\u30fb\u306a\u3057\u304c\u6df7\u5728\u3059\u308b\uff08\u7d76\u5bfeURL\u3092\u7d71\u4e00\u3059\u308b\u3053\u3068\uff09\n\u2192 \u76f8\u5bfeURL\u3092\u4f7f\u3046\uff08\/ja\/ \u3067\u306f\u306a\u304f https:\/\/www.example.com\/ja\/ \u3068\u8a18\u8ff0\uff09\n\u2192 \u81ea\u30da\u30fc\u30b8\u306ehreflang\u3092\u7701\u7565\u3059\u308b<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u5730\u57df\u5225\u306b\u5206\u3051\u305f\u9ad8\u5ea6\u306a\u8a2d\u5b9a\u4f8b<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;&lt;!-- \u540c\u3058\u8a00\u8a9e\u3067\u3082\u5730\u57df\uff08\u56fd\uff09\u3092\u5206\u3051\u3066\u8a2d\u5b9a\u3059\u308b\u4f8b --&gt;\n&lt;!-- \u82f1\u8a9e\uff08\u30a2\u30e1\u30ea\u30ab\u5411\u3051\uff09\u3068\u82f1\u8a9e\uff08\u30a4\u30ae\u30ea\u30b9\u5411\u3051\uff09\u3092\u5206\u3051\u308b\u5834\u5408 --&gt;\n&lt;link rel=\"alternate\" hreflang=\"en-US\" href=\"https:\/\/www.example.com\/en-us\/\"&gt;\n&lt;link rel=\"alternate\" hreflang=\"en-GB\" href=\"https:\/\/www.example.com\/en-gb\/\"&gt;\n&lt;link rel=\"alternate\" hreflang=\"ja-JP\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n&lt;link rel=\"alternate\" hreflang=\"zh-CN\" href=\"https:\/\/www.example.com\/zh-cn\/\"&gt;\n&lt;link rel=\"alternate\" hreflang=\"zh-TW\" href=\"https:\/\/www.example.com\/zh-tw\/\"&gt;\n&lt;link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/\"&gt;\n\n&lt;!-- \u4e3b\u8981\u306a\u8a00\u8a9e\u30b3\u30fc\u30c9\u4e00\u89a7 --&gt;\n&lt;!--\nja: \u65e5\u672c\u8a9e          ko: \u97d3\u56fd\u8a9e\nen: \u82f1\u8a9e            fr: \u30d5\u30e9\u30f3\u30b9\u8a9e\nzh-CN: \u4e2d\u56fd\u8a9e\uff08\u7c21\u4f53\u5b57\uff09  de: \u30c9\u30a4\u30c4\u8a9e\nzh-TW: \u4e2d\u56fd\u8a9e\uff08\u7e41\u4f53\u5b57\uff09  es: \u30b9\u30da\u30a4\u30f3\u8a9e\n                   pt-BR: \u30dd\u30eb\u30c8\u30ac\u30eb\u8a9e\uff08\u30d6\u30e9\u30b8\u30eb\uff09\n                   ar: \u30a2\u30e9\u30d3\u30a2\u8a9e\n--&gt;<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067hreflang\u3092\u8a2d\u5b9a\u3059\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u6570\u304c\u591a\u3044\u5834\u5408\u306fHTML\u306ehead\u306b\u500b\u5225\u8a2d\u5b9a\u3059\u308b\u3088\u308a\u3082\u3001XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u306bhreflang\u3092\u307e\u3068\u3081\u3066\u8a18\u8ff0\u3059\u308b\u65b9\u304c\u7ba1\u7406\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;&lt;!-- sitemap.xml - XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067\u306ehreflang\u8a18\u8ff0\u4f8b --&gt;\n&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?&gt;\n&lt;urlset xmlns=\"http:\/\/www.sitemaps.org\/schemas\/sitemap\/0.9\"\n        xmlns:xhtml=\"http:\/\/www.w3.org\/1999\/xhtml\"&gt;\n\n  &lt;!-- \u65e5\u672c\u8a9e\u30db\u30fc\u30e0\u30da\u30fc\u30b8 --&gt;\n  &lt;url&gt;\n    &lt;loc&gt;https:\/\/www.example.com\/ja\/&lt;\/loc&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"ja\" href=\"https:\/\/www.example.com\/ja\/\"\/&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/www.example.com\/en\/\"\/&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\"\/&gt;\n    &lt;lastmod&gt;2026-03-14&lt;\/lastmod&gt;\n    &lt;changefreq&gt;weekly&lt;\/changefreq&gt;\n    &lt;priority&gt;1.0&lt;\/priority&gt;\n  &lt;\/url&gt;\n\n  &lt;!-- \u82f1\u8a9e\u30db\u30fc\u30e0\u30da\u30fc\u30b8\uff08\u540c\u3058hreflang\u306e\u5bfe\u3092\u8a18\u8ff0\uff09 --&gt;\n  &lt;url&gt;\n    &lt;loc&gt;https:\/\/www.example.com\/en\/&lt;\/loc&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"ja\" href=\"https:\/\/www.example.com\/ja\/\"\/&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/www.example.com\/en\/\"\/&gt;\n    &lt;xhtml:link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\"\/&gt;\n    &lt;lastmod&gt;2026-03-14&lt;\/lastmod&gt;\n    &lt;changefreq&gt;weekly&lt;\/changefreq&gt;\n    &lt;priority&gt;1.0&lt;\/priority&gt;\n  &lt;\/url&gt;\n\n&lt;\/urlset&gt;<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">lang\u5c5e\u6027\u3068canonical\u5c5e\u6027\u306e\u8a2d\u5b9a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">lang\u5c5e\u6027<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&gt;&lt;!-- \u65e5\u672c\u8a9e\u30da\u30fc\u30b8 --&gt;\n&lt;html lang=\"ja\"&gt;\n\n&lt;!-- \u82f1\u8a9e\u30da\u30fc\u30b8 --&gt;\n&lt;html lang=\"en\"&gt;\n\n&lt;!-- \u4e2d\u56fd\u8a9e\uff08\u7c21\u4f53\u5b57\uff09\u30da\u30fc\u30b8 --&gt;\n&lt;html lang=\"zh-CN\"&gt;\n\n&lt;!-- \u4e2d\u56fd\u8a9e\uff08\u7e41\u4f53\u5b57\uff09\u30da\u30fc\u30b8 --&gt;\n&lt;html lang=\"zh-TW\"&gt;\n\n&lt;!-- \u30da\u30fc\u30b8\u5185\u306b\u7570\u306a\u308b\u8a00\u8a9e\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u6df7\u5728\u3059\u308b\u5834\u5408 --&gt;\n&lt;p lang=\"en\"&gt;This is an English phrase in a Japanese document.&lt;\/p&gt;<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">canonical\u5c5e\u6027\u3068\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306e\u95a2\u4fc2<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u8a00\u8a9e\u30da\u30fc\u30b8\u3067\u306f\u3001\u5404\u8a00\u8a9e\u7248\u304c\u300c\u81ea\u5206\u81ea\u8eab\u3092canonical\u300d\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u306ecanonical\u306b\u82f1\u8a9e\u30da\u30fc\u30b8\u306eURL\u3092\u8a2d\u5b9a\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u304c\u300c\u91cd\u8907\u30b3\u30f3\u30c6\u30f3\u30c4\u300d\u3068\u307f\u306a\u3055\u308c\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304b\u3089\u5916\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&gt;&lt;!-- \u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u306ehead\u306b\u8a18\u8ff0 --&gt;\n&lt;head&gt;\n  &lt;!-- canonical \u306f\u81ea\u30da\u30fc\u30b8\u306eURL\u3092\u6307\u5b9a\uff08\u4ed6\u8a00\u8a9e\u30da\u30fc\u30b8\u3092\u6307\u3057\u3066\u306f\u3044\u3051\u306a\u3044\uff09 --&gt;\n  &lt;link rel=\"canonical\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n\n  &lt;!-- hreflang\u306f\u5168\u8a00\u8a9e\u3092\u5217\u6319 --&gt;\n  &lt;link rel=\"alternate\" hreflang=\"ja\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n  &lt;link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/www.example.com\/en\/\"&gt;\n  &lt;link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\"&gt;\n&lt;\/head&gt;<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WordPress\u591a\u8a00\u8a9e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u6bd4\u8f03\u30fb\u8a2d\u5b9a<\/h2>\n\n\n<table>\n  <thead>\n    <tr><th>\u30d7\u30e9\u30b0\u30a4\u30f3<\/th><th>\u6599\u91d1<\/th><th>\u7279\u5fb4<\/th><th>\u5411\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9<\/th><\/tr>\n  <\/thead>\n  <tbody>\n    <tr><td><strong>WPML<\/strong><\/td><td>\u6709\u6599\uff08$39\u301c\/\u5e74\uff09<\/td><td>\u6700\u3082\u6a5f\u80fd\u304c\u8c4a\u5bcc\u30fbWooCommerce\u5bfe\u5fdc\u30fb\u591a\u8a00\u8a9eSEO\u3092\u81ea\u52d5\u8a2d\u5b9a<\/td><td>\u5927\u898f\u6a21EC\u30b5\u30a4\u30c8\u30fb\u4f01\u696d\u30b5\u30a4\u30c8<\/td><\/tr>\n    <tr><td><strong>Polylang<\/strong><\/td><td>\u7121\u6599 + \u6709\u6599\u7248\uff08$99\/\u5e74\uff09<\/td><td>\u7121\u6599\u3067\u3082\u57fa\u672c\u6a5f\u80fd\u304c\u5145\u5b9f\u30fbWPML\u4e92\u63db<\/td><td>\u4e2d\u5c0f\u898f\u6a21\u30b5\u30a4\u30c8\u30fb\u30b3\u30b9\u30c8\u91cd\u8996<\/td><\/tr>\n    <tr><td><strong>TranslatePress<\/strong><\/td><td>\u6709\u6599\uff08$79\u301c\/\u5e74\uff09<\/td><td>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3067\u8996\u899a\u7684\u306b\u7ffb\u8a33\u30fbAI\u7ffb\u8a33\u5bfe\u5fdc<\/td><td>\u7ffb\u8a33\u4f5c\u696d\u3092\u52b9\u7387\u5316\u3057\u305f\u3044\u5834\u5408<\/td><\/tr>\n    <tr><td><strong>MultilingualPress<\/strong><\/td><td>\u6709\u6599\uff08\u20ac199\/\u5e74\uff09<\/td><td>WordPress\u30de\u30eb\u30c1\u30b5\u30a4\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5bfe\u5fdc<\/td><td>\u30b5\u30a4\u30c8\u3092\u5b8c\u5168\u306b\u5206\u96e2\u3057\u305f\u3044\u5834\u5408<\/td><\/tr>\n  <\/tbody>\n<\/table>\n\n\n<h3 class=\"wp-block-heading\">Polylang\u306e\u57fa\u672c\u8a2d\u5b9a<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010Polylang \u8a2d\u5b9a\u624b\u9806\u3011\n\n1. \u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30fb\u6709\u52b9\u5316\n   \u2192 \u30d7\u30e9\u30b0\u30a4\u30f3 \u2192 \u65b0\u898f\u8ffd\u52a0 \u2192 \u300cPolylang\u300d\u3067\u691c\u7d22\n\n2. \u8a00\u8a9e\u3092\u8ffd\u52a0\n   \u2192 \u8a00\u8a9e \u2192 \u8a00\u8a9e\u306e\u8ffd\u52a0\n   \u2192 \u300c\u65e5\u672c\u8a9e\uff08Japanese\uff09\u300d\u300cEnglish\u300d\u3092\u8ffd\u52a0\n\n3. URL\u69cb\u9020\u3092\u8a2d\u5b9a\n   \u2192 \u8a00\u8a9e \u2192 \u8a2d\u5b9a \u2192 \u8a00\u8a9eURL\u8a2d\u5b9a\n   \u2192 \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\uff08\/ja\/, \/en\/\uff09\u3092\u63a8\u5968\n\n4. \u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u7ffb\u8a33\n   \u2192 \u6295\u7a3f\/\u56fa\u5b9a\u30da\u30fc\u30b8\u4e00\u89a7\u306e\u53f3\u7aef\u306b\u65d7\u30a2\u30a4\u30b3\u30f3\u304c\u8868\u793a\u3055\u308c\u308b\n   \u2192 \u65d7\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u5404\u8a00\u8a9e\u306e\u7ffb\u8a33\u3092\u4f5c\u6210\n\n5. hreflang\u8a2d\u5b9a\u306e\u78ba\u8a8d\n   \u2192 Polylang\u306f\u81ea\u52d5\u7684\u306bhreflang\u5c5e\u6027\u3092\u51fa\u529b\u3059\u308b\n   \u2192 SEO\u8a2d\u5b9a \u2192 Yoast SEO \u3068\u306e\u9023\u643a\u3067\u3055\u3089\u306b\u8a73\u7d30\u306a\u8a2d\u5b9a\u53ef\u80fd<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Next.js App Router\u3067\u306e\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u5b9f\u88c5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Next.js App Router\u3067\u306ei18n\u5b9f\u88c5<\/h3>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&gt;\/\/ app\/[locale]\/layout.tsx - Next.js App Router \u3067\u306e\u591a\u8a00\u8a9e\u30ec\u30a4\u30a2\u30a6\u30c8\n\nimport { notFound } from 'next\/navigation'\n\nconst locales = ['ja', 'en', 'zh', 'ko'] as const\ntype Locale = typeof locales[number]\n\nexport async function generateStaticParams() {\n  return locales.map(locale =&gt; ({ locale }))\n}\n\nexport default function LocaleLayout({\n  children,\n  params: { locale }\n}: {\n  children: React.ReactNode\n  params: { locale: Locale }\n}) {\n  if (!locales.includes(locale)) notFound()\n\n  return (\n    &lt;html lang={locale}&gt;\n      &lt;head&gt;\n        {\/* hreflang \u30bf\u30b0\u3092\u52d5\u7684\u306b\u51fa\u529b *\/}\n        {locales.map(l =&gt; (\n          &lt;link\n            key={l}\n            rel=\"alternate\"\n            hreflang={l}\n            href={`https:\/\/www.example.com\/${l}\/`}\n          \/&gt;\n        ))}\n        &lt;link rel=\"alternate\" hreflang=\"x-default\" href=\"https:\/\/www.example.com\/ja\/\" \/&gt;\n        &lt;link rel=\"canonical\" href={`https:\/\/www.example.com\/${locale}\/`} \/&gt;\n      &lt;\/head&gt;\n      &lt;body&gt;{children}&lt;\/body&gt;\n    &lt;\/html&gt;\n  )\n}<\/code><\/pre><\/div>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-typescript\" data-lang=\"TypeScript\"><code>&gt;\/\/ middleware.ts - \u8a00\u8a9e\u306e\u81ea\u52d5\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\n\nimport { NextResponse } from 'next\/server'\nimport type { NextRequest } from 'next\/server'\n\nconst locales = ['ja', 'en', 'zh', 'ko']\nconst defaultLocale = 'ja'\n\nfunction getPreferredLocale(request: NextRequest): string {\n  const acceptLanguage = request.headers.get('accept-language') || ''\n\n  \/\/ Accept-Language \u30d8\u30c3\u30c0\u30fc\u304b\u3089\u512a\u5148\u8a00\u8a9e\u3092\u53d6\u5f97\n  const preferredLocales = acceptLanguage\n    .split(',')\n    .map(lang =&gt; lang.split(';')[0].trim().slice(0, 2).toLowerCase())\n\n  return preferredLocales.find(lang =&gt; locales.includes(lang)) || defaultLocale\n}\n\nexport function middleware(request: NextRequest) {\n  const pathname = request.nextUrl.pathname\n\n  \/\/ \u65e2\u306b\u30ed\u30b1\u30fc\u30eb\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u304c\u3042\u308b\u5834\u5408\u306f\u30b9\u30ad\u30c3\u30d7\n  const hasLocale = locales.some(locale =&gt; pathname.startsWith(`\/${locale}\/`) || pathname === `\/${locale}`)\n  if (hasLocale) return NextResponse.next()\n\n  \/\/ \u30eb\u30fc\u30c8\uff08\/\uff09\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9069\u5207\u306a\u8a00\u8a9e\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\n  if (pathname === '\/') {\n    const locale = getPreferredLocale(request)\n    return NextResponse.redirect(new URL(`\/${locale}\/`, request.url))\n  }\n}\n\nexport const config = {\n  matcher: ['\/((?!api|_next|.*\\\\..*).*)'],\n}<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5730\u57df\u5225\u30ad\u30fc\u30ef\u30fc\u30c9\u9078\u5b9a\u3068\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u9055\u3044<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u8a00\u8a9e\u30b5\u30a4\u30c8\u306eSEO\u3067\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u306a\u306e\u304c\u300c\u5730\u57df\u5225\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u30ea\u30b5\u30fc\u30c1\u300d\u3067\u3059\u3002\u65e5\u672c\u8a9e\u3068\u82f1\u8a9e\u3067\u306f\u540c\u3058\u6982\u5ff5\u3067\u3082\u691c\u7d22\u30af\u30a8\u30ea\u304c\u5168\u304f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010\u56fd\u5225\u306e\u4e3b\u8981\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u30b7\u30a7\u30a2\uff082026\u5e74\u63a8\u5b9a\uff09\u3011\n\n\u65e5\u672c:    Google\uff08\u7d0475%\uff09\u3001Yahoo!\uff08\u7d0420%\uff09\u2192 Yahoo!\u306f\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u81ea\u4f53\u306fBing\u3092\u4f7f\u7528\n\u30a2\u30e1\u30ea\u30ab: Google\uff08\u7d0488%\uff09\u3001Bing\uff08\u7d048%\uff09\nEU:      Google\uff08\u7d0490%\uff09\n\u4e2d\u56fd:    \u767e\u5ea6\uff08\u30d0\u30a4\u30c9\u30a5\uff09\uff08\u7d0455%\uff09\u2190 Google\u306fGFW\u3067\u5236\u9650\n\u30ed\u30b7\u30a2:  Yandex\uff08\u7d0450%\uff09\u3001Google\uff08\u7d0445%\uff09\n\u97d3\u56fd:    Google\uff08\u7d0460%\uff09\u3001Naver\uff08\u7d0430%\uff09\n\n\u2192 \u4e2d\u56fd\u5411\u3051\u306b\u306f\u767e\u5ea6\u306eSEO\u5bfe\u7b56\u304c\u5225\u9014\u5fc5\u8981\uff08\u7c21\u4f53\u5b57\u30fb\u4e2d\u56fd\u56fd\u5185\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30fbICP\u53d6\u5f97\uff09\n\u2192 \u30ed\u30b7\u30a2\u5411\u3051\u306b\u306fYandex\u3092\u610f\u8b58\u3057\u305f\u5bfe\u7b56\u304c\u6709\u52b9\uff08\u30bf\u30a4\u30c8\u30eb\u30fb\u30e1\u30bf\u8a18\u8ff0\u30fb\u5916\u90e8\u30ea\u30f3\u30af\u6226\u7565\uff09\n\u2192 \u97d3\u56fd\u5411\u3051\u306b\u306fNaver\u30d6\u30ed\u30b0\u30fb\u30ab\u30d5\u30a7\u3078\u306e\u63b2\u8f09\u3082\u691c\u8a0e<\/code><\/pre><\/div>\n\n<table>\n  <thead>\n    <tr><th>\u30ad\u30fc\u30ef\u30fc\u30c9\u4f8b\uff08\u6982\u5ff5\uff09<\/th><th>\u65e5\u672c\u8a9e<\/th><th>\u82f1\u8a9e\uff08\u7c73\u56fd\uff09<\/th><th>\u82f1\u8a9e\uff08\u82f1\u56fd\uff09<\/th><\/tr>\n  <\/thead>\n  <tbody>\n    <tr><td>\u63a1\u7528\u30b5\u30a4\u30c8<\/td><td>\u300c\u63a1\u7528 \u5fdc\u52df\u300d\u300c\u6c42\u4eba \u30a8\u30f3\u30c8\u30ea\u30fc\u300d<\/td><td>\u300cjobs apply\u300d\u300ccareer opportunities\u300d<\/td><td>\u300cvacancies\u300d\u300crecruitment\u300d<\/td><\/tr>\n    <tr><td>\u30cd\u30c3\u30c8\u30b7\u30e7\u30c3\u30d7<\/td><td>\u300c\u901a\u8ca9\u300d\u300c\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u300d<\/td><td>\u300conline store\u300d\u300ce-commerce\u300d<\/td><td>\u300conline shop\u300d\u300cshopping\u300d<\/td><\/tr>\n    <tr><td>\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3<\/td><td>\u300c\u30b9\u30de\u30db\u300d\u300c\u643a\u5e2f\u300d<\/td><td>\u300csmartphone\u300d\u300ccell phone\u300d<\/td><td>\u300csmartphone\u300d\u300cmobile phone\u300d<\/td><\/tr>\n  <\/tbody>\n<\/table>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u6226\u7565<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u306f\u300c\u7ffb\u8a33\u300d\u3088\u308a\u3082\u5e45\u5e83\u3044\u6982\u5ff5\u3067\u3059\u3002\u8a00\u8a9e\u3092\u5909\u63db\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u5e02\u5834\u306e\u6587\u5316\u30fb\u6163\u7fd2\u30fb\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u30b3\u30f3\u30c6\u30f3\u30c4\u5168\u4f53\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010\u7ffb\u8a33\u3068\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u306e\u9055\u3044\u3011\n\n\u7ffb\u8a33\uff08Translation\uff09\uff1a\u8a00\u8a9e\u3092\u5909\u63db\u3059\u308b\n\u2192 \u65e5\u672c\u8a9e\u306e\u6587\u7ae0\u3092\u82f1\u8a9e\u306b\u5909\u63db\u3059\u308b\n\u2192 \u6a5f\u68b0\u7ffb\u8a33\u3067\u3082\u53ef\u80fd\uff08\u7cbe\u5ea6\u306f\u52a3\u308b\uff09\n\n\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\uff08Localization\uff09\uff1a\u6587\u5316\u30fb\u5e02\u5834\u306b\u6700\u9069\u5316\u3059\u308b\n\u2192 \u901a\u8ca8\u30fb\u65e5\u4ed8\u30fb\u5358\u4f4d\u306e\u5909\u63db\uff08\u5186\u2192\u30c9\u30eb\u3001\u5e74\u6708\u65e5\u2192\u6708\/\u65e5\/\u5e74\uff09\n\u2192 \u8272\u30fb\u30c7\u30b6\u30a4\u30f3\u306e\u8abf\u6574\uff08\u767d\u304c\u5f14\u610f\u3092\u793a\u3059\u6587\u5316 vs \u6176\u4e8b\u3092\u793a\u3059\u6587\u5316\uff09\n\u2192 \u753b\u50cf\u306e\u5dee\u3057\u66ff\u3048\uff08\u30e2\u30c7\u30eb\u30fb\u98df\u4e8b\u30fb\u30e9\u30a4\u30d5\u30b9\u30bf\u30a4\u30eb\u306e\u6587\u5316\u7684\u9069\u5408\uff09\n\u2192 \u4e8b\u4f8b\u30fb\u5b9f\u7e3e\u306e\u5dee\u3057\u66ff\u3048\uff08\u65e5\u672c\u306e\u6709\u540d\u4f01\u696d\u540d \u2192 \u73fe\u5730\u306e\u6709\u540d\u4f01\u696d\u540d\uff09\n\u2192 \u4fa1\u683c\u30fb\u652f\u6255\u3044\u65b9\u6cd5\u306e\u5909\u66f4\uff08\u30b3\u30f3\u30d3\u30cb\u6255\u3044 \u2192 PayPal \/ \u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\uff09\n\u2192 SNS\u306e\u5909\u66f4\uff08Twitter\/X \u2192 Instagram\uff08\u7c73\uff09\/ LINE\uff08\u65e5\u30fb\u97d3\uff09\uff09\n\u2192 \u30b5\u30dd\u30fc\u30c8\u5bfe\u5fdc\u306e\u8a00\u8a9e\u30fb\u6642\u9593\u5e2f\u306e\u5909\u66f4<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">hreflang\u306e\u3088\u304f\u3042\u308b\u8a2d\u5b9a\u30df\u30b9\u3068Google Search Console\u3067\u306e\u78ba\u8a8d<\/h2>\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-none\" data-lang=\"Code\"><code>&gt;\u3010Google Search Console \u3067\u306e\u78ba\u8a8d\u65b9\u6cd5\u3011\n\n1. Search Console\uff08search.google.com\/search-console\uff09\u3092\u958b\u304f\n2. \u5de6\u30e1\u30cb\u30e5\u30fc\u306e\u300c\u56fd\u969b\u5316\u30bf\u30fc\u30b2\u30c6\u30a3\u30f3\u30b0\u300d\u3092\u9078\u629e\n3. \u300c\u8a00\u8a9e\u300d\u30bf\u30d6\u3067hreflang\u306e\u8a2d\u5b9a\u30a8\u30e9\u30fc\u3092\u78ba\u8a8d\n\n\u4e3b\u306a\u30a8\u30e9\u30fc\u7a2e\u5225\uff1a\n\u2192 \"hreflang: Alternate URL return error\"\n   \u2192 hreflang\u306b\u6307\u5b9a\u3057\u305fURL\u304c404\u7b49\u306e\u30a8\u30e9\u30fc\u3092\u8fd4\u3057\u3066\u3044\u308b\n\n\u2192 \"Missing alternate page\"\n   \u2192 \u30da\u30fc\u30b8A\u304c\u30da\u30fc\u30b8B\u3092hreflang\u3067\u53c2\u7167\u3057\u3066\u3044\u308b\u304c\u3001\n     \u30da\u30fc\u30b8B\u306f\u30da\u30fc\u30b8A\u3092\u53c2\u7167\u3057\u3066\u3044\u306a\u3044\uff08\u76f8\u4e92\u53c2\u7167\u4e0d\u8db3\uff09\n\n\u2192 \"No return tag\"\n   \u2192 hreflang\u3067\u53c2\u7167\u3055\u308c\u3066\u3044\u308b\u30da\u30fc\u30b8\u304c\u53c2\u7167\u5148\u30da\u30fc\u30b8\u3092\u53c2\u7167\u3057\u3066\u3044\u306a\u3044<\/code><\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q1. XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067hreflang\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u3067\u304d\u307e\u3059\u3002\u5404URL\u306e <code>&lt;url&gt;<\/code> \u30d6\u30ed\u30c3\u30af\u5185\u306b <code>&lt;xhtml:link rel=\"alternate\" hreflang=\"...\" href=\"...\"\/&gt;<\/code> \u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u30da\u30fc\u30b8\u6570\u304c\u591a\u3044\u5834\u5408\u306f\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3067\u307e\u3068\u3081\u3066\u7ba1\u7406\u3059\u308b\u65b9\u6cd5\u304c\u52b9\u7387\u7684\u3067\u3059\u3002HTML\u306ehead\u3068\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u306e\u4e21\u65b9\u306b\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u3069\u3061\u3089\u304b1\u3064\u3067\u5341\u5206\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q2. \u81ea\u52d5\u7ffb\u8a33\uff08Google\u7ffb\u8a33API\u7b49\uff09\u3067\u751f\u6210\u3057\u305f\u30da\u30fc\u30b8\u306fNG\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> <strong>\u81ea\u52d5\u7ffb\u8a33\u30b3\u30f3\u30c6\u30f3\u30c4\u306fGoogle\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u9055\u53cd\uff08\u81ea\u52d5\u751f\u6210\u30da\u30fc\u30b8\uff09\u306b\u3042\u305f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u7cbe\u5ea6\u306e\u4f4e\u3044\u81ea\u52d5\u7ffb\u8a33\u306f\u30b9\u30d1\u30e0\u3068\u307f\u306a\u3055\u308c\u30da\u30ca\u30eb\u30c6\u30a3\u3092\u53d7\u3051\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u7ffb\u8a33\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4f7f\u3046\u5834\u5408\u306f\u5fc5\u305a\u4eba\u9593\u306b\u3088\u308b\u78ba\u8a8d\u30fb\u4fee\u6b63\u3092\u7d4c\u3066\u304b\u3089\u516c\u958b\u3057\u3066\u304f\u3060\u3055\u3044\u3002ChatGPT\u7b49\u306eAI\u7ffb\u8a33\u3092\u4f7f\u3046\u5834\u5408\u3082\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u3088\u308b\u30ec\u30d3\u30e5\u30fc\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q3. hreflang\u306fBing\u3084Yahoo!\u3067\u3082\u6709\u52b9\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> hreflang\u306fGoogle\u3068Yandex\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002Bing\u306fAccept-Language\u30d8\u30c3\u30c0\u30fc\u3084HTML lang\u5c5e\u6027\u3067\u8a00\u8a9e\u3092\u5224\u65ad\u3057\u3066\u304a\u308a\u3001\u72ec\u81ea\u306ehreflang\u76f8\u5f53\u306e\u4ed5\u7d44\u307f\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002Yahoo!\uff08\u65e5\u672c\uff09\u306fBing\u306e\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3092\u4f7f\u3063\u3066\u3044\u308b\u305f\u3081\u3001Bing\u5411\u3051\u306e\u5bfe\u7b56\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u4e16\u754c\u898f\u6a21\u3067\u306eSEO\u3092\u8003\u3048\u308b\u306a\u3089\u3001hreflang + HTML lang\u5c5e\u6027 + \u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4e3b\u8981\u306a\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u5168\u3066\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q4. \u7ffb\u8a33\u30da\u30fc\u30b8\u304c\u5c11\u306a\u3044\u6bb5\u968e\u3067\u3082hreflang\u3092\u8a2d\u5b9a\u3057\u305f\u65b9\u304c\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> \u306f\u3044\u3001\u7ffb\u8a33\u6e08\u307f\u306e\u30da\u30fc\u30b8\u304c\u5c11\u306a\u304f\u3066\u3082\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u307e\u305a\u91cd\u8981\u306a\u30da\u30fc\u30b8\uff08\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u30fb\u4e3b\u8981\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\uff09\u304b\u3089\u7ffb\u8a33\u3057\u3066\u8a2d\u5b9a\u3092\u59cb\u3081\u3066\u3001\u5f90\u3005\u306b\u5c55\u958b\u3057\u3066\u3044\u304f\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u30da\u30fc\u30b8\u306f\u5bfe\u5fdc\u8a00\u8a9e\u306a\u3057\u3068\u3057\u3066Google\u304c\u5224\u65ad\u3059\u308b\u306e\u3067\u3001\u8a2d\u5b9a\u304c\u3042\u308b\u30da\u30fc\u30b8\u306f\u6b63\u3057\u304f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q5. hreflang\u306e\u8a2d\u5b9a\u306b\u8aa4\u308a\u304c\u3042\u308b\u3068\u30da\u30ca\u30eb\u30c6\u30a3\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.<\/strong> hreflang\u306e\u8a2d\u5b9a\u30df\u30b9\u306b\u3088\u3063\u3066Google\u304b\u3089\u30da\u30ca\u30eb\u30c6\u30a3\u304c\u79d1\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057<strong>\u8a2d\u5b9a\u304c\u4e0d\u5b8c\u5168\u3060\u3068hreflang\u5c5e\u6027\u304c\u7121\u8996\u3055\u308c\u308b<\/strong>\u305f\u3081\u3001\u9593\u9055\u3063\u305f\u8a00\u8a9e\u306e\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u3068\u3044\u3046\u554f\u984c\u304c\u8d77\u3053\u308a\u307e\u3059\u3002\u7279\u306b\u300c\u76f8\u4e92\u53c2\u7167\u304c\u4e0d\u5b8c\u5168\uff08\u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u304c\u82f1\u8a9e\u30da\u30fc\u30b8\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u304c\u3001\u82f1\u8a9e\u30da\u30fc\u30b8\u304c\u65e5\u672c\u8a9e\u30da\u30fc\u30b8\u3092\u53c2\u7167\u3057\u3066\u3044\u306a\u3044\uff09\u300d\u3068\u3044\u3046\u72b6\u614b\u304c\u6700\u3082\u591a\u3044\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002Google Search Console\u306e\u300c\u56fd\u969b\u5316\u30bf\u30fc\u30b2\u30c6\u30a3\u30f3\u30b0\u300d\u3067\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n  <li><strong>URL\u69cb\u9020<\/strong>\uff1a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u578b\uff08\/ja\/ \/en\/\uff09\u304c\u6700\u3082SEO\u8a55\u4fa1\u3092\u96c6\u7d04\u3057\u3084\u3059\u304f\u3001\u5c0f\u301c\u4e2d\u898f\u6a21\u30b5\u30a4\u30c8\u306b\u6700\u9069\u3002<\/li>\n  <li><strong>hreflang\u5c5e\u6027<\/strong>\uff1a\u5168\u8a00\u8a9e\u30da\u30fc\u30b8\u306b\u76f8\u4e92\u30ea\u30f3\u30af\u3067\u8a18\u8ff0\u3002\u81ea\u30da\u30fc\u30b8\u30fbx-default\u3082\u5fc5\u305a\u542b\u3081\u308b\u3002\u7d76\u5bfeURL\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n  <li><strong>XML\u30b5\u30a4\u30c8\u30de\u30c3\u30d7<\/strong>\uff1a\u30da\u30fc\u30b8\u6570\u304c\u591a\u3044\u5834\u5408\u306f\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u306bhreflang\u3092\u307e\u3068\u3081\u3066\u8a18\u8ff0\u3059\u308b\u65b9\u304c\u7ba1\u7406\u3057\u3084\u3059\u3044\u3002<\/li>\n  <li><strong>lang\u5c5e\u6027\u3068canonical<\/strong>\uff1a<code>&lt;html lang=\"ja\"&gt;<\/code>\u7b49\u306e\u8a00\u8a9e\u6307\u5b9a\u3068\u3001\u81ea\u30da\u30fc\u30b8\u3078\u306ecanonical\u3092\u5fc5\u305a\u8a2d\u5b9a\u3059\u308b\u3002<\/li>\n  <li><strong>WordPress\u5b9f\u88c5<\/strong>\uff1aPolylang\u3084WPML\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u81ea\u52d5\u7684\u306bhreflang\u30fb\u30b5\u30a4\u30c8\u30de\u30c3\u30d7\u3092\u7ba1\u7406\u3067\u304d\u308b\u3002<\/li>\n  <li><strong>Next.js\u5b9f\u88c5<\/strong>\uff1aApp Router\u306e<code>[locale]<\/code>\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30bb\u30b0\u30e1\u30f3\u30c8\u3067\u591a\u8a00\u8a9e\u5bfe\u5fdc\u3002Middleware\u3067\u8a00\u8a9e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3002<\/li>\n  <li><strong>\u7ffb\u8a33\u306e\u8cea<\/strong>\uff1a\u81ea\u52d5\u7ffb\u8a33\u306f\u907f\u3051\u3001\u4eba\u9593\u306b\u3088\u308b\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u304c\u4e0d\u53ef\u6b20\u3002<\/li>\n  <li><strong>\u5730\u57df\u5225\u5bfe\u7b56<\/strong>\uff1a\u4e2d\u56fd\u306f\u767e\u5ea6\u30fb\u30ed\u30b7\u30a2\u306fYandex\u306a\u3069\u3001\u5730\u57df\u3054\u3068\u306e\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u30b7\u30a7\u30a2\u3092\u8003\u616e\u3059\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker 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