{"id":12357,"date":"2022-07-06T06:30:24","date_gmt":"2022-07-05T21:30:24","guid":{"rendered":"https:\/\/www.suzukikenichi.com\/blog\/?p=12357"},"modified":"2022-07-06T06:14:53","modified_gmt":"2022-07-05T21:14:53","slug":"how-to-inject-a-rel-canonical-link-tag-with-javascript-properly","status":"publish","type":"post","link":"https:\/\/www.suzukikenichi.com\/blog\/how-to-inject-a-rel-canonical-link-tag-with-javascript-properly\/","title":{"rendered":"JavaScript\u3092\u4f7f\u3063\u3066rel=canonical\u30bf\u30b0\u3092\u9069\u5207\u306b\u633f\u5165\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p class=\"p20-b al-r small\">[\u30ec\u30d9\u30eb: \u4e0a\u7d1a]<\/p>\n<p>JavaScript \u3092\u4f7f\u3063\u3066 <code>rel=\"canonical\"<\/code> \u30bf\u30b0\u3092<a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/javascript-seo-basics?hl=en#properly-inject-canonical-links\">\u9069\u5207\u306b\u633f\u5165\u3059\u308b\u65b9\u6cd5<\/a>\u304c <a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/javascript-seo-basics\">JavaScript SEO \u3092\u89e3\u8aac\u3059\u308b\u6280\u8853\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u306b\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p class=\"p60-b small\">&#x1f4dd;\u3059\u305a\u304d\u6ce8: \u3053\u306e\u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u308b\u6642\u70b9\u3067\u306f\u3001<a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/javascript-seo-basics?hl=ja#properly-inject-canonical-links\">\u65e5\u672c\u8a9e\u30da\u30fc\u30b8<\/a>\u306f\u672a\u66f4\u65b0\u3002<\/p>\n<h2>JavaScript \u3067 <code>rel=\"canonical\"<\/code> \u3092\u633f\u5165<\/h2>\n<p>JavaScript \u306b\u3088\u3063\u3066 <code>rel=\"canonical\"<\/code> \u3092\u633f\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\u6b63\u3057\u3044\u65b9\u6cd5\u3067\u5b9f\u88c5\u3059\u308c\u3070\u3001Google \u306f\u304d\u3061\u3093\u3068\u8a8d\u8b58\u3001\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30fc\u30c9\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u306f\u6319\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre style=\"overflow-x: auto\"><code class=\"green\">fetch('\/api\/cats\/' + id)\r\n  .then(function (response) { return response.json(); })\r\n  .then(function (cat) {\r\n    \/\/ creates a canonical link tag and dynamically builds the URL\r\n    \/\/ e.g. https:\/\/example.com\/cats\/simba\r\n    const linkTag = document.createElement('link');\r\n    linkTag.setAttribute('rel', 'canonical');\r\n    linkTag.href = 'https:\/\/example.com\/cats\/' + cat.urlFriendlyName;\r\n    document.head.appendChild(linkTag);\r\n  });<\/code><\/pre>\n<p class=\"p40-b\">\u7279\u306b\u554f\u984c\u304c\u306a\u3051\u308c\u3070\u3001\u30b5\u30f3\u30d7\u30eb\u3092\u5fdc\u7528\u3059\u308c\u3070\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<h2><code>rel=\"canonical\"<\/code> \u3092 JS \u3067\u633f\u5165\u3059\u308b\u3068\u304d\u306e\u6ce8\u610f\u70b9<\/h2>\n<p><code>rel=\"canonical\"<\/code> \u3092 JavaScript \u3067\u633f\u5165\u53ef\u80fd\u3067\u3059\u304c\u3001\u57fa\u672c\u7684\u306b\u306f<strong>\u63a8\u5968\u3055\u308c\u307e\u305b\u3093<\/strong>\u3002<br \/>\u9069\u5207\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u60f3\u5b9a\u3057\u3066\u3044\u306a\u3044\u7d50\u679c\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001\u6b21\u306e\u3088\u3046\u306a\u9593\u9055\u3044\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8907\u6570\u306e <code>rel=\"canonical\"<\/code><\/strong>: <code>rel=\"canonical\"<\/code> \u306f\u30da\u30fc\u30b8\u306b 1 \u3064\u3060\u3051\u3067\u3059\u3002\u305d\u306e\u30da\u30fc\u30b8\u306b <code>rel=\"canonical\"<\/code> \u304c\u3082\u3068\u3082\u3068\u5b58\u5728\u3057\u3001JavaScript \u306b\u3088\u3063\u3066\u3055\u3089\u306b\u8ffd\u52a0\u3057\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306f\u3001\u8907\u6570\u306e <code>rel=\"canonical\"<\/code> \u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u5185\u5bb9\u304c\u4e0d\u4e00\u81f4\u3060\u3068\u3069\u3061\u3089\u304c\u9069\u7528\u3055\u308c\u308b\u304b\u3092\u4e88\u671f\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u65e2\u5b58\u306e <code>rel=\"canonical\"<\/code> \u3092\u7f6e\u304d\u63db\u3048\u308b<\/strong>: <code>rel=\"canonical\"<\/code> \u304c 1 \u3064\u3060\u3051\u3067\u3042\u3063\u3066\u3082\u3001\u65e2\u5b58\u306e <code>rel=\"canonical\"<\/code> \u3092 JavaScript \u304c\u751f\u6210\u3057\u305f <code>rel=\"canonical\"<\/code> \u3068\u7f6e\u304d\u63db\u3048\u308b\u5834\u5408\u3082\u8981\u6ce8\u610f\u3067\u3059\u3002\u7d14\u7c8b\u306a HTML \u306e\u51e6\u7406\u3068\u3001JavaScript \u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u5f8c\u306e\u51e6\u7406\u306f<a href=\"https:\/\/developers.google.com\/search\/docs\/advanced\/javascript\/javascript-seo-basics#properly-inject-canonical-links\">\u5225\u30d7\u30ed\u30bb\u30b9<\/a>\u3067\u3059\u3002JavaScript \u306b\u3088\u308b <code>rel=\"canonical\"<\/code> \u304c\u6700\u7d42\u7684\u306b\u9069\u7528\u3055\u308c\u308b\u3068\u3057\u3066\u3082\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u51e6\u7406\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306f\u5148\u306b\u5b58\u5728\u3057\u3066\u3044\u305f <code>rel=\"canonical\"<\/code> \u304c\u9069\u7528\u3055\u308c\u3066\u3057\u307e\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p class=\"p60-t\"><code>rel=\"canonical\"<\/code> \u306f\u521d\u3081\u304b\u3089 HTML \u306b\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u3057\u3066\u304a\u304f\u306e\u304c\u7406\u60f3\u3067\u3059\u3002<br \/>\u305d\u308c\u3067\u3082\u3001\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308c\u3070 JavaScript \u3067\u306e\u633f\u5165\u3067\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<br \/>JavaScript \u3092\u5229\u7528\u3059\u308b\u969b\u306f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3088\u304f\u8aad\u3093\u3067\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript \u3092\u4f7f\u3063\u3066 rel=canonical \u30bf\u30b0\u3092\u9069\u5207\u306b\u633f\u5165\u3059\u308b\u65b9\u6cd5\u304c JavaScript SEO \u3092\u89e3\u8aac\u3059\u308b\u6280\u8853\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u8ffd\u52a0\u3055\u308c\u305f\u3002<\/p>\n","protected":false},"author":1,"featured_media":12358,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[578,614],"class_list":["post-12357","post","type-post","status-publish","format-standard","has-post-thumbnail","category-google-seo","tag-javascript","tag-rel-canonical"],"_links":{"self":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/12357","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/comments?post=12357"}],"version-history":[{"count":0,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/posts\/12357\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media\/12358"}],"wp:attachment":[{"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/media?parent=12357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/categories?post=12357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suzukikenichi.com\/blog\/wp-json\/wp\/v2\/tags?post=12357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}