{"id":22516,"date":"2019-02-24T09:41:51","date_gmt":"2019-02-24T17:41:51","guid":{"rendered":"https:\/\/kinsta.com\/?p=8054"},"modified":"2025-12-11T02:18:49","modified_gmt":"2025-12-10T17:18:49","slug":"free-ssl-certificate","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/free-ssl-certificate\/","title":{"rendered":"Kinsta\u306e\u7121\u6599Cloudflare SSL\u8a3c\u660e\u66f8\u3068\u306f\uff1f\u4ed5\u7d44\u307f\u3068\u30e1\u30ea\u30c3\u30c8\u89e3\u8aac"},"content":{"rendered":"<p>Kinsta\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u304a\u5ba2\u69d8\u306b<a href=\"https:\/\/kinsta.com\/jp\/cloudflare-integration\/\">Cloudflare\u7d71\u5408\u6a5f\u80fd<\/a>\u3092\u6a19\u6e96\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9SSL\u8a3c\u660e\u66f8\u304c\u542b\u307e\u308c\u3066\u3001\u304a\u5ba2\u69d8\u306e\u3059\u3079\u3066\u306eWordPress\u30b5\u30a4\u30c8\u306b\u81ea\u52d5\u3067\u5c0e\u5165\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001HTTPS\u306e\u91cd\u8981\u6027\u3001\u305d\u3057\u3066Kinsta\u3067\u52b9\u7387\u5316\u3055\u308c\u308bSSL\u8a3c\u660e\u66f8\u306e\u7ba1\u7406\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>Kinsta\u306e\u7121\u6599Cloudflare SSL\u8a3c\u660e\u66f8\u3068\u306f<\/h2>\n<p>Kinsta\u306e\u304a\u5ba2\u69d8\u306f\u3001Cloudflare\u7d71\u5408\u306b\u3088\u308a\u3001\u8ffd\u52a0\u6599\u91d1\u306a\u3057\u3067Cloudflare\u306eSSL\u8a3c\u660e\u66f8\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002\u8a3c\u660e\u66f8\u30ad\u30fc\u3084\u79d8\u5bc6\u9375\u306e\u53d6\u5f97\u3001 \u4e2d\u9593\u8a3c\u660e\u66f8\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3001CSR\u306e\u751f\u6210\u3001SSL\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u3044\u3063\u305f\u8907\u96d1\u3067\u308f\u304b\u308a\u306b\u304f\u3044\u4f5c\u696d\u3092\u884c\u3046\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>Kinsta\u3067<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/wordpress-domains\/\">\u30c9\u30e1\u30a4\u30f3<\/a>\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u81ea\u52d5\u7684\u306bSSL\u304c\u6a5f\u80fd\u3057\u59cb\u3081\u307e\u3059\u3002Kinsta\u306eSSL\u8a3c\u660e\u66f8\u306f\u3001\u9ad8\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u8a87\u308bCloudflare\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002Cloudflare\u306f\u4e16\u754c\u6709\u6570\u306e\u30a6\u30a7\u30d6\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9\u3067\u3042\u308a\u3001\u4e16\u754c\u4e2d\u306e\u4f55\u767e\u4e07\u3082\u306e\u30b5\u30a4\u30c8\u306eSSL\u7d42\u7aef\uff08SSL Termination\uff09\u3092\u51e6\u7406\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8ffd\u52a0\u6599\u91d1\u3067\u63d0\u4f9b\u3055\u308c\u308bSSL\u8a3c\u660e\u66f8\u3067\u3042\u3063\u3066\u3082\u3001\u5b89\u5168\u9762\u3067\u52a3\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e16\u754c\u4e2d\u306e\u4e3b\u8981\u306a\u91d1\u878d\u6a5f\u95a2\u3084\u653f\u5e9c\u6a5f\u95a2\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u540c\u3058\u3001\u30bb\u30ad\u30e5\u30a2\u306a256\u30d3\u30c3\u30c8\u6697\u53f7\u5316\uff08SHA256\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u81ea\u52d5\u3067\u66f4\u65b0\u3055\u308c\u308b\u305f\u3081\u3001\u6709\u52b9\u671f\u9650\u5207\u308c\u306b\u3088\u308b\u30b5\u30a4\u30c8\u30c0\u30a6\u30f3\u306e\u5fc3\u914d\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>Cloudflare\u306eSSL\u8a3c\u660e\u66f8\u306b\u306f\u3001OV\uff08\u7d44\u7e54\u8a8d\u8a3c\uff09\u3084 EV\uff08\u62e1\u5f35\u8a8d\u8a3c\uff09\u306e\u6a5f\u80fd\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u8a3c\u660e\u66f8\u306b\u306f\u4fdd\u8a3c\u304c\u4ed8\u5e2f\u305b\u305a\u3001SSL\u3067\u4fdd\u8b77\u3055\u308c\u305f\u30b5\u30a4\u30c8\u4e0a\u3067\u30e6\u30fc\u30b6\u30fc\u304c\u652f\u6255\u3044\u60c5\u5831\u3092\u9001\u4fe1\u3057\u305f\u969b\u306e\u91d1\u92ad\u7684\u640d\u5931\u3092\u88dc\u511f\u3059\u308b\u4ed5\u7d44\u307f\u306f\u63d0\u4f9b\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>OV \u3084 EV \u306e SSL \u8a3c\u660e\u66f8\u306f\u30cb\u30c3\u30c1\u306a\u88fd\u54c1\u3067\u3042\u308a\u3001\u8cfc\u5165\u624b\u7d9a\u304d\u306b\u4eba\u306b\u3088\u308b\u5be9\u67fb\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u7279\u5b9a\u306e\u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306bOV\u307e\u305f\u306fEV\u8a3c\u660e\u66f8\u304c\u5fc5\u8981\u306a<a href=\"https:\/\/kinsta.com\/jp\/wordpress-hosting\/enterprise\/\">\u4f01\u696d<\/a>\u306e\u304a\u5ba2\u69d8\u306f\u3001\u5916\u90e8\u306e\u767a\u884c\u5143\u304b\u3089\u8cfc\u5165\u3057\u3001<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/wordpress-domains\/wordpress-ssl-certificates\/#option-2--install-custom-ssl-certificate\">\u72ec\u81eaSSL\u8a3c\u660e\u66f8\u3068\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Kinsta\u304c\u63d0\u4f9b\u3059\u308bCloudflare SSL\u8a3c\u660e\u66f8\u306f\u3001\u30eb\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\u3068\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u52a0\u3048\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30c9\u30e1\u30a4\u30f3\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/wildcard-ssl\/\">\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9SSL<\/a>\u306f\u3001\u4efb\u610f\u306e\u6570\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-subdomain\/\">\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3<\/a>\uff08*.domain.com\u306a\u3069\uff09\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u591a\u6570\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u6301\u3064\u30d3\u30b8\u30cd\u30b9\u3084<a href=\"https:\/\/kinsta.com\/jp\/wordpress-hosting\/education\/\">\u6559\u80b2\u6a5f\u95a2\u306e\u30b5\u30a4\u30c8<\/a>\u306b\u7279\u306b\u6709\u7528\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u3068\u305d\u306e\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3066\u5358\u4e00\u306e\u8a3c\u660e\u66f8\u3068\u9375\u30da\u30a2\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001HTTPS\u306e\u5c55\u958b\u304c\u5927\u5e45\u306b\u7c21\u7d20\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>HTTPS\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>SSL\u8a3c\u660e\u66f8\u3092\u5c0e\u5165\u3057\u3001HTTPS\u63a5\u7d9a\u3067WordPress\u30b5\u30a4\u30c8\u3092\u904b\u7528\u3059\u308b\u3053\u3068\u306b\u306f\u6570\u3005\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u304c\u9ad8\u307e\u3063\u3066\u3044\u308b\u8fd1\u5e74\u3067\u306f\u3001SSL\u306e\u5c0e\u5165\u306f\u3082\u306f\u3084\u4efb\u610f\u3067\u306f\u306a\u304f\u5fc5\u9808\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30c7\u30fc\u30bf\u304c\u6697\u53f7\u5316\u3055\u308c\u308b\u3053\u3068\u3067\u5b89\u5168\u6027\u304c\u5411\u4e0a\u3002\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u304c\u305d\u306e\u307e\u307e\u9001\u53d7\u4fe1\u3055\u308c\u308b\u3053\u3068\u304c\u306a\u3044\u3002\u3053\u308c\u306fEC\u30b5\u30a4\u30c8\u3067\u306f\u3082\u3061\u308d\u3093\u3001WordPress\u30b5\u30a4\u30c8\u3078\u306e\u30ed\u30b0\u30a4\u30f3\u6642\u306b\u3082\u91cd\u8981\u3002<\/li>\n<li>Google\u306f\u3001HTTPS\u63a5\u7d9a\u3078\u306e\u5bfe\u5fdc\u306e\u6709\u7121\u306f<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-seo\/#30-install-an-ssl-certificate\">\u691c\u7d22\u8868\u793a\u9806\u4f4d\u306e\u8981\u56e0\u306e1\u3064<\/a>\u3067\u3042\u308b\u3053\u3068\u3092\u516c\u5f0f\u306b\u767a\u8868\u3057\u3066\u3044\u308b\u3002<\/li>\n<li>tune\u30a2\u30a4\u30b3\u30f3\uff08\u4ee5\u524d\u306f\u7dd1\u8272\u306e\u5357\u4eac\u9320\u30de\u30fc\u30af\uff09\u306f\u8a2a\u554f\u8005\u306e\u4fe1\u983c\u3068\u4fe1\u7528\u3092\u7bc9\u304f\u306e\u306b\u52b9\u679c\u7684\u3002<\/li>\n<li><a href=\"https:\/\/security.googleblog.com\/2016\/09\/moving-towards-more-secure-web.html\">Chrome\u306e\u8b66\u544a<\/a>\u3067\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u3092\u6271\u3046HTTP\u30da\u30fc\u30b8\u306f\u5b89\u5168\u3067\u306a\u3044\u3068\u5224\u65ad\u3055\u308c\u308b\u3002<\/li>\n<li>\u3088\u308a\u6b63\u78ba\u306areferral\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3067\u304d\u308b\u3002<a href=\"https:\/\/kinsta.com\/blog\/how-to-use-google-analytics\/\">Google \u30a2\u30ca\u30ea\u30c6\u30a3\u30af\u30b9<\/a>\u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067HTTPS\u304b\u3089HTTP\u3078\u306e\u53c2\u7167\u30c7\u30fc\u30bf\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3002<\/li>\n<li>SSL\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3057\u3001HTTPS\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u3067\u3001<a href=\"https:\/\/kinsta.com\/jp\/learn\/what-is-http2\/\">HTTP\/2<\/a>\u306e\u6069\u6075\u3092\u53d7\u3051\u3001\u3088\u308a\u826f\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u53ef\u80fd\uff08Kinsta\u3067\u306f\u3001Cloudflare\u7d71\u5408\u306b\u3088\u308a<a href=\"https:\/\/kinsta.com\/jp\/blog\/http3\/\">HTTP\/3<\/a>\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3055\u3089\u306b\u512a\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\uff09\u3002<\/li>\n<\/ul>\n<h2>WordPress\u30b5\u30a4\u30c8\u5411\u3051\u7121\u6599SSL\u8a3c\u660e\u66f8<\/h2>\n<p>WordPress\u30b5\u30a4\u30c8\u3092\u904b\u55b6\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067SSL\u8a3c\u660e\u66f8\u304c\u7121\u6599\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u30022026\u5e74\u73fe\u5728\u3067\u3082SSL\u8a3c\u660e\u66f8\u3092\u63d0\u4f9b\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/wordpress-migrations\/migrating-to-kinsta\/#request-a-free-basic-migration\">\u30b5\u30fc\u30d0\u30fc\u306e\u5207\u308a\u66ff\u3048<\/a>\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u591a\u304f\u306eWordPress\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001SSL\u8a3c\u660e\u66f8\u306e\u751f\u6210\u306b<a href=\"https:\/\/letsencrypt.org\/\">Let&#8217;s Encrypt<\/a>\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002Let\u2019s Encrypt\u306f\u30012016\u5e744\u6708\u306b\u6b63\u5f0f\u306b\u516c\u958b\u3055\u308c\u305f\u3001\u7121\u6599\u3067\u5229\u7528\u3067\u304d\u308b\u81ea\u52d5\u5316\u3055\u308c\u305f\u8a8d\u8a3c\u5c40\uff08CA\uff09\u3067\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u30a6\u30a7\u30d6\u5168\u4f53\u3092\u6697\u53f7\u5316\u3057\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5c0a\u91cd\u3059\u308b\u74b0\u5883\u306e\u69cb\u7bc9\u3092\u76ee\u6a19\u306b\u30012012\u5e74\u306bMozilla\u306e\u793e\u54e12\u540d\u304c\u7acb\u3061\u4e0a\u3052\u305f\u306e\u304c\u59cb\u307e\u308a\u3067\u3059\u3002<\/p>\n<p>Google\u306f\u8fd1\u5e74\u3001\u3042\u3089\u3086\u308b\u9762\u3067HTTPS\u3092\u5f37\u304f\u63a8\u9032\u3057\u3066\u304a\u308a\u3001Let&#8217;s Encrypt\u306f\u696d\u754c\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>2026\u5e74\u73fe\u5728\u3001Let&#8217;s Encrypt\u306e\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u306f2\u51045,000\u4e07\u3092\u8d85\u3048\u3066\u3044\u307e\u3059\u3002WordPress\u30b5\u30a4\u30c8\u306bLet&#8217;s Encrypt\u306e\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u306f\u3001\u307e\u305a\u5229\u7528\u4e2d\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001<a href=\"https:\/\/certbot.eff.org\/\">certbot<\/a>\u3092\u4f7f\u7528\u3057\u3066\u7121\u6599\u3067Let&#8217;s Encrypt\u306eSSL\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>Kinsta\u6a19\u6e96\u63d0\u4f9b\u306eCloudflare SSL\u8a3c\u660e\u66f8<\/h3>\n<p>Kinsta\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u306e\u30b5\u30a4\u30c8\u306b\u306f\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9Cloudflare SSL\u8a3c\u660e\u66f8\u306b\u3088\u3063\u3066\u81ea\u52d5\u7684\u306b\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002Cloudflare\u306e\u5e83\u7bc4\u306a\u30a8\u30c3\u30b8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6d3b\u7528\u3057\u3001<a href=\"https:\/\/kinsta.com\/blog\/how-ssl-works\/\">SSL\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af<\/a>\u306e\u9ad8\u901f\u5316\u3068\u6700\u65b0\u306e\u30a6\u30a7\u30d6\u30d6\u30e9\u30a6\u30b6\u3067\u306eHTTP\/3\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u308a\u3001\u512a\u308c\u305f\u30b5\u30a4\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_102843\" aria-describedby=\"caption-attachment-102843\" style=\"width: 1754px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-102843 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2016\/11\/http3-check.png\" alt=\"Kinsta\u306fHTTP\/3\u5bfe\u5fdc\u3067\u3088\u308a\u9ad8\u901f\u306aSSL\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u5b9f\u73fe\" width=\"1754\" height=\"1054\"><figcaption id=\"caption-attachment-102843\" class=\"wp-caption-text\">Kinsta\u306fHTTP\/3\u5bfe\u5fdc\u3067\u3088\u308a\u9ad8\u901f\u306aSSL\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u5b9f\u73fe<\/figcaption><\/figure>\n<p>Cloudflare SSL\u8a3c\u660e\u66f8\u306f\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30c9\u30e1\u30a4\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-multisite\/\">WordPress\u306e\u30de\u30eb\u30c1\u30b5\u30a4\u30c8\u3092\u904b\u55b6<\/a>\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3082\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u6570\u5341\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304c\u3042\u3063\u3066\u3082\u3001\u305d\u308c\u305e\u308c\u306b\u6700\u65b0\u306eSSL\u8a3c\u660e\u66f8\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u3059\u3079\u3066\u306e\u30b5\u30d6\u30b5\u30a4\u30c8\u304c\u81ea\u52d5\u7684\u306b\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>Let&#8217;s Encrypt\u3082\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u7121\u6599\u306eSSL\u8a3c\u660e\u66f8\u306e\u767a\u884c\u306bLet&#8217;s Encrypt\u3092\u4f7f\u7528\u3059\u308b\u591a\u304f\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30c9\u30e1\u30a4\u30f3\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<figure id=\"attachment_67526\" aria-describedby=\"caption-attachment-67526\" style=\"width: 1320px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-67526 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/mykinsta-add-custom-ssl.png\" alt=\"Kinsta\u3067\u306fCloudflare SSL\u8a3c\u660e\u66f8\u306e\u7121\u6599\u63d0\u4f9b\u306b\u52a0\u3048\u3066\u3001\u72ec\u81eaSSL\u8a3c\u660e\u66f8\u3082\u30b5\u30dd\u30fc\u30c8\" width=\"1320\" height=\"764\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/mykinsta-add-custom-ssl.png 1320w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/mykinsta-add-custom-ssl-300x174.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/mykinsta-add-custom-ssl-1024x593.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/mykinsta-add-custom-ssl-768x445.png 768w\" sizes=\"auto, (max-width: 1320px) 100vw, 1320px\" \/><figcaption id=\"caption-attachment-67526\" class=\"wp-caption-text\">Kinsta\u3067\u306fCloudflare SSL\u8a3c\u660e\u66f8\u306e\u7121\u6599\u63d0\u4f9b\u306b\u52a0\u3048\u3066\u3001\u72ec\u81eaSSL\u8a3c\u660e\u66f8\u3082\u30b5\u30dd\u30fc\u30c8<\/figcaption><\/figure>\n<p>Kinsta\u3067\u30b5\u30a4\u30c8\u3092\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u5834\u5408\u306f\u3001SSL\u306e\u8a2d\u5b9a\u306f\u4e0d\u8981\u3067\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/wordpress-domains\/dns\/\">\u30c9\u30e1\u30a4\u30f3\u3092\u8ffd\u52a0\u3057\u3066Kinsta\u306b\u7d10\u4ed8\u3051\u308b<\/a>\u3060\u3051\u3067\u3001Cloudflare SSL\u8a3c\u660e\u66f8\u304c\u81ea\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u307e\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/wordpress-domains\/wordpress-ssl-certificates\/#option-2--install-custom-ssl-certificate\">\u72ec\u81eaSSL\u8a3c\u660e\u66f8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/a>\u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\u3001<a href=\"https:\/\/kinsta.com\/jp\/mykinsta\/\">MyKinsta<\/a>\u3067\u6570\u56de\u306e\u30af\u30ea\u30c3\u30af\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h2 id=\"verify-your-ssl-certificate\">SSL\u8a3c\u660e\u66f8\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n<p data-start=\"42\" data-end=\"206\">\u30b5\u30a4\u30c8\u306b\u7121\u6599\u306eCloudflare SSL\u8a3c\u660e\u66f8\u304c\u5c0e\u5165\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u65e2\u5b58\u306e\u72ec\u81eaSSL\u8a3c\u660e\u66f8\u3092\u4e0a\u66f8\u304d\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001HTTPS\u3067\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Chrome\u3001Firefox\u3001Safari\u3067\u306e\u78ba\u8a8d\u65b9\u6cd5\u306f\u3001\u305d\u308c\u305e\u308c\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p data-start=\"244\" data-end=\"331\"><strong data-start=\"244\" data-end=\"255\">Chrome<\/strong>\uff1a\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306e\u5de6\u5074\u306b\u3042\u308btune\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c<strong>\u3053\u306e\u63a5\u7d9a\u306f\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059<\/strong>\u300d\uff1e\u300c<strong>\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059<\/strong>\u300d\u3092\u9078\u629e\u3057\u3001\u300c<strong>\u8a73\u7d30<\/strong>\u300d\u30bf\u30d6\u3092\u958b\u304f<\/p>\n<p data-start=\"333\" data-end=\"404\"><strong data-start=\"333\" data-end=\"345\">Firefox<\/strong>\uff1a\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306e\u5de6\u5074\u306b\u3042\u308b\u5357\u4eac\u9320\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c<strong>\u5b89\u5168\u306a\u63a5\u7d9a<\/strong>\u300d\uff1e\u300c<strong>\u8a73\u7d30\u3092\u8868\u793a<\/strong>\u300d\u3092\u9078\u629e\u3057\u3066\u3001\u300c<strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>\u300d\u30bf\u30d6\u306e\u300c<strong>\u8a3c\u660e\u66f8\u3092\u8868\u793a&#8230;<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af<\/p>\n<p data-start=\"406\" data-end=\"481\"><strong data-start=\"406\" data-end=\"417\">Safari<\/strong>\uff1a\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong data-start=\"434\" data-end=\"453\">\u63a5\u7d9a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8a73\u7d30\u2026<\/strong>\u300d\u3092\u9078\u629e\u3057\u3001\u300c<strong>\u8a3c\u660e\u66f8\u3092\u8868\u793a<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af<\/p>\n<p data-start=\"488\" data-end=\"635\">\u7121\u6599\u306eCloudflare SSL\u8a3c\u660e\u66f8\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u4e0a\u8a18\u306e\u3044\u305a\u308c\u304b\u306e\u65b9\u6cd5\u3067\u78ba\u8a8d\u3067\u304d\u308b\u767a\u884c\u8005\u540d\u306f\u3001\u4e00\u822c\u7684\u306b \u300cGoogle Trust Services\u300d \uff08\u307e\u305f\u306f\u5834\u5408\u306b\u3088\u308a\u300cLet\u2019s Encrypt\u300d \uff09\u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_67523\" aria-describedby=\"caption-attachment-67523\" style=\"width: 1084px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-67523 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/kinsta-ssl-certificate-example.png\" alt=\"Safari\u3067\u306eSSL\u8a3c\u660e\u66f8\u8a73\u7d30\u306e\u8868\u793a\u4f8b\" width=\"1084\" height=\"622\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/kinsta-ssl-certificate-example.png 1084w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/kinsta-ssl-certificate-example-300x172.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/kinsta-ssl-certificate-example-1024x588.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2019\/02\/kinsta-ssl-certificate-example-768x441.png 768w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\" \/><figcaption id=\"caption-attachment-67523\" class=\"wp-caption-text\">Safari\u3067\u306eSSL\u8a3c\u660e\u66f8\u8a73\u7d30\u306e\u8868\u793a\u4f8b<\/figcaption><\/figure>\n<p>\u307e\u305f\u3001WordPress\u30b5\u30a4\u30c8\u306e<a href=\"https:\/\/kinsta.com\/blog\/ssl-check\/\">SSL\u30c1\u30a7\u30c3\u30af<\/a>\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3082\u304a\u5fd8\u308c\u306a\u304f\u3002\u3059\u3079\u3066\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u300cA\u300d\u8a55\u4fa1\u304c\u51fa\u308b\u306f\u305a\u3067\u3059\u3002Qualys SSL Labs\u306e<a href=\"https:\/\/www.ssllabs.com\/ssltest\/analyze.html\">\u7121\u6599\u306eSSL\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb<\/a>\u304c\u7c21\u5358\u3067\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3057\u3001\u30b5\u30a4\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_102846\" aria-describedby=\"caption-attachment-102846\" style=\"width: 1500px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-102846 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2016\/11\/qualys-ssl-test.jpg\" alt=\"Qualys SSL\u3067\u30b5\u30a4\u30c8\u3092\u30c6\u30b9\u30c8\" width=\"1500\" height=\"797\"><figcaption id=\"caption-attachment-102846\" class=\"wp-caption-text\">Qualys SSL\u3067\u30b5\u30a4\u30c8\u3092\u30c6\u30b9\u30c8<\/figcaption><\/figure>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>2026\u5e74\u73fe\u5728\u3001SSL\u8a3c\u660e\u66f8\u306e\u5c0e\u5165\u306f\u3082\u306f\u3084\u5fc5\u9808\u4e8b\u9805\u3068\u8a00\u3063\u3066\u3082\u904e\u8a00\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002HTTP\u3068\u6bd4\u8f03\u3057\u3066\u3001HTTPS\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001SEO\u306a\u3069\u3001\u3059\u3079\u3066\u306e\u9762\u3067\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u3060\u5c0e\u5165\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u65e9\u6025\u306bSSL\u8a3c\u660e\u66f8\u3092\u5c0e\u5165\u3057\u3066\u3001\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u307e\u3057\u3087\u3046\u3002<a 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