{"id":28243,"date":"2020-06-02T00:03:05","date_gmt":"2020-06-02T07:03:05","guid":{"rendered":"https:\/\/kinsta.com\/?post_type=knowledgebase&#038;p=7833"},"modified":"2025-10-02T04:50:59","modified_gmt":"2025-10-01T19:50:59","slug":"hsts-strict-transport-security","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/hsts-strict-transport-security\/","title":{"rendered":"HSTS \u2013 HTTP Strict Transport Security\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"<p>WordPress\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306f\u3001\u7279\u306b\u30cf\u30c3\u30ab\u30fc\u304b\u3089\u8eab\u3092\u5b88\u308b\u5834\u5408\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u30b5\u30a4\u30c8\u304c\u78ba\u5b9f\u306b\u4fdd\u8b77\u3055\u308c\u308b\u305f\u3081\u306e\u6a5f\u80fd\u5f37\u5316\u3084\u6700\u9ad8\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-security\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6163\u884c<\/a>\u304c\u591a\u3044\u3067\u3059\u3002WordPress\u30b5\u30a4\u30c8\u304cHTTPS\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u304a\u52e7\u3081\u306e\u62e1\u5f35\u6a5f\u80fd\u306e\u4e00\u3064\u306fHSTS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d8\u30c3\u30c0\u30fc\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u4e2d\u9593\u8005\u653b\u6483\uff08Man In The Middle Attack\u3001\u7701\u7565MitM\uff09\u3068\u30af\u30c3\u30ad\u30fc\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306e\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"#hsts-strict-transport-security\">HSTS\uff08Strict Transport Security\uff09<\/a><\/li>\n<li><a href=\"#add-hsts-wordpress\">WordPress\u30b5\u30a4\u30c8\u306bHSTS\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f<\/a><\/li>\n<li><a href=\"#verify-hsts-header\">HSTS\u30d8\u30c3\u30c0\u30fc\u306e\u691c\u8a3c<\/a><\/li>\n<li><a href=\"#hsts-seo\">HSTS\u306eSEO\u3078\u306e\u5f71\u97ff<\/a><\/li>\n<\/ul>\n<h2 id=\"hsts-strict-transport-security\">HSTS\uff08Strict Transport Security\uff09\u3068\u306f\uff1f<\/h2>\n<p>HSTS\u306f<a href=\"https:\/\/en.wikipedia.org\/wiki\/HTTP_Strict_Transport_Security\" target=\"_blank\" rel=\"noopener noreferrer\">HTTP Strict Transport Security<\/a>\u306e\u7565\u3067\u3042\u308a\u30012012\u5e74\u306b<a href=\"https:\/\/tools.ietf.org\/html\/rfc6797\" target=\"_blank\" rel=\"noopener noreferrer\">RFC 6797<\/a>\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u7279\u5225\u8abf\u67fb\u59d4\u54e1\u4f1a\uff08Internet Engineering Task Force\u3001\u7701\u7565IETF\uff09\u306b\u3088\u3063\u3066\u6307\u5b9a\u3055\u308c\u307e\u3057\u305f\u3002\u30b5\u30a4\u30c8\u304cHTTPS\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306b<strong>\u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u5b89\u5168\u306a\u63a5\u7d9a\u3092\u4f7f\u7528\u3055\u305b\u308b\u624b\u6bb5<\/strong>\u3068\u3057\u3066\u4f5c\u6210\u3055\u308c\u305fHSTS\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306b\u8ffd\u52a0\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d8\u30c3\u30c0\u30fc\u3067\u3042\u308a\u3001\u5fdc\u7b54\u30d8\u30c3\u30c0\u30fc\u3067\u306f\u300cStrict-Transport-Security\u300d\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002HSTS\u306f\u6b21\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u91cd\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u8a2a\u554f\u8005\u304c\u30b5\u30a4\u30c8\u4e0a\u306e\u30da\u30fc\u30b8\u306e\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\uff08HTTP:\/\/\uff09\u3092\u4f7f\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u81ea\u52d5\u7684\u306b\u4fdd\u8b77\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\uff08HTTPS:\/\/\uff09\u306b\u8ee2\u9001\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u53e4\u3044HTTP\u306e\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3084\u3001\u30b5\u30a4\u30c8\u306eHTTP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5165\u529b\u3057\u3066\u3044\u308b\u4eba\u306f\u3001\u4e2d\u9593\u8005\u653b\u6483\u306e\u8981\u56e0\u306b\u306a\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u4e2d\u9593\u8005\u653b\u6483\u3068\u306f\u3001\u653b\u6483\u8005\u304c\u72a0\u7272\u8005\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4e2d\u7d99\u3057\u3001\u72a0\u7272\u8005\u306b\u306f\u304a\u4e92\u3044\u306b\u5bfe\u8a71\u3057\u3066\u3044\u308b\u3068\u601d\u308f\u305b\u308b\u653b\u6483\u3067\u3059\u3002<\/li>\n<li>\u7121\u52b9\u306a\u8a3c\u660e\u66f8\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4e0a\u66f8\u304d\u3092\u8a31\u53ef\u3057\u306a\u3044\u305f\u3081\u3001\u8a2a\u554f\u8005\u306f\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u30af\u30c3\u30ad\u30fc\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\uff1a\u5b89\u5168\u3067\u306a\u3044\u63a5\u7d9a\u3092\u4ecb\u3057\u3066\u30bb\u30c3\u30b7\u30e7\u30f3\u30af\u30c3\u30ad\u30fc\u3092\u76d7\u3093\u3060\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u653b\u6483\u3067\u3059\u3002\u30af\u30c3\u30ad\u30fc\u306b\u306f\u3001\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u3001\u540d\u524d\u3001\u4f4f\u6240\u306a\u3069\u306e\u8cb4\u91cd\u306a\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2 id=\"add-hsts-wordpress\">WordPress\u30b5\u30a4\u30c8\u306bHSTS\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f<\/h2>\n<p>\u672c\u6765\u306a\u3089\u3070\u3001HSTS\u3092\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u81ea\u4f53\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001WordPress\u30b5\u30a4\u30c8\u3078\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u901a\u5e38\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/redirect-http-to-https\/\" target=\"_blank\" rel=\"noopener noreferrer\">HTTP\u304b\u3089HTTPS\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/a>\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002Google\u306f\u3001301\u30b5\u30fc\u30d0\u30fc\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3068HSTS\u30d8\u30c3\u30c0\u30fc\u3092\u4e00\u7dd2\u306b\u4f7f\u7528\u3067\u304d\u308b\u3068\u516c\u5f0f\u767a\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote style=\"margin-left: 30px;font-size: 17px\"><p>Google \u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 HTTPS \u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u304c\u3001HTTP \u30b5\u30a4\u30c8\u3092 HTTPS \u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u305f\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b HSTS \u30d8\u30c3\u30c0\u30fc\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u4ed6\u306e\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3067\u3082 HTTPS \u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u660e\u793a\u7684\u306b\u512a\u5148\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 Google Security Team\u306e<a href=\"https:\/\/webmasters.googleblog.com\/2015\/12\/indexing-https-pages-by-default.html\" target=\"_blank\" rel=\"noopener noreferrer\">Zineb Ait Bahajji<\/a><\/p><\/blockquote>\n<p>HSTS\u30d8\u30c3\u30c0\u30fc\u306b\u9069\u7528\u3067\u304d\u308b\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30ec\u30d9\u30eb\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u6700\u3082\u57fa\u672c\u7684\u306a\u3082\u306e\u3067\u3001max-age\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u304cHTTPS\u306e\u307f\u3067\u914d\u4fe1\u3059\u308b\u6642\u9593\u3092\u79d2\u5358\u4f4d\u3067\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<p><strong>Apache\u3067HSTS\u3092\u6709\u52b9\u306b\u3059\u308b<\/strong><\/p>\n<p>\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u4eee\u60f3\u30db\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">Header always set Strict-Transport-Security max-age=31536000<\/code><\/pre>\n<p><strong>NGINX\u3067HSTS\u3092\u6709\u52b9\u306b\u3059\u308b<\/strong><\/p>\n<p>\u6b21\u306e\u30b3\u30fc\u30c9\u3092NGINX\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-php\">add_header Strict-Transport-Security \"max-age=31536000\";<\/code><\/pre>\n<p>HSTS\u30d8\u30c3\u30c0\u30fc\u3092WordPress\u30b5\u30a4\u30c8\u306b\u8ffd\u52a0\u3057\u305f\u3044Kinsta\u306e\u304a\u5ba2\u69d8\u306b\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/docs\/support\/contact-support\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b5\u30dd\u30fc\u30c8\u30c1\u30b1\u30c3\u30c8<\/a>\u3092\u958b\u3044\u3066\u3044\u305f\u3060\u304f\u3068\u3001\u5f53\u793e\u306e\u30b9\u30bf\u30c3\u30d5\u306f\u3059\u3050\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002HSTS\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304cHTTP\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u5834\u5408\u3001HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u884c\u308f\u308c\u305a\u306b\u3001HTTPS\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>HSTS\u306e\u30d7\u30ea\u30ed\u30fc\u30c9<\/h3>\n<p>HSTS\u306e\u30d7\u30ea\u30ed\u30fc\u30c9\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u57fa\u672c\u7684\u306b\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\u3092\u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u627f\u8a8d\u6e08\u307f\u306eHSTS\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3059\u308b\u5236\u5ea6\u3067\u3059\u3002HSTS\u30d7\u30ea\u30ed\u30fc\u30c9\u30ea\u30b9\u30c8\u306fGoogle\u306b\u3088\u308a\u4f5c\u6210\u3055\u308c\u3001Chrome\u3001Firefox\u3001Opera\u3001Safari\u3001IE11\u3001\u304a\u3088\u3073Edge\u3067\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/hstspreload.appspot.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">HSTS\u30d7\u30ea\u30ed\u30fc\u30c9\u30ea\u30b9\u30c8<\/a>\u306b\u30b5\u30a4\u30c8\u3092\u767b\u9332\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<figure style=\"width: 1548px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/preload-hsts-1.png\" alt=\"HSTS\u306e\u30d7\u30ea\u30ed\u30fc\u30c9\" width=\"1548\" height=\"1488\"><figcaption class=\"wp-caption-text\">HSTS\u306e\u30d7\u30ea\u30ed\u30fc\u30c9<\/figcaption><\/figure>\n<p>\u305f\u3060\u3057\u3001\u8cc7\u683c\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001\u8ffd\u52a0\u8981\u4ef6\u3092\u6e80\u305f\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30b5\u30fc\u30d0\u30fc\u306b\u306f\u6709\u52b9\u306aSSL \/ TLS\u8a3c\u660e\u66f8\u304c\u5fc5\u8981\u3067\u3059\u3002\uff08<a href=\"https:\/\/kinsta.com\/jp\/blog\/tls-vs-ssl\/\">TLS\u3068SSL\uff1a\u9055\u3044\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f<\/a>\uff09<\/li>\n<li>\u3059\u3079\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306fHTTPS\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>HSTS\u3092\u30d9\u30fc\u30b9\u30c9\u30e1\u30a4\u30f3\u3067\u914d\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<li>\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092HTTPS\u3067\u914d\u4fe1\u3057\u307e\u3059\u3002\u7279\u306b\u3001www\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304c\u3042\u308c\u3070\u542b\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<li>\u6709\u52b9\u671f\u9650\u306f\u5c11\u306a\u304f\u3068\u30821\u5e74\uff0831536000\u79d2\uff09\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>includeSubdomains\u30c8\u30fc\u30af\u30f3\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>preload\u30c8\u30fc\u30af\u30f3\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u8ffd\u52a0\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3068\u30d7\u30ea\u30ed\u30fc\u30c9\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092HSTS\u30d8\u30c3\u30c0\u30fc\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u66f4\u65b0\u3055\u308c\u305fHSTS\u30d8\u30c3\u30c0\u30fc\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-php\">add_header Strict-Transport-Security \"max-age=31536000; includeSubDomains; preload\";<\/code><\/pre>\n<p><strong>\u6ce8\u610f\u4e8b\u9805\uff1a<\/strong> \u30c9\u30e1\u30a4\u30f3\u3092\u30d7\u30ea\u30ed\u30fc\u30c9\u30ea\u30b9\u30c8\u304b\u3089\u524a\u9664\u3059\u308b\u3053\u3068\u306f\u56f0\u96e3\u3067\u6642\u9593\u306e\u304b\u304b\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u4eca\u5f8c\u306f\u5fc5\u305aHTTPS\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"verify-hsts-header\">HSTS\u30d8\u30c3\u30c0\u30fc\u306e\u691c\u8a3c<\/h2>\n<p>HSTS\u304cWordPress\u30b5\u30a4\u30c8\u3067\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u7c21\u5358\u306a\u65b9\u6cd5\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001Google Chrome Devtools\u3092\u8d77\u52d5\u3057\u3001\u300cNetwork\u300d\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u30bf\u30d6\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3001\u30d8\u30c3\u30c0\u30fc\u30bf\u30d6\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u753b\u50cf\u306e\u901a\u308a\u3001Kinsta\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u306f\u300cstrict-transport-security\uff1amax-age = 31536000\u300d\u3068\u3044\u3046HSTS\u5024\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/strict-transport-security-HTTP-response.png\" alt=\"http\u5fdc\u7b54strict transport security\" width=\"1462\" height=\"710\"><\/p>\n<p>strict-transport-security\u30d8\u30c3\u30c0\u30fc\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u901a\u77e5\u3059\u308b<a href=\"https:\/\/securityheaders.io\/?q=securityheaders.io&#038;followRedirects=on\" target=\"_blank\" rel=\"noopener noreferrer\">securityheaders.io<\/a>\u306a\u3069\u306e\u7121\u6599\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066WordPress\u30b5\u30a4\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/scan-security-headers.png\" alt=\"\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d8\u30c3\u30c0\u30fc\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\" width=\"1415\" height=\"565\"><\/p>\n<h3>HSTS\u306e\u30d6\u30e9\u30a6\u30b6\u30b5\u30dd\u30fc\u30c8<\/h3>\n<p>Caniuse\u306b\u3088\u308b\u3068\u3001<a href=\"http:\/\/caniuse.com\/#search=hsts\" target=\"_blank\" rel=\"noopener noreferrer\">HSTS\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u30b5\u30dd\u30fc\u30c8<\/a>\u306f\u975e\u5e38\u306b\u666e\u53ca\u3057\u3066\u304a\u308a\u3001\u5168\u4e16\u754c\u306780\uff05\u4ee5\u4e0a\u3001\u7c73\u56fd\u3067\u306f95\uff05\u4ee5\u4e0a\u3067\u3059\u3002IE11\u306b\u306fHSTS\u306e\u30b5\u30dd\u30fc\u30c8\u306f2015\u5e74\u306b\u8ffd\u52a0\u3055\u308c\u3001\u6700\u65b0\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u4e2d\u3067\u73fe\u5728HSTS\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u3082\u306e\u306fOpera Mini\u306e\u307f\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/hsts-browser-support.png\" alt=\"HSTS\u306e\u30d6\u30e9\u30a6\u30b6\u30b5\u30dd\u30fc\u30c8\" width=\"1465\" height=\"829\"><\/p>\n<p>\u307e\u305f\u306f\u3001Tim Kadlec\u306e<a href=\"https:\/\/timkadlec.com\/2016\/01\/hsts-and-lets-encrypt\/\" target=\"_blank\" rel=\"noopener noreferrer\">HSTS\u3068Let\u2019s Encrypt<\/a>\u306b\u3064\u3044\u3066\u306e\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3082\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"hsts-seo\">HSTS\u306eSEO\u3078\u306e\u5f71\u97ff<\/h2>\n<p>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u627f\u8a8d\u3055\u308c\u3066HSTS\u30d7\u30ea\u30ed\u30fc\u30c9\u30ea\u30b9\u30c8\u306b\u8a18\u8f09\u3055\u308c\u308b\u3068\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/google-search-console\/\">Google Search Console<\/a>\u306a\u3069\u306e\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306eSEO\u30c4\u30fc\u30eb\u3067<a href=\"https:\/\/kinsta.com\/blog\/307-redirect\/\" target=\"_blank\" rel=\"noopener noreferrer\">307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/a>\u306b\u95a2\u3059\u308b\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304cHTTP\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u3067\u306f301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u306f\u306a\u304f\u3001307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3067\u3059\uff08\u4ee5\u4e0b\u3092\u53c2\u7167\uff09\u3002<\/p>\n<figure style=\"width: 1588px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/hsts-Strict-Transport-Security-seo-redirect.png\" alt=\"HSTS \u2013 Strict-Transport-Security \u306e307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\" width=\"1588\" height=\"540\"><figcaption class=\"wp-caption-text\">HSTS \u2013 Strict-Transport-Security \u306e307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/figcaption><\/figure>\n<p>307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u901a\u5e38\u3001\u4e00\u6642\u7684\u306a\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u306e\u307f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5b8c\u5168\u306b\u79fb\u52d5\u3055\u308c\u305fURL\u306b\u306f\u3001301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3067\u306f\u3001301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u4f7f\u7528\u3059\u3079\u304d\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f\u305d\u3057\u3066\u3001SEO\u3078\u306e\u5f71\u97ff\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u5b9f\u306f\u3001\u821e\u53f0\u88cf\u3067301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002307\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u3067\u306f\u306a\u304f\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u30ec\u30d9\u30eb\u3067\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/httpstatus.io\/\" target=\"_blank\" rel=\"noopener noreferrer\">httpstatus<\/a>\u306a\u3069\u306e\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u3067\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3059\u308b\u3068\u3001301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002 \u3057\u305f\u304c\u3063\u3066\u3001HSTS\u30d8\u30c3\u30c0\u30fc\u304cSEO\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u3092\u5fc3\u914d\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure style=\"width: 1878px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2016\/11\/hsts-301-redirect.png\" alt=\"HSTS \u306e301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\" width=\"1878\" height=\"1064\"><figcaption class=\"wp-caption-text\">HSTS \u306e301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>WordPress\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055 &#8230;<\/p>\n","protected":false},"author":38,"featured_media":28244,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[37,36],"topic":[834],"class_list":["post-28243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-websec","tag-wordpress","topic-wordpress-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HSTS \u2013 HTTP Strict Transport Security\u306e\u4f7f\u3044\u65b9<\/title>\n<meta name=\"description\" content=\"\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306bHSTS\uff08HTTP Strict Transport Security\uff09\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u308b\u3068\u3001\u4e2d\u9593\u8005\u653b\u6483\u3068\u30af\u30c3\u30ad\u30fc\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306e\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kinsta.com\/jp\/blog\/hsts-strict-transport-security\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HSTS \u2013 HTTP Strict Transport Security\u306e\u4f7f\u3044\u65b9\" \/>\n<meta property=\"og:description\" content=\"\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306bHSTS\uff08HTTP Strict Transport Security\uff09\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u308b\u3068\u3001\u4e2d\u9593\u8005\u653b\u6483\u3068\u30af\u30c3\u30ad\u30fc\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306e\u9632\u6b62\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kinsta.com\/jp\/blog\/hsts-strict-transport-security\/\" \/>\n<meta property=\"og:site_name\" content=\"Kinsta\u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/fm.brianleejackson\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-02T07:03:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-01T19:50:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2020\/06\/hsts-strict-transport-security-1024x512-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" 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