{"id":31,"date":"2026-09-18T16:24:15","date_gmt":"2026-09-18T07:24:15","guid":{"rendered":"https:\/\/www.theipv6portal.org\/column\/http-header-basics\/"},"modified":"2026-09-18T16:24:15","modified_gmt":"2026-09-18T07:24:15","slug":"http-header-basics","status":"publish","type":"post","link":"https:\/\/www.theipv6portal.org\/column\/http-header-basics\/","title":{"rendered":"HTTP\u30d8\u30c3\u30c0\u30fc\u3067\u308f\u304b\u308b\u3053\u3068 \u2014 \u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u8aad\u3080"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u306e\u753b\u9762\u306b\u306f\u51fa\u3066\u3053\u306a\u3044\u3051\u308c\u3069\u3001\u30b5\u30a4\u30c8\u306e\u6319\u52d5\u3092\u6c7a\u3081\u3066\u3044\u308b\u306e\u304cHTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u30d8\u30c3\u30c0\u30fc\u3067\u3059\u3002<strong>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u9023\u9396\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u304d\u65b9\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a<\/strong>\u2014\u2014SEO\u3084\u8868\u793a\u901f\u5ea6\u306e\u30c8\u30e9\u30d6\u30eb\u306f\u3001\u30d8\u30c3\u30c0\u30fc\u3092\u898b\u308c\u3070\u539f\u56e0\u304c\u308f\u304b\u308b\u3053\u3068\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u305a\u898b\u308b\u306e\u306f\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u30fc\u304c\u300c\u3069\u3046\u5fdc\u7b54\u3057\u305f\u304b\u300d\u30923\u6841\u306e\u6570\u5b57\u3067\u8868\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u5148\u982d\u306e\u6570\u5b57\u3067\u5927\u304d\u304f\u610f\u5473\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>200<\/strong> OK \u2014 \u6b63\u5e38\u3002\u76e3\u8996\u30c4\u30fc\u30eb\u304c\u300c\u6b63\u5e38\u300d\u3068\u5224\u5b9a\u3059\u308b\u57fa\u6e96\u3082\u3053\u308c<\/li>\n<li><strong>301<\/strong> \u6052\u4e45\u7684\u306a\u79fb\u8ee2 \u2014 \u8a55\u4fa1\u3092\u5f15\u304d\u7d99\u304e\u305f\u3044URL\u5909\u66f4\u306f\u3053\u3061\u3089<\/li>\n<li><strong>302 \/ 307<\/strong> \u4e00\u6642\u7684\u306a\u79fb\u8ee2 \u2014 \u8a55\u4fa1\u306f\u5f15\u304d\u7d99\u304c\u308c\u306a\u3044<\/li>\n<li><strong>403<\/strong> \u62d2\u5426 \u2014 \u30d5\u30a1\u30a4\u30eb\u6a29\u9650\u304b\u30a2\u30af\u30bb\u30b9\u5236\u9650<\/li>\n<li><strong>404<\/strong> \u5b58\u5728\u3057\u306a\u3044 \u2014 \u30ea\u30f3\u30af\u5207\u308c<\/li>\n<li><strong>500<\/strong> \u30b5\u30fc\u30d0\u30fc\u5185\u90e8\u30a8\u30e9\u30fc \u2014 PHP\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u898b\u308b<\/li>\n<li><strong>503<\/strong> \u4e00\u6642\u7684\u306b\u5229\u7528\u4e0d\u53ef \u2014 \u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u3084\u904e\u8ca0\u8377<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u300c\u56de\u6570\u300d\u304c\u554f\u984c\u306b\u306a\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">301\u81ea\u4f53\u306f\u6b63\u5e38\u306a\u4ed5\u7d44\u307f\u3067\u3059\u304c\u3001\u8a2d\u5b9a\u304c\u7a4d\u307f\u91cd\u306a\u308b\u3068<strong>\u7121\u99c4\u306a\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u9023\u9396<\/strong>\u3057\u307e\u3059\u3002\u3042\u308a\u304c\u3061\u306a\u306e\u304c\u6b21\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">http:\/\/example.com\/page\n  \u2192 https:\/\/example.com\/page     (HTTPS\u5316)\n  \u2192 https:\/\/www.example.com\/page (www\u7d71\u4e00)\n  \u2192 https:\/\/www.example.com\/page\/ (\u672b\u5c3e\u30b9\u30e9\u30c3\u30b7\u30e5\u4ed8\u4e0e)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7d42\u7684\u306b\u6b63\u3057\u3044URL\u3078\u7740\u5730\u306f\u3057\u307e\u3059\u304c\u3001<strong>3\u56de\u5206\u306e\u5f80\u5fa9\u304c\u6bce\u56de\u767a\u751f<\/strong>\u3057\u307e\u3059\u3002\u8868\u793a\u901f\u5ea6\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3057\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30eb\u30fc\u30d7\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u8868\u793a\u81ea\u4f53\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u7406\u60f3\u306f<strong>1\u56de\u3067\u6700\u7d42URL\u306b\u7740\u5730\u3055\u305b\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u30d8\u30c3\u30c0\u30fc<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Location \u2014 \u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u5148<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">3xx\u306e\u3068\u304d\u306b\u3001\u3069\u3053\u3078\u98db\u3070\u305d\u3046\u3068\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u610f\u56f3\u3057\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u3078\u98db\u3093\u3067\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cache-Control \u2014 \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5bff\u547d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u66f4\u65b0\u3057\u305f\u306e\u306b\u53e4\u3044\u5185\u5bb9\u304c\u8868\u793a\u3055\u308c\u308b\u300d\u539f\u56e0\u306e\u591a\u304f\u306f\u3053\u3053\u3067\u3059\u3002<code>max-age<\/code> \u306e\u79d2\u6570\u3060\u3051\u30d6\u30e9\u30a6\u30b6\u3084CDN\u304c\u5185\u5bb9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002\u9006\u306b <code>no-store<\/code> \u306b\u306a\u3063\u3066\u3044\u308b\u3068\u6bce\u56de\u53d6\u5f97\u3059\u308b\u305f\u3081\u3001\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u306a\u306e\u306b\u9045\u3044\u3001\u3068\u3044\u3046\u72b6\u614b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Content-Type \u2014 \u4e2d\u8eab\u306e\u7a2e\u985e\u3068\u6587\u5b57\u30b3\u30fc\u30c9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u5b57\u5316\u3051\u306e\u539f\u56e0\u8abf\u67fb\u3067\u898b\u307e\u3059\u3002HTML\u306a\u306e\u306b <code>text\/plain<\/code> \u306b\u306a\u3063\u3066\u3044\u308c\u3070\u30bd\u30fc\u30b9\u304c\u305d\u306e\u307e\u307e\u8868\u793a\u3055\u308c\u307e\u3059\u3057\u3001<code>charset<\/code> \u306e\u6307\u5b9a\u9055\u3044\u306f\u6587\u5b57\u5316\u3051\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Strict-Transport-Security\uff08HSTS\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u6b21\u56de\u4ee5\u964d\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u306f\u5fc5\u305aHTTPS\u3067\u6765\u3044\u300d\u3068\u30d6\u30e9\u30a6\u30b6\u306b\u8a18\u61b6\u3055\u305b\u308b\u6307\u5b9a\u3067\u3059\u3002HTTP\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u6700\u521d\u304b\u3089\u906e\u65ad\u3067\u304d\u308b\u4e00\u65b9\u3001<strong>\u4e00\u5ea6\u9577\u3044 <code>max-age<\/code> \u3067\u914d\u4fe1\u3059\u308b\u3068\u671f\u9650\u307e\u3067\u53d6\u308a\u6d88\u305b\u307e\u305b\u3093<\/strong>\u3002\u5c0e\u5165\u6642\u306f\u77ed\u3044\u5024\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Server \/ X-Powered-By<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u30fc\u30bd\u30d5\u30c8\u3084PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u51fa\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u653b\u6483\u8005\u306b\u65e2\u77e5\u306e\u8106\u5f31\u6027\u3092\u6301\u3064\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6559\u3048\u308b\u3053\u3068\u306b\u306a\u308b\u305f\u3081\u3001<strong>\u672c\u756a\u3067\u306f\u96a0\u3057\u3066\u304a\u304f\u306e\u304c\u7121\u96e3<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u78ba\u8a8d\u3057\u3066\u307f\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.theipv6portal.org\/headercheck\" target=\"_blank\" rel=\"noopener\">HTTP\u30d8\u30c3\u30c0\u30fc\u78ba\u8a8d\u30c4\u30fc\u30eb<\/a>\u306bURL\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u30d8\u30c3\u30c0\u30fc\u3092\u305d\u306e\u307e\u307e\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<strong>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u81ea\u52d5\u8ffd\u8de1\u305b\u305a\u3001\u305d\u306eURL\u304c\u8fd4\u3057\u305f\u751f\u306e\u5fdc\u7b54<\/strong>\u3092\u8868\u793a\u3059\u308b\u306e\u3067\u3001\u591a\u6bb5\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u5404\u30db\u30c3\u30d7\u30921\u3064\u305a\u3064\u8ffd\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u307e\u305a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3002301\u3068302\u306f\u8a55\u4fa1\u306e\u5f15\u304d\u7d99\u304e\u304c\u9055\u3046<\/li>\n<li>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306f\u7740\u5730\u70b9\u3060\u3051\u3067\u306a\u304f\u56de\u6570\u3092\u898b\u308b\u3002\u7406\u60f3\u306f1\u56de<\/li>\n<li>\u300c\u66f4\u65b0\u304c\u53cd\u6620\u3055\u308c\u306a\u3044\u300d\u306fCache-Control\u3092\u7591\u3046<\/li>\n<li>HSTS\u306f\u5f37\u529b\u3060\u304c\u53d6\u308a\u6d88\u305b\u306a\u3044\u3002max-age\u306f\u5c0f\u3055\u304f\u59cb\u3081\u308b<\/li>\n<\/ul>\n\n","protected":false},"excerpt":{"rendered":"<p>301\u3068302\u306e\u9055\u3044\u3001\u591a\u6bb5\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u5f0a\u5bb3\u3001Cache-Control\u3084HSTS\u306e\u6ce8\u610f\u70b9\u307e\u3067\u3002\u753b\u9762\u306b\u51fa\u306a\u3044\u30d8\u30c3\u30c0\u30fc\u304b\u3089\u904b\u7528\u30c8\u30e9\u30d6\u30eb\u306e\u539f\u56e0\u3092\u8aad\u307f\u89e3\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"author":0,"featured_media":25,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server-ssl"],"_links":{"self":[{"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/comments?post=31"}],"version-history":[{"count":0,"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/posts\/31\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/media\/25"}],"wp:attachment":[{"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/media?parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/categories?post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.theipv6portal.org\/column\/wp-json\/wp\/v2\/tags?post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}