{"id":21627,"date":"2021-07-03T09:58:23","date_gmt":"2021-07-03T09:58:23","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/2021\/07\/03\/10-%e6%9c%80%e3%82%82%e4%b8%80%e8%88%ac%e7%9a%84%e3%81%aa-http-%e3%82%b9%e3%83%86%e3%83%bc%e3%82%bf%e3%82%b9-%e3%82%b3%e3%83%bc%e3%83%89\/"},"modified":"2026-05-31T20:27:25","modified_gmt":"2026-05-31T20:27:25","slug":"10-%e6%9c%80%e3%82%82%e4%b8%80%e8%88%ac%e7%9a%84%e3%81%aa-http-%e3%82%b9%e3%83%86%e3%83%bc%e3%82%bf%e3%82%b9-%e3%82%b3%e3%83%bc%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/10-%e6%9c%80%e3%82%82%e4%b8%80%e8%88%ac%e7%9a%84%e3%81%aa-http-%e3%82%b9%e3%83%86%e3%83%bc%e3%82%bf%e3%82%b9-%e3%82%b3%e3%83%bc%e3%83%89\/","title":{"rendered":"\u6700\u3082\u4e00\u822c\u7684\u306aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\uff08\u305d\u308c\u305e\u308c\u306b\u5bfe\u51e6\u3059\u308b\u65b9\u6cd5\uff09"},"content":{"rendered":"<figure id=\"attachment_33970\" aria-describedby=\"caption-attachment-33970\" style=\"width: 1536px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-33970\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/hero-http-status-codes.webp\" alt=\"\u30ab\u30c6\u30b4\u30ea\u5225\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3055\u308c\u305f\u6700\u3082\u4e00\u822c\u7684\u306aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u8996\u899a\u7684\u53c2\u7167\u20142xx \u6210\u529f\u30013xx \u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u30014xx \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a8\u30e9\u30fc\u30015xx \u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/hero-http-status-codes.webp 1536w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/hero-http-status-codes-300x200.webp 300w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/hero-http-status-codes-1024x683.webp 1024w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/hero-http-status-codes-768x512.webp 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><figcaption id=\"caption-attachment-33970\" class=\"wp-caption-text\">\u672c\u756a\u74b0\u5883\u3067\u5b9f\u969b\u306b\u76ee\u306b\u3059\u308b5\u3064\u306eHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30ab\u30c6\u30b4\u30ea\u3068\u30b3\u30fc\u30c9\u3002<\/figcaption><\/figure>\n<p>\u3042\u306a\u305f\u306e\u30da\u30fc\u30b8\u30e3\u30fc\u306f\u5348\u524d2\u6642\u306b\u9cf4\u308a\u307e\u3059\u3002\u30a2\u30e9\u30fc\u30c8\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u306f\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\u4f55\u3092\u3059\u308b\u304b\u306f\u3001\u307b\u307c\u5b8c\u5168\u306b\u898b\u305f\u30b3\u30fc\u30c9\u6b21\u7b2c\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u304c\u307b\u3068\u3093\u3069\u306eHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30ac\u30a4\u30c9\u304c\u7701\u7565\u3059\u308b\u90e8\u5206\u3067\u3059\u3002\u5b9a\u7fa9\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u3001\u30b3\u30fc\u30c9\u30925\u3064\u306e\u30d0\u30b1\u30c3\u30c8\u306b\u5206\u985e\u3057\u3066\u7d42\u308f\u308a\u3002\u7528\u8a9e\u96c6\u3068\u3057\u3066\u306f\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u672c\u756a\u74b0\u5883\u3067502\u304c\u767a\u751f\u3057\u3001\u7d4c\u55b6\u5c64\u304c\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u306e\u4e0d\u5177\u5408\u3092\u5c0b\u306d\u3066\u3044\u308b\u3068\u304d\u306b\u306f\u3042\u307e\u308a\u5f79\u306b\u7acb\u3061\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u6700\u3082\u3088\u304f\u898b\u308b10\u306e\u30b3\u30fc\u30c9\u306b\u52a0\u3048\u3066\u3044\u304f\u3064\u304b\u306e\u540d\u8a89\u3042\u308b\u8a00\u53ca\u3092\u6271\u3044\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306b\u3064\u3044\u3066\uff1a\u610f\u5473\u3001\u672c\u756a\u74b0\u5883\u3067\u901a\u5e38\u305d\u308c\u3092\u5f15\u304d\u8d77\u3053\u3059\u539f\u56e0\u3001\u6700\u521d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u3053\u3068\u3002\u76ee\u6a19\u306f\u300c\u30b3\u30fc\u30c9\u3092\u898b\u305f\u300d\u304b\u3089\u300c\u4f55\u3092\u4fee\u6b63\u3059\u3079\u304d\u304b\u5206\u304b\u308b\u300d\u307e\u3067\u306e\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2 id='http\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068\u306f'  id=\"boomdevs_1\">HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068\u306f\uff1f<\/h2>\n<p>HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u6bce\u56de\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u5171\u306b\u8fd4\u30593\u6841\u306e\u6570\u5b57\u3067\u3059\u3002\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6210\u529f\u3057\u305f\u304b\u3001\u5931\u6557\u3057\u305f\u304b\u3001\u307e\u305f\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u5fc5\u8981\u304b\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u4f1d\u3048\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306eDevTools\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30d6\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306e\u30ed\u30b0\u3001\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30a2\u30e9\u30fc\u30c8\u3001CDN\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306a\u3069\u3001\u3069\u3053\u3067\u3082\u898b\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306f\u5b9f\u969b\u306b\u4eba\u3092\u8d77\u3053\u3059\u30b3\u30fc\u30c9\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2 id='http\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e5\u3064\u306e\u30ab\u30c6\u30b4\u30ea'  id=\"boomdevs_2\">HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e5\u3064\u306e\u30ab\u30c6\u30b4\u30ea<\/h2>\n<p>\u30b3\u30fc\u30c9\u306e\u6700\u521d\u306e\u6841\u304c\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30af\u30e9\u30b9\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>1xx \u60c5\u5831\u5fdc\u7b54\u3002<\/strong> \u65e5\u5e38\u696d\u52d9\u3067\u306f\u3081\u3063\u305f\u306b\u3042\u308a\u307e\u305b\u3093\u3002\u4e3b\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u4ea4\u6e09\u306b\u4f7f\u308f\u308c\u307e\u3059\uff08100 Continue\u3001101 Switching Protocols\u306fWebSocket\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u7528\uff09\u3002<\/li>\n<li><strong>2xx \u6210\u529f\u3002<\/strong> \u30ea\u30af\u30a8\u30b9\u30c8\u306f\u6210\u529f\u3057\u307e\u3057\u305f\u3002200\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\uff1b201\u306f\u30ea\u30bd\u30fc\u30b9\u4f5c\u6210\u3092\u610f\u5473\u3057\uff1b204\u306f\u30dc\u30c7\u30a3\u306a\u3057\u3067\u6210\u529f\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n<li><strong>3xx \u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u3002<\/strong> \u30ea\u30bd\u30fc\u30b9\u306f\u5225\u306e\u5834\u6240\u306b\u3042\u308a\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u3084\u30af\u30ed\u30fc\u30e9\u306f\u3053\u308c\u3092\u81ea\u52d5\u7684\u306b\u4e0a\u9650\u307e\u3067\u8ffd\u5f93\u3057\u307e\u3059\u3002<\/li>\n<li><strong>4xx \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a8\u30e9\u30fc\u3002<\/strong> \u30ea\u30af\u30a8\u30b9\u30c8\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002\u7121\u52b9\u306aURL\u3001\u8a8d\u8a3c\u4e0d\u8db3\u3001\u6a29\u9650\u62d2\u5426\u3001\u4e0d\u6b63\u306a\u30da\u30a4\u30ed\u30fc\u30c9\u306a\u3069\u3002<\/li>\n<li><strong>5xx \u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u3002<\/strong> \u30ea\u30af\u30a8\u30b9\u30c8\u306f\u6b63\u5e38\u3067\u3057\u305f\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u51e6\u7406\u5931\u6557\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u30c8\u30ea\u30a2\u30fc\u30b8\u3067\u6700\u3082\u91cd\u8981\u306a\u306e\u306f4xx\u30685xx\u306e\u5206\u3051\u65b9\u3067\u3059\u30024xx\u306f\u300c\u30b3\u30fc\u30e9\u30fc\u304c\u4f55\u304b\u9593\u9055\u3048\u305f\u300d\u3068\u793a\u3057\u30015xx\u306f\u300c\u3053\u3061\u3089\u304c\u4f55\u304b\u9593\u9055\u3048\u305f\u300d\u3068\u793a\u3057\u307e\u3059\u3002\u524d\u8005\u306f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u547c\u3073\u51fa\u3057\u5143\u306b\u8cac\u4efb\u304c\u3042\u308a\u3001\u5f8c\u8005\u306f\u3042\u306a\u305f\u306b\u8cac\u4efb\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b8c\u5168\u306a\u4e00\u89a7\u306b\u3064\u3044\u3066\u306f\u3001Dotcom-Monitor\u30a6\u30a3\u30ad\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/wiki\/knowledge-base\/http-status-codes-list\/\">\u5b8c\u5168\u306aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/a>\u304c\u4ed5\u69d8\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u30b3\u30fc\u30c9\u3092\u30ea\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306e\u6b8b\u308a\u306f\u5b9f\u969b\u306b\u30a2\u30e9\u30fc\u30c8\u306b\u73fe\u308c\u308b\u30b3\u30fc\u30c9\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002<\/p>\n<h2 id='\u6700\u3082\u4e00\u822c\u7684\u306a10\u306ehttp\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9'  id=\"boomdevs_3\">\u6700\u3082\u4e00\u822c\u7684\u306a10\u306eHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/h2>\n<h3 id='200-ok'  id=\"boomdevs_4\">200 OK<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3057\u3001\u671f\u5f85\u3055\u308c\u308b\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3057\u307e\u3057\u305f\u3002\u5065\u5168\u306a\u672c\u756a\u30b5\u30a4\u30c8\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5927\u591a\u6570\u3067\u898b\u305f\u3044\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<p><strong>\u6ce8\u610f\u3059\u3079\u304d\u70b9\uff1a<\/strong> 200 OK\u306f\u30da\u30fc\u30b8\u304c\u6b63\u3057\u3044\u3053\u3068\u306e\u8a3c\u660e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002JavaScript\u304c\u9759\u304b\u306b\u5931\u6557\u3057\u3066\u7a7a\u767d\u30da\u30fc\u30b8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002API\u304c\u30a8\u30e9\u30fc\u672c\u6587\u3092200\u3067\u8fd4\u3059\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30ed\u30b0\u30a4\u30f3\u30d5\u30a9\u30fc\u30e0\u304c200\u30ec\u30b9\u30dd\u30f3\u30b9\u5185\u306b\u300c\u7121\u52b9\u306a\u8a8d\u8a3c\u60c5\u5831\u300d\u3068\u8868\u793a\u3059\u308b\u3053\u3068\u3082\u3002\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3060\u3051\u306e\u30c1\u30a7\u30c3\u30af\u306f\u3053\u308c\u3089\u3092\u898b\u9003\u3057\u307e\u3059\u3002\u5b9f\u969b\u306e\u30d6\u30e9\u30a6\u30b6\u30c1\u30a7\u30c3\u30af\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3044\u307e\u3057\u3087\u3046\uff08\u5f8c\u8ff0\uff09\u3002<\/p>\n<h3 id='301-moved-permanently'  id=\"boomdevs_5\">301 Moved Permanently<\/h3>\n<p>\u30ea\u30bd\u30fc\u30b9\u306f\u65b0\u3057\u3044\u6052\u4e45\u7684\u306aURL\u306b\u79fb\u52d5\u3057\u307e\u3057\u305f\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u7a4d\u6975\u7684\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f\u30ea\u30f3\u30af\u30a8\u30af\u30a4\u30c6\u30a3\u306e\u5927\u90e8\u5206\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u79fb\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u4f7f\u3044\u3069\u3053\u308d\uff1a<\/strong> \u30b5\u30a4\u30c8\u79fb\u884c\u5f8c\u306eURL\u5909\u66f4\u3001HTTP\u304b\u3089HTTPS\u3078\u306e\u5207\u308a\u66ff\u3048\u3001\u91cd\u8907\u30d1\u30b9\u306e\u7d71\u5408\u3001\u53e4\u3044\u30b9\u30e9\u30c3\u30b0\u306e\u5ec3\u6b62\u3002301\u304c\u30e9\u30a4\u30d6\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u308b\u3068\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u306f\u56f0\u96e3\u3067\u3059\u2014\u30d6\u30e9\u30a6\u30b6\u3084\u30af\u30ed\u30fc\u30e9\u306f\u6570\u9031\u9593\u65b0\u3057\u3044\u5834\u6240\u3092\u4f7f\u3044\u7d9a\u3051\u307e\u3059\u3002<\/p>\n<h3 id='302-found-temporary-redirect'  id=\"boomdevs_6\">302 Found (Temporary Redirect)<\/h3>\n<p>\u30ea\u30bd\u30fc\u30b9\u306f\u4e00\u6642\u7684\u306b\u5225\u306e\u5834\u6240\u306b\u3042\u308a\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u305b\u305a\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f\u5b8c\u5168\u306a\u30ea\u30f3\u30af\u30a8\u30af\u30a4\u30c6\u30a3\u3092\u6e21\u3057\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\u6ce8\u610f\u3059\u3079\u304d\u70b9\uff1a<\/strong> 302\u306f\u904e\u5270\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30d8\u30eb\u30d1\u30fc\u304c302\u3092\u8fd4\u3059\u305f\u3081\u3001\u30c1\u30fc\u30e0\u304c\u5b89\u6613\u306b\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u79fb\u52d5\u304c\u6052\u4e45\u7684\u306a\u3089301\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002HTTP\u30e1\u30bd\u30c3\u30c9\u3092\u4fdd\u6301\u3057\u305f\u3044\u5834\u5408\uff08POST\u306fPOST\u306e\u307e\u307e\uff09\u306f307\u304b308\u3092\u4f7f\u3044\u307e\u3059\u3002Google\u306f\u7d99\u7d9a\u7684\u306a302\u3092\u3044\u305a\u308c301\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u304c\u3001\u300c\u3044\u305a\u308c\u300d\u306f\u6226\u7565\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3 id='400-bad-request'  id=\"boomdevs_7\">400 Bad Request<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u89e3\u6790\u3067\u304d\u307e\u305b\u3093\u3002\u7834\u640d\u3057\u305fJSON\u3001\u7121\u52b9\u306a\u30d8\u30c3\u30c0\u30fc\u3001\u904e\u5927\u306a\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u30b9\u30ad\u30fc\u30de\u9055\u53cd\u306a\u3069\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u30ea\u30af\u30a8\u30b9\u30c8\u30dc\u30c7\u30a3\u3002API\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067400\u306e\u6025\u5897\u304c\u3042\u3063\u305f\u5834\u5408\u3001\u901a\u5e38\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u8aa4\u3063\u305f\u5f62\u306e\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u59cb\u3081\u305f\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u2014\u6d88\u8cbb\u8005\u5074\u306e\u30c7\u30d7\u30ed\u30a4\u3001\u3042\u306a\u305f\u5074\u306e\u30b9\u30ad\u30fc\u30de\u5909\u66f4\u3001\u307e\u305f\u306f\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u7d71\u5408\u304c\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u66f4\u65b0\u3057\u305f\u306a\u3069\u3002\u30ea\u30af\u30a8\u30b9\u30c8\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u6700\u5f8c\u306b\u6b63\u5e38\u3060\u3063\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u6bd4\u8f03\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 id='401-unauthorized'  id=\"boomdevs_8\">401 Unauthorized<\/h3>\n<p>\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u8a8d\u8a3c\u60c5\u5831\u304c\u306a\u3044\u304b\u3001\u62d2\u5426\u3055\u308c\u305f\u8a8d\u8a3c\u60c5\u5831\u304c\u3042\u308a\u307e\u3059\u3002\u540d\u524d\u3068\u306f\u7570\u306a\u308a\u3001\u554f\u984c\u306f\u8a8d\u8a3c\u3067\u3042\u308a\u8a8d\u53ef\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u30c8\u30fc\u30af\u30f3\u3002\u4ee5\u524d\u306f\u6b63\u5e38\u3060\u3063\u305f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u7a81\u7136401\u304c\u5897\u3048\u305f\u5834\u5408\u3001\u30c8\u30fc\u30af\u30f3\u306e\u671f\u9650\u5207\u308c\u3001\u7f72\u540d\u9375\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3001OIDC\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u969c\u5bb3\u3001audience\u30af\u30ec\u30fc\u30e0\u306e\u5909\u66f4\u306a\u3069\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/api-availability-monitoring\/\">API\u53ef\u7528\u6027\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u3067200\u304c401\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u8a8d\u8a3c\u30ec\u30a4\u30e4\u30fc\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<h3 id='403-forbidden'  id=\"boomdevs_9\">403 Forbidden<\/h3>\n<p>\u8a8d\u8a3c\u60c5\u5831\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u547c\u3073\u51fa\u3057\u5143\u306f\u3053\u306e\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u554f\u984c\u306f\u8a8d\u8a3c\u3067\u306f\u306a\u304f\u8a8d\u53ef\u3067\u3059\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u6a29\u9650\u3068\u30a4\u30f3\u30d5\u30e9\u306e\u30eb\u30fc\u30eb\u3002IAM\u30dd\u30ea\u30b7\u30fc\u306e\u5909\u66f4\u3001WAF\u30eb\u30fc\u30eb\u306b\u3088\u308b\u6b63\u5f53\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d6\u30ed\u30c3\u30af\u3001CDN\u30a2\u30af\u30bb\u30b9\u30dd\u30ea\u30b7\u30fc\u306e\u904e\u5270\u306a\u5236\u9650\u3001\u9593\u9055\u3063\u305f\u30e6\u30fc\u30b6\u30fc\u30bb\u30b0\u30e1\u30f3\u30c8\u3078\u306e\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u30d5\u30e9\u30b0\u306e\u5207\u308a\u66ff\u3048\u3067403\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30c7\u30d7\u30ed\u30a4\u76f4\u5f8c\u306b403\u304c\u5897\u3048\u305f\u3089\u3001\u30a2\u30d7\u30ea\u30b3\u30fc\u30c9\u3088\u308a\u5148\u306b\u30dd\u30ea\u30b7\u30fc\u3084\u8a2d\u5b9a\u306e\u5dee\u5206\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 id='404-not-found'  id=\"boomdevs_10\">404 Not Found<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7406\u89e3\u3057\u305f\u304c\u3001\u305d\u306eURL\u306b\u30ea\u30bd\u30fc\u30b9\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u6709\u540d\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<p><strong>\u5206\u985e\u3059\u3079\u304d2\u3064\u306e\u30b7\u30ca\u30ea\u30aa\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u30bf\u30a4\u30dd\u3001\u53e4\u3044\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3001\u8106\u5f31\u6027\u3092\u63a2\u308b\u30af\u30ed\u30fc\u30e9\u306b\u3088\u308b\u4e00\u904e\u6027\u306e404<\/strong>\u3002\u3053\u308c\u306f\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30ce\u30a4\u30ba\u3067\u3059\u3002<\/li>\n<li><strong>\u30c7\u30d7\u30ed\u30a4\u76f4\u5f8c\u306e\u30ab\u30ce\u30cb\u30ab\u30ebURL\u3067\u306e404\u6025\u5897<\/strong>\u3002\u3053\u308c\u306f\u58ca\u308c\u305f\u30ea\u30ea\u30fc\u30b9\u2014\u30eb\u30fc\u30c8\u304c\u524a\u9664\u3055\u308c\u305f\u3001\u30d3\u30eb\u30c9\u6210\u679c\u7269\u304c\u6b20\u843d\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306a\u3057\u3067\u30b9\u30e9\u30c3\u30b0\u5909\u66f4\u304c\u51fa\u8377\u3055\u308c\u305f\u306a\u3069\u3002\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u304b\u30db\u30c3\u30c8\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u3002<\/li>\n<\/ul>\n<p>\u30ab\u30ce\u30cb\u30ab\u30eb\u30da\u30fc\u30b8\u3067\u306e\u6301\u7d9a\u7684\u306a404\u306fGoogle\u306b\u3088\u308a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304b\u3089\u9664\u5916\u3055\u308c\u308b\u305f\u3081\u3001SEO\u30b3\u30b9\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4 id='\u4fee\u6b63\u65b9\u6cd5'  id=\"boomdevs_11\">\u4fee\u6b63\u65b9\u6cd5<\/h4>\n<p><strong>\u8fc5\u901f\u306a\u5bfe\u5fdc\uff1a<\/strong> \u30da\u30fc\u30b8\u304c\u79fb\u52d5\u3057\u305f\u5834\u5408\u3001\u65e7URL\u304b\u3089\u65b0URL\u3078\u306e301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u8ffd\u52a0\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30af\u30ed\u30fc\u30e9\u304c\u6b63\u3057\u3044\u5834\u6240\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30da\u30fc\u30b8\u304c\u672c\u5f53\u306b\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u66d6\u6627\u306a\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u306f\u306a\u304f\u6b63\u3057\u3044404\u3084410\u3092\u8fd4\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u672c\u8cea\u7684\u306a\u4fee\u6b63\uff1a<\/strong> 404\u306e\u539f\u56e0\u3092\u76e3\u67fb\u3057\u307e\u3059\u3002\u58ca\u308c\u305f\u5185\u90e8\u30ea\u30f3\u30af\u306f\u5143\u304b\u3089\u4fee\u6b63\u3001\u30c7\u30d7\u30ed\u30a4\u5f8c\u306e\u30eb\u30fc\u30c8\u4e0d\u8db3\u306f\u30db\u30c3\u30c8\u30d5\u30a3\u30c3\u30af\u30b9\u3001\u30b9\u30e9\u30c3\u30b0\u306e\u4e0d\u6b63\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30de\u30c3\u30d7\u304c\u5fc5\u8981\u3067\u3059\u3002\u5b9a\u671f\u7684\u306b\u81ea\u30b5\u30a4\u30c8\u3092\u30af\u30ed\u30fc\u30eb\u3057\u3066Google\u3088\u308a\u5148\u306b\u6b7b\u3093\u3060\u30ea\u30f3\u30af\u3092\u898b\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 id='500-internal-server-error'  id=\"boomdevs_12\">500 Internal Server Error<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u3067\u672a\u51e6\u7406\u306e\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002\u3059\u3079\u3066\u3092\u5305\u62ec\u3059\u308b5xx\u30b3\u30fc\u30c9\u3002\u4f55\u304b\u304c\u58ca\u308c\u305f\u3053\u3068\u3092\u77e5\u3089\u305b\u307e\u3059\u304c\u4f55\u304c\u58ca\u308c\u305f\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u3002500\u30a8\u30e9\u30fc\u306b\u306f\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u304c\u3042\u308b\u306f\u305a\u3067\u3059\u2014\u306a\u3051\u308c\u3070\u30ed\u30b0\u8a18\u9332\u306e\u6539\u5584\u304c\u5148\u3067\u3059\u3002\u4e00\u822c\u7684\u306a\u539f\u56e0\uff1a\u65b0\u3057\u304f\u30c7\u30d7\u30ed\u30a4\u3057\u305f\u30b3\u30fc\u30c9\u30d1\u30b9\u306e\u672a\u6355\u6349\u4f8b\u5916\u3001\u4e0b\u6d41\u4f9d\u5b58\u6027\u304c\u4e88\u671f\u3057\u306a\u3044\u5f62\u3067\u5fdc\u7b54\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u67af\u6e07\u3001\u30e1\u30e2\u30ea\u4e0d\u8db3\u306b\u3088\u308b\u518d\u8d77\u52d5\u30eb\u30fc\u30d7\u3002\u751f\u7523\u74b0\u5883\u3067500\u30a8\u30e9\u30fc\u304c\u6301\u7d9a\u7684\u306b\u5897\u52a0\u3057\u305f\u3089\u7dca\u6025\u5bfe\u5fdc\u3092\u3002<\/p>\n<h4 id='\u4fee\u6b63\u65b9\u6cd5-1'  id=\"boomdevs_13\">\u4fee\u6b63\u65b9\u6cd5<\/h4>\n<p><strong>\u8fc5\u901f\u306a\u5bfe\u5fdc\uff1a<\/strong> \u30ea\u30ea\u30fc\u30b9\u76f4\u5f8c\u306b\u30b9\u30d1\u30a4\u30af\u304c\u59cb\u307e\u3063\u305f\u5834\u5408\u306f\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3002\u30c7\u30d7\u30ed\u30a4\u76f4\u5f8c\u306b\u73fe\u308c\u305f500\u306f\u30c7\u30d7\u30ed\u30a4\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u672c\u8cea\u7684\u306a\u4fee\u6b63\uff1a<\/strong> \u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u3092\u8aad\u307f\u3001\u554f\u984c\u30b3\u30fc\u30c9\u30d1\u30b9\u3092\u4fee\u6b63\u3057\u3001\u518d\u767a\u3057\u306a\u3044\u3088\u3046\u56de\u5e30\u30c6\u30b9\u30c8\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u539f\u56e0\u304c\u30ea\u30bd\u30fc\u30b9\u5236\u9650\uff08\u63a5\u7d9a\u30d7\u30fc\u30eb\u3001\u30e1\u30e2\u30ea\u3001\u30d5\u30a1\u30a4\u30eb\u30cf\u30f3\u30c9\u30eb\uff09\u306a\u3089\u4e0a\u9650\u3092\u4e0a\u3052\u3001\u6b21\u56de\u5230\u9054\u524d\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 id='502-bad-gateway'  id=\"boomdevs_14\">502 Bad Gateway<\/h3>\n<p>\u30d7\u30ed\u30ad\u30b7\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3001CDN\u304c\u4e0a\u6d41\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u7121\u52b9\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u53d7\u3051\u53d6\u308a\u307e\u3057\u305f\u3002\u30d7\u30ed\u30ad\u30b7\u81ea\u4f53\u306f\u6b63\u5e38\u3067\u3059\u304c\u3001\u80cc\u5f8c\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u4e0d\u8abf\u3067\u3059\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u4e0a\u6d41\u306e\u5065\u5168\u6027\u3002\u4e00\u822c\u7684\u306a\u539f\u56e0\uff1a\u30a2\u30d7\u30ea\u30b3\u30f3\u30c6\u30ca\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u3066\u3044\u308b\u304c\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u304c\u307e\u3060\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3066\u3044\u308b\u3001\u4e0a\u6d41\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u3066\u5fdc\u7b54\u3057\u306a\u3044\u3001Kubernetes\u30dd\u30c3\u30c9\u304cCrashLoopBackOff\u72b6\u614b\u3001Nginx\u30ef\u30fc\u30ab\u30fc\u306e\u8aa4\u8a2d\u5b9a\u3001\u30d7\u30ed\u30ad\u30b7\u3068\u4e0a\u6d41\u9593\u306e\u63a5\u7d9a\u30ea\u30bb\u30c3\u30c8\u3002502\u306f\u591a\u5c64\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u975e\u5e38\u306b\u91cd\u8981\u306a\u4fe1\u53f7\u3067\u3042\u308a\u3001\u300c\u30a8\u30c3\u30b8\u306f\u6b63\u5e38\u3067\u554f\u984c\u306f1\u30db\u30c3\u30d7\u5148\u306b\u3042\u308b\u300d\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<h4 id='\u4fee\u6b63\u65b9\u6cd5-2'  id=\"boomdevs_15\">\u4fee\u6b63\u65b9\u6cd5<\/h4>\n<p><strong>\u8fc5\u901f\u306a\u5bfe\u5fdc\uff1a<\/strong> \u4e0d\u5065\u5eb7\u306a\u4e0a\u6d41\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u518d\u8d77\u52d5\u307e\u305f\u306f\u4ea4\u63db\u3057\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306e\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u304c\u6b7b\u3093\u3060\u30ce\u30fc\u30c9\u3092\u78ba\u5b9f\u306b\u9664\u5916\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u672c\u8cea\u7684\u306a\u4fee\u6b63\uff1a<\/strong> \u306a\u305c\u4e0a\u6d41\u304c\u4e0d\u6b63\u306a\u5fdc\u7b54\u3092\u8fd4\u3057\u305f\u306e\u304b\u8abf\u67fb\u3057\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u304c\u4e0a\u6d41\u306e\u5b9f\u969b\u306e\u5fdc\u7b54\u6642\u9593\u3088\u308a\u77ed\u3044\u304b\u3001\u30dd\u30c3\u30c9\u304c\u8d77\u52d5\u6642\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u30eb\u30fc\u30d7\u3057\u3066\u3044\u306a\u3044\u304b\u3001\u63a5\u7d9a\u306e\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u8a2d\u5b9a\u304c\u4e21\u5074\u3067\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3002<\/p>\n<h3 id='503-service-unavailable'  id=\"boomdevs_16\">503 Service Unavailable<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u304c\u4e00\u6642\u7684\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3067\u304d\u307e\u305b\u3093\u3002\u5bb9\u91cf\u67af\u6e07\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u3001\u30aa\u30fc\u30c8\u30b9\u30b1\u30fc\u30e9\u30fc\u304c\u307e\u3060\u8d77\u52d5\u4e2d\u3002<\/p>\n<p><strong>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u308b\u3079\u304d\u3053\u3068\uff1a<\/strong> \u30ea\u30bd\u30fc\u30b9\u98fd\u548c\u3068\u30ec\u30fc\u30c8\u5236\u9650\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u30d1\u30a4\u30af\u6642\u306e503\u306f\u30aa\u30fc\u30c8\u30b9\u30b1\u30fc\u30e9\u30fc\u304c\u8ffd\u3044\u3064\u3051\u306a\u3044\u304b\u63a5\u7d9a\u5236\u9650\u306b\u9054\u3057\u305f\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002\u901a\u5e38\u6642\u306e503\u306f\u30d7\u30ed\u30bb\u30b9\u304c\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u304b\u30ad\u30e5\u30fc\u9045\u5ef6\u306e\u53ef\u80fd\u6027\u3002\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u3088\u3063\u3066\u306f\u4e0a\u6d41WAF\u3084\u30a2\u30f3\u30c1\u30dc\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u30ec\u30fc\u30c8\u5236\u9650\u3067503\u3092\u8fd4\u3059\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u304c\u539f\u56e0\u3068\u6c7a\u3081\u3064\u3051\u308b\u524d\u306b\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h4 id='\u4fee\u6b63\u65b9\u6cd5-3'  id=\"boomdevs_17\">\u4fee\u6b63\u65b9\u6cd5<\/h4>\n<p><strong>\u8fc5\u901f\u306a\u5bfe\u5fdc\uff1a<\/strong> <code>Retry-After<\/code>\u30d8\u30c3\u30c0\u30fc\u3092\u4ed8\u3051\u3066503\u3092\u8fd4\u3057\u3001\u5065\u5168\u306a\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3084\u30af\u30ed\u30fc\u30e9\u30fc\u304c\u30b5\u30fc\u30d0\u30fc\u3092\u904e\u8ca0\u8377\u306b\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002PHP\u4f8b\uff1a<\/p>\n<pre><code>http_response_code(503);\nheader('Retry-After: 60');<\/code><\/pre>\n<p><strong>\u672c\u8cea\u7684\u306a\u4fee\u6b63\uff1a<\/strong> \u98fd\u548c\u3057\u305f\u30ea\u30bd\u30fc\u30b9\uff08\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3001\u30ef\u30fc\u30ab\u30fc\u30d7\u30fc\u30eb\u3001\u30aa\u30fc\u30c8\u30b9\u30b1\u30fc\u30e9\u30fc\u4e0a\u9650\uff09\u3092\u898b\u3064\u3051\u3066\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u89e3\u6d88\u3057\u307e\u3059\u3002CDN\u3084WAF\u306e\u30ec\u30fc\u30c8\u30ea\u30df\u30c3\u30c8\u8d77\u56e0\u306e\u5834\u5408\u306f\u4e0a\u9650\u5f15\u304d\u4e0a\u3052\u304b\u6b63\u5f53\u306a\u547c\u3073\u51fa\u3057\u5143\u306e\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u5316\u3092\u3002<\/p>\n<h2 id='\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u305d\u306e\u4ed6\u306e\u30b3\u30fc\u30c9'  id=\"boomdevs_18\">\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u305d\u306e\u4ed6\u306e\u30b3\u30fc\u30c9<\/h2>\n<p>\u4e0a\u8a18\u306e10\u30b3\u30fc\u30c9\u306f\u307b\u3068\u3093\u3069\u306e\u672c\u756a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u73fe\u5834\u3067\u5341\u5206\u3088\u304f\u898b\u304b\u3051\u308b\u4ed6\u306e\u30b3\u30fc\u30c9\u3082\u3042\u308a\u3001\u30aa\u30f3\u30b3\u30fc\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u4e00\u76ee\u3067\u308f\u304b\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>304 Not Modified.<\/strong> \u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u307e\u3060\u65b0\u9bae\u306a\u3068\u304d\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002CDN\u7d4c\u7531\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u4e00\u822c\u7684\u3067\u3059\u3002304\u304c\u6e1b\u5c11\u3059\u308b\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u30d8\u30c3\u30c0\u30fc\u306e\u5909\u66f4\u3092\u793a\u3057\u3001\u304b\u3064\u3066\u7bc0\u7d04\u3057\u3066\u3044\u305f\u30aa\u30ea\u30b8\u30f3\u306e\u5e2f\u57df\u3092\u6d88\u8cbb\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>307 Temporary Redirect.<\/strong> 302\u306b\u4f3c\u307e\u3059\u304cHTTP\u30e1\u30bd\u30c3\u30c9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002POST\u306fPOST\u306e\u307e\u307e\u3002\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3084\u975e\u51aa\u7b49API\u547c\u3073\u51fa\u3057\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u306f302\u3067\u306f\u306a\u304f307\u3092\u4f7f\u3044\u307e\u3059\u3002<\/li>\n<li><strong>308 Permanent Redirect.<\/strong> 301\u306b\u4f3c\u307e\u3059\u304cHTTP\u30e1\u30bd\u30c3\u30c9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002POST\u3001PUT\u3001PATCH\u3001DELETE\u3092\u6271\u3046API\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u6052\u4e45\u7684\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u73fe\u4ee3\u7684\u9078\u629e\u80a2\u3067\u3059\u3002<\/li>\n<li><strong>429 Too Many Requests.<\/strong> \u30ec\u30fc\u30c8\u5236\u9650\u3002\u4e0a\u6d41API\u306b\u3088\u308a\u30b9\u30ed\u30c3\u30c8\u30eb\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u81ea\u5206\u304c\u8ab0\u304b\u3092\u30b9\u30ed\u30c3\u30c8\u30eb\u3057\u3066\u3044\u307e\u3059\u3002<code>Retry-After<\/code>\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3057\u3001\u5c0a\u91cd\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>504 Gateway Timeout.<\/strong> \u30d7\u30ed\u30ad\u30b7\u304c\u4e0a\u6d41\u306e\u5fdc\u7b54\u5f85\u3061\u3092\u653e\u68c4\u3057\u307e\u3057\u305f\u3002502\u3068\u306e\u9055\u3044\u306f\u3001\u4e0a\u6d41\u304c\u60aa\u3044\u5fdc\u7b54\u3092\u8fd4\u3057\u305f\u306e\u3067\u306f\u306a\u304f\u3001\u6642\u9593\u5185\u306b\u5fdc\u7b54\u3092\u8fd4\u3055\u306a\u304b\u3063\u305f\u3053\u3068\u3002\u901a\u5e38\u306f\u9577\u6642\u9593\u306e\u30af\u30a8\u30ea\u3001\u505c\u6b62\u3057\u305f\u30ef\u30fc\u30ab\u30fc\u3001\u9045\u3044\u4e0b\u6d41API\u3002<\/li>\n<\/ul>\n<h3 id='301-vs-302-vs-307-vs-308'  id=\"boomdevs_19\">301 vs 302 vs 307 vs 308<\/h3>\n<p>\u3053\u306e4\u3064\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30b3\u30fc\u30c9\u306f\u3088\u304f\u6df7\u540c\u3055\u308c\u307e\u3059\u3002\u9055\u3044\u306f2\u3064\uff1a\u79fb\u52d5\u304c\u6052\u4e45\u7684\u304b\u3001\u4e00\u6642\u7684\u304b\u3001HTTP\u30e1\u30bd\u30c3\u30c9\u304c\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u901a\u3058\u3066\u4fdd\u6301\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table class=\"compare\">\n<thead>\n<tr>\n<th>\u52d5\u4f5c<\/th>\n<th>301<\/th>\n<th>302<\/th>\n<th>307<\/th>\n<th>308<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6052\u4e45\u6027<\/td>\n<td>\u6052\u4e45\u7684<\/td>\n<td>\u4e00\u6642\u7684<\/td>\n<td>\u4e00\u6642\u7684<\/td>\n<td>\u6052\u4e45\u7684<\/td>\n<\/tr>\n<tr>\n<td>\u30e1\u30bd\u30c3\u30c9\u4fdd\u6301<\/td>\n<td>\u4fdd\u8a3c\u3057\u306a\u3044<\/td>\n<td>\u4fdd\u8a3c\u3057\u306a\u3044<\/td>\n<td>\u4fdd\u6301\u3059\u308b<\/td>\n<td>\u4fdd\u6301\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30ad\u30e3\u30c3\u30b7\u30e5<\/td>\n<td>\u7a4d\u6975\u7684\u306b\u30ad\u30e3\u30c3\u30b7\u30e5<\/td>\n<td>\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044<\/td>\n<td>\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044<\/td>\n<td>\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30ea\u30f3\u30af\u30a8\u30af\u30a4\u30c6\u30a3\u306e\u7d99\u627f<\/td>\n<td>\u307b\u3068\u3093\u3069\u7d99\u627f<\/td>\n<td>\u9650\u5b9a\u7684\u306b\u7d99\u627f<\/td>\n<td>\u9650\u5b9a\u7684\u306b\u7d99\u627f<\/td>\n<td>\u307b\u3068\u3093\u3069\u7d99\u627f<\/td>\n<\/tr>\n<tr>\n<td>\u4f7f\u7528\u30bf\u30a4\u30df\u30f3\u30b0<\/td>\n<td>\u6052\u4e45\u7684\u306aURL\u79fb\u52d5<\/td>\n<td>\u77ed\u671f\u9593\u306e\u5909\u66f4<\/td>\n<td>\u30d5\u30a9\u30fc\u30e0\u3084POST\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/td>\n<td>API\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u6052\u4e45\u79fb\u52d5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u6052\u4e45\u7684\u306b\u79fb\u52d5\u3057\u305f\u901a\u5e38\u306e\u30da\u30fc\u30b8\u306f301\u3092\u4f7f\u3044\u307e\u3059\u3002POST\u3092POST\u306e\u307e\u307e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4e00\u6642\u7684\u306a\u3089307\u3001\u6052\u4e45\u7684\u306a\u3089308\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 id='\u5b8c\u5168\u306ahttp\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9'  id=\"boomdevs_20\">\u5b8c\u5168\u306aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h2>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u5b9f\u969b\u306e\u30a2\u30e9\u30fc\u30c8\u306e\u307b\u3068\u3093\u3069\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002\u56db\u534a\u671f\u306b\u4e00\u5ea6\u73fe\u308c\u8abf\u67fb\u304c\u5fc5\u8981\u306b\u306a\u308b\u73cd\u3057\u3044\u30b3\u30fc\u30c9\u306b\u306f\u3001\u6a19\u6e96\u306e\u5b8c\u5168\u30ea\u30b9\u30c8\u3068\u5171\u306b\u4e00\u822c\u7684\u306a\u30a4\u30f3\u30d5\u30e9\u30d9\u30f3\u30c0\u30fc\u72ec\u81ea\u306e\u975e\u6a19\u6e96\u30b3\u30fc\u30c9\u3082\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3 id='1xx-\u60c5\u5831\u5fdc\u7b54'  id=\"boomdevs_21\">1xx \u60c5\u5831\u5fdc\u7b54<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u51e6\u7406\u3092\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u591a\u304f\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30d7\u30ed\u30ad\u30b7\u304c\u900f\u904e\u7684\u306b\u51e6\u7406\u3059\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u3067\u898b\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>100<\/td>\n<td>Continue<\/td>\n<\/tr>\n<tr>\n<td>101<\/td>\n<td>Switching Protocols<\/td>\n<\/tr>\n<tr>\n<td>102<\/td>\n<td>Processing<\/td>\n<\/tr>\n<tr>\n<td>103<\/td>\n<td>Early Hints<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id='2xx-\u6210\u529f'  id=\"boomdevs_22\">2xx \u6210\u529f<\/h3>\n<p>\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u53d7\u3051\u5165\u308c\u3089\u308c\u7406\u89e3\u3055\u308c\u307e\u3057\u305f\u3002200\u304c\u4e3b\u529b\u3067\u3001\u305d\u306e\u4ed6\u306fAPI\u3084\u90e8\u5206\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u3001WebDAV\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u6642\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>200<\/td>\n<td>OK<\/td>\n<\/tr>\n<tr>\n<td>201<\/td>\n<td>Created<\/td>\n<\/tr>\n<tr>\n<td>202<\/td>\n<td>Accepted<\/td>\n<\/tr>\n<tr>\n<td>203<\/td>\n<td>Non-Authoritative Information<\/td>\n<\/tr>\n<tr>\n<td>204<\/td>\n<td>No Content<\/td>\n<\/tr>\n<tr>\n<td>205<\/td>\n<td>Reset Content<\/td>\n<\/tr>\n<tr>\n<td>206<\/td>\n<td>Partial Content<\/td>\n<\/tr>\n<tr>\n<td>207<\/td>\n<td>Multi-Status<\/td>\n<\/tr>\n<tr>\n<td>208<\/td>\n<td>Already Reported<\/td>\n<\/tr>\n<tr>\n<td>226<\/td>\n<td>IM Used<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id='3xx-\u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3'  id=\"boomdevs_23\">3xx \u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3<\/h3>\n<p>\u30ea\u30bd\u30fc\u30b9\u306f\u5225\u306e\u5834\u6240\u306b\u3042\u308a\u307e\u3059\u3001\u307e\u305f\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u30b3\u30d4\u30fc\u304c\u6709\u52b9\u3067\u3059\u3002301\u3068302\u304c\u4e3b\u6d41\u3067\u3001307\/308\u306fAPI\u3001304\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>300<\/td>\n<td>Multiple Choices<\/td>\n<\/tr>\n<tr>\n<td>301<\/td>\n<td>Moved Permanently<\/td>\n<\/tr>\n<tr>\n<td>302<\/td>\n<td>Found<\/td>\n<\/tr>\n<tr>\n<td>303<\/td>\n<td>See Other<\/td>\n<\/tr>\n<tr>\n<td>304<\/td>\n<td>Not Modified<\/td>\n<\/tr>\n<tr>\n<td>305<\/td>\n<td>Use Proxy (deprecated)<\/td>\n<\/tr>\n<tr>\n<td>306<\/td>\n<td>Switch Proxy (unused)<\/td>\n<\/tr>\n<tr>\n<td>307<\/td>\n<td>Temporary Redirect<\/td>\n<\/tr>\n<tr>\n<td>308<\/td>\n<td>Permanent Redirect<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id='4xx-\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a8\u30e9\u30fc'  id=\"boomdevs_24\">4xx \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a8\u30e9\u30fc<\/h3>\n<p>\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002\u591a\u304f\u306f\u898b\u304b\u3051\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3088\u304f\u3042\u308b6\u3064\u306f\u6bce\u65e5\u898b\u307e\u3059\u3002418\u3084451\u306e\u3088\u3046\u306a\u73cd\u3057\u3044\u30b3\u30fc\u30c9\u3082\u5b58\u5728\u3059\u308b\u306e\u3067\u3001\u7121\u99c4\u306a\u63a8\u6e2c\u3092\u3057\u306a\u3044\u305f\u3081\u306b\u77e5\u3063\u3066\u304a\u304f\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>400<\/td>\n<td>Bad Request<\/td>\n<\/tr>\n<tr>\n<td>401<\/td>\n<td>Unauthorized<\/td>\n<\/tr>\n<tr>\n<td>402<\/td>\n<td>Payment Required<\/td>\n<\/tr>\n<tr>\n<td>403<\/td>\n<td>Forbidden<\/td>\n<\/tr>\n<tr>\n<td>404<\/td>\n<td>Not Found<\/td>\n<\/tr>\n<tr>\n<td>405<\/td>\n<td>Method Not Allowed<\/td>\n<\/tr>\n<tr>\n<td>406<\/td>\n<td>Not Acceptable<\/td>\n<\/tr>\n<tr>\n<td>407<\/td>\n<td>Proxy Authentication Required<\/td>\n<\/tr>\n<tr>\n<td>408<\/td>\n<td>Request Timeout<\/td>\n<\/tr>\n<tr>\n<td>409<\/td>\n<td>Conflict<\/td>\n<\/tr>\n<tr>\n<td>410<\/td>\n<td>Gone<\/td>\n<\/tr>\n<tr>\n<td>411<\/td>\n<td>Length Required<\/td>\n<\/tr>\n<tr>\n<td>412<\/td>\n<td>Precondition Failed<\/td>\n<\/tr>\n<tr>\n<td>413<\/td>\n<td>Payload Too Large<\/td>\n<\/tr>\n<tr>\n<td>414<\/td>\n<td>URI Too Long<\/td>\n<\/tr>\n<tr>\n<td>415<\/td>\n<td>Unsupported Media Type<\/td>\n<\/tr>\n<tr>\n<td>416<\/td>\n<td>Range Not Satisfiable<\/td>\n<\/tr>\n<tr>\n<td>417<\/td>\n<td>Expectation Failed<\/td>\n<\/tr>\n<tr>\n<td>418<\/td>\n<td>I&#8217;m a teapot<\/td>\n<\/tr>\n<tr>\n<td>421<\/td>\n<td>Misdirected Request<\/td>\n<\/tr>\n<tr>\n<td>422<\/td>\n<td>Unprocessable Content<\/td>\n<\/tr>\n<tr>\n<td>423<\/td>\n<td>Locked<\/td>\n<\/tr>\n<tr>\n<td>424<\/td>\n<td>Failed Dependency<\/td>\n<\/tr>\n<tr>\n<td>425<\/td>\n<td>Too Early<\/td>\n<\/tr>\n<tr>\n<td>426<\/td>\n<td>Upgrade Required<\/td>\n<\/tr>\n<tr>\n<td>428<\/td>\n<td>Precondition Required<\/td>\n<\/tr>\n<tr>\n<td>429<\/td>\n<td>Too Many Requests<\/td>\n<\/tr>\n<tr>\n<td>431<\/td>\n<td>Request Header Fields Too Large<\/td>\n<\/tr>\n<tr>\n<td>451<\/td>\n<td>Unavailable For Legal Reasons<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id='5xx-\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc'  id=\"boomdevs_25\">5xx \u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc<\/h3>\n<p>\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u6b63\u5e38\u3067\u3057\u305f\u304c\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u4f55\u304b\u304c\u5931\u6557\u3057\u307e\u3057\u305f\u3002\u4eba\u3092\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u6700\u3082\u9ad8\u3044\u30b3\u30fc\u30c9\u7fa4\u3067\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>500<\/td>\n<td>Internal Server Error<\/td>\n<\/tr>\n<tr>\n<td>501<\/td>\n<td>Not Implemented<\/td>\n<\/tr>\n<tr>\n<td>502<\/td>\n<td>Bad Gateway<\/td>\n<\/tr>\n<tr>\n<td>503<\/td>\n<td>Service Unavailable<\/td>\n<\/tr>\n<tr>\n<td>504<\/td>\n<td>Gateway Timeout<\/td>\n<\/tr>\n<tr>\n<td>505<\/td>\n<td>HTTP Version Not Supported<\/td>\n<\/tr>\n<tr>\n<td>506<\/td>\n<td>Variant Also Negotiates<\/td>\n<\/tr>\n<tr>\n<td>507<\/td>\n<td>Insufficient Storage<\/td>\n<\/tr>\n<tr>\n<td>508<\/td>\n<td>Loop Detected<\/td>\n<\/tr>\n<tr>\n<td>510<\/td>\n<td>Not Extended<\/td>\n<\/tr>\n<tr>\n<td>511<\/td>\n<td>Network Authentication Required<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id='\u975e\u6a19\u6e96\u304a\u3088\u3073\u30d9\u30f3\u30c0\u30fc\u56fa\u6709\u30b3\u30fc\u30c9'  id=\"boomdevs_26\">\u975e\u6a19\u6e96\u304a\u3088\u3073\u30d9\u30f3\u30c0\u30fc\u56fa\u6709\u30b3\u30fc\u30c9<\/h3>\n<p>Cloudflare\u3001Nginx\u3001Microsoft\u3001Akamai\u306f\u516c\u5f0f\u4ed5\u69d8\u5916\u306e\u30b3\u30fc\u30c9\u3092\u8fd4\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30a8\u30c3\u30b8\u5074\u306e\u969c\u5bb3\u3092\u793a\u3059\u305f\u3081\u3001\u73fe\u5834\u3067\u898b\u5206\u3051\u3089\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"table-wrap\">\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>419<\/td>\n<td>Authentication Timeout<\/td>\n<\/tr>\n<tr>\n<td>420<\/td>\n<td>Enhance Your Calm \/ Method Failure<\/td>\n<\/tr>\n<tr>\n<td>440<\/td>\n<td>Login Timeout (Microsoft)<\/td>\n<\/tr>\n<tr>\n<td>444<\/td>\n<td>No Response (Nginx)<\/td>\n<\/tr>\n<tr>\n<td>449<\/td>\n<td>Retry With (Microsoft)<\/td>\n<\/tr>\n<tr>\n<td>450<\/td>\n<td>Blocked by Windows Parental Controls<\/td>\n<\/tr>\n<tr>\n<td>460<\/td>\n<td>Client Closed Connection<\/td>\n<\/tr>\n<tr>\n<td>494<\/td>\n<td>Request Header Too Large (Nginx)<\/td>\n<\/tr>\n<tr>\n<td>495<\/td>\n<td>SSL Certificate Error (Nginx)<\/td>\n<\/tr>\n<tr>\n<td>496<\/td>\n<td>SSL Certificate Required (Nginx)<\/td>\n<\/tr>\n<tr>\n<td>497<\/td>\n<td>HTTP Request Sent to HTTPS Port<\/td>\n<\/tr>\n<tr>\n<td>498<\/td>\n<td>Invalid Token<\/td>\n<\/tr>\n<tr>\n<td>499<\/td>\n<td>Client Closed Request (Nginx)<\/td>\n<\/tr>\n<tr>\n<td>509<\/td>\n<td>Bandwidth Limit Exceeded<\/td>\n<\/tr>\n<tr>\n<td>520<\/td>\n<td>Unknown Error (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>521<\/td>\n<td>Web Server Is Down (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>522<\/td>\n<td>Connection Timed Out (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>523<\/td>\n<td>Origin Is Unreachable (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>524<\/td>\n<td>A Timeout Occurred (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>525<\/td>\n<td>SSL Handshake Failed (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>526<\/td>\n<td>Invalid SSL Certificate (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>527<\/td>\n<td>Railgun Error (Cloudflare)<\/td>\n<\/tr>\n<tr>\n<td>529<\/td>\n<td>Site Overloaded<\/td>\n<\/tr>\n<tr>\n<td>530<\/td>\n<td>Site Frozen \/ Origin DNS Error<\/td>\n<\/tr>\n<tr>\n<td>561<\/td>\n<td>Unauthorized (Akamai)<\/td>\n<\/tr>\n<tr>\n<td>598<\/td>\n<td>Network Read Timeout<\/td>\n<\/tr>\n<tr>\n<td>599<\/td>\n<td>Network Connect Timeout<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4e0a\u306b\u306a\u3044\u30b3\u30fc\u30c9\u7bc4\u56f2\uff08104-199\u3001209-225\u3001227-299\u3001309-399\u3001432-450\u3001452-499\u3001512-599\uff09\u306f\u672a\u5272\u308a\u5f53\u3066\u3001\u975e\u63a8\u5968\u3001\u307e\u305f\u306f\u30d9\u30f3\u30c0\u30fc\u56fa\u6709\u3068\u3057\u3066\u4e88\u7d04\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b3\u30fc\u30c9\u306f\u30a4\u30f3\u30d5\u30e9\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id='\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u5b9f\u969b\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3059\u3079\u304d\u30b3\u30fc\u30c9'  id=\"boomdevs_27\">\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u5b9f\u969b\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3059\u3079\u304d\u30b3\u30fc\u30c9<\/h3>\n<p>60\u4ee5\u4e0a\u3042\u308b\u30b3\u30fc\u30c9\u306e\u4e2d\u3067\u3001\u591a\u304f\u306e\u672c\u756a\u74b0\u5883\u3067\u30a2\u30e9\u30fc\u30c8\u95be\u5024\u306b\u9054\u3059\u308b\u306e\u306f\u3088\u308a\u5c11\u6570\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>200<\/strong>\u2014\u57fa\u672c\u7684\u306a\u6bd4\u7387\u3068\u3057\u3066\u3002\u6025\u6fc0\u306a\u6e1b\u5c11\u306f\u5225\u306e\u554f\u984c\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>301\u3001302\u3001307\u3001308<\/strong>\u2014\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u56de\u6570\u3002\u30b9\u30d1\u30a4\u30af\u306f\u8aa4\u8a2d\u5b9a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u30ab\u30ce\u30cb\u30ab\u30ebURL\u306e\u7834\u640d\u3092\u793a\u3059\u3002<\/li>\n<li><strong>400<\/strong>\u2014\u4e0d\u6b63\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3002\u901a\u5e38\u306f\u6d88\u8cbb\u8005\u5074\u306e\u5909\u66f4\u3002<\/li>\n<li><strong>401\u3001403<\/strong>\u2014\u8a8d\u8a3c\u30fb\u6a29\u9650\u30a8\u30e9\u30fc\u3002\u3057\u3070\u3057\u3070\u30c8\u30fc\u30af\u30f3\u3001IAM\u3001WAF\u306e\u5909\u66f4\u3002<\/li>\n<li><strong>404<\/strong>\u2014\u30ea\u30bd\u30fc\u30b9\u6b20\u640d\u3002\u5358\u767a\u306f\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30ce\u30a4\u30ba\uff1b\u8907\u6570\u306f\u30ea\u30ea\u30fc\u30b9\u554f\u984c\u3002<\/li>\n<li><strong>408<\/strong>\u2014\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3002\u6301\u7d9a\u7684\u306a\u3089\u30a2\u30e9\u30fc\u30c8\u306b\u5024\u3002\u4e0b\u6d41\u9045\u5ef6\u306e\u30b5\u30a4\u30f3\u3002<\/li>\n<li><strong>429<\/strong>\u2014\u30ec\u30fc\u30c8\u5236\u9650\u3002\u6069\u6075\u3092\u53d7\u3051\u308b\u304b\u3001\u81ea\u5206\u304c\u304b\u3051\u3066\u3044\u308b\u304b\u3002<\/li>\n<li><strong>500\u3001502\u3001503\u3001504<\/strong>\u2014\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u4e0a\u6d41\u3001\u5bb9\u91cf\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u969c\u5bb3\u3002\u7dca\u6025\u5bfe\u5fdc\u3002<\/li>\n<li><strong>520-526<\/strong>\u2014Cloudflare\u30a8\u30c3\u30b8\u969c\u5bb3\u3002Cloudflare\u306e\u80cc\u5f8c\u306a\u3089\u91cd\u8981\u306a\u30b7\u30b0\u30ca\u30eb\u3002<\/li>\n<\/ul>\n<p>\u305d\u306e\u4ed6\u306f\u30ed\u30b0\u306b\u306f\u6b8b\u3059\u4fa1\u5024\u304c\u3042\u308b\u304c\u3001\u6ec5\u591a\u306b\u8d77\u3053\u3063\u3066\u3082\u8ab0\u304b\u3092\u8d77\u3053\u3059\u307b\u3069\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2 id='\u30da\u30fc\u30b8\u306ehttp\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5'  id=\"boomdevs_28\">\u30da\u30fc\u30b8\u306eHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u3044\u3066\u884c\u52d5\u3059\u308b\u524d\u306b\u3001\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u901f\u3044\u9806\u306b3\u3064\u306e\u65b9\u6cd5\u3002<\/p>\n<h3 id='chrome-devtools\u3067'  id=\"boomdevs_29\">Chrome DevTools\u3067<\/h3>\n<ol>\n<li>\u30da\u30fc\u30b8\u3092\u958b\u304f\u3002<\/li>\n<li>\u4efb\u610f\u306e\u5834\u6240\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u691c\u8a3c\u3092\u9078\u629e\u3001Network\u30bf\u30d6\u3092\u958b\u304f\u3002<\/li>\n<li>\u30ea\u30ed\u30fc\u30c9\u3002\u6700\u521d\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u306eStatus\u5217\u306b\u30b3\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<\/ol>\n<h3 id='\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089'  id=\"boomdevs_30\">\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089<\/h3>\n<p>\u30d8\u30c3\u30c0\u30fc\u306e\u307f\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u672c\u6587\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u305b\u305a\u306b\u30b9\u30c6\u30fc\u30bf\u30b9\u884c\u3092\u8fd4\u3057\u307e\u3059\uff1a<\/p>\n<pre><code>curl -I https:\/\/example.com<\/code><\/pre>\n<p>\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u6700\u521d\u306e\u884c\u304c\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3001\u4f8b\u3048\u3070<code>HTTP\/2 200<\/code>\u3067\u3059\u3002<\/p>\n<h3 id='\u5927\u898f\u6a21\u306b'  id=\"boomdevs_31\">\u5927\u898f\u6a21\u306b<\/h3>\n<p>\u5358\u767a\u30c1\u30a7\u30c3\u30af\u306f\u73fe\u5728\u306e\u72b6\u614b\u3092\u6559\u3048\u3066\u304f\u308c\u307e\u3059\u30023\u6642\u306b\u8d77\u3053\u308b\u969c\u5bb3\u3092\u898b\u9003\u3057\u307e\u3059\u3002\u65ad\u7d9a\u7684\u969c\u5bb3\u3092\u6355\u3089\u3048\u308b\u306b\u306f\u8907\u6570\u5730\u57df\u304b\u3089\u306e\u5b9a\u671f\u7684\u30c1\u30a7\u30c3\u30af\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u3053\u308c\u306f<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e3%82%bd%e3%83%aa%e3%83%a5%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3\/synthetic-monitoring\/\">\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u306b\u3088\u308a\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<h2 id='200-ok\u304c\u5618\u3092\u3064\u304f\u3068\u304d'  id=\"boomdevs_32\">200 OK\u304c\u5618\u3092\u3064\u304f\u3068\u304d<\/h2>\n<p>\u3042\u308b\u706b\u66dc\u65e5\u5348\u524d11\u6642\u3001e\u30b3\u30de\u30fc\u30b9\u30c1\u30fc\u30e0\u306b\u30da\u30fc\u30b8\u30e3\u30fc\u304c\u9cf4\u308b\u3002\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u304c80%\u4f4e\u4e0b\u3002\u7a3c\u50cd\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u78ba\u8a8d\u3002\u3059\u3079\u3066\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306f\u7dd1\u3002\u3059\u3079\u3066\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f200\u3002\u3059\u3079\u3066\u306e\u5730\u57df\u304c\u30b5\u30a4\u30c8\u7a3c\u50cd\u3092\u5831\u544a\u3002<\/p>\n<p>\u5b9f\u306f\u30b5\u30a4\u30c8\u306f\u7a3c\u50cd\u3057\u3066\u3044\u306a\u3044\u300240\u5206\u524d\u306e\u30c7\u30d7\u30ed\u30a4\u3067\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30da\u30fc\u30b8\u306eJavaScript\u30d0\u30f3\u30c9\u30eb\u304c\u4f8b\u5916\u3092\u6295\u3052\u3066\u3044\u308b\u3002HTML\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u3001\u30b5\u30fc\u30d0\u30fc\u306f200\u3092\u8fd4\u3057\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30e2\u30cb\u30bf\u30fc\u306f200\u3092\u898b\u3066\u30a2\u30e9\u30fc\u30c8\u306f\u767a\u52d5\u305b\u305a\u3002\u30e6\u30fc\u30b6\u30fc\u306f\u7a7a\u306e\u30ab\u30fc\u30c8\u3092\u898b\u3066\u96e2\u8131\u3002<\/p>\n<p>\u3053\u308c\u306f\u7d14\u7c8b\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u76e3\u8996\u3067\u306f\u691c\u77e5\u3067\u304d\u306a\u3044\u5931\u6557\u30e2\u30fc\u30c9\u3067\u3059\u3002\u89e3\u6c7a\u7b56\u306f\u591a\u5c64\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u8981\u306a\u30e6\u30fc\u30b6\u30fc\u30d1\u30b9\uff08\u30db\u30fc\u30e0\u3001\u691c\u7d22\u3001\u5546\u54c1\u3001\u30ab\u30fc\u30c8\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\uff09\u3067\u5b9f\u969b\u306e\u30d6\u30e9\u30a6\u30b6\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046<\/strong>\u3002\u30d6\u30e9\u30a6\u30b6\u306fJavaScript\u3092\u5b9f\u884c\u3057\u3001curl\u30b9\u30bf\u30a4\u30eb\u306e\u30c1\u30a7\u30c3\u30af\u3067\u898b\u9003\u3059\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3002<\/li>\n<li><strong>\u672c\u6587\u30ec\u30d9\u30eb\u306e\u4fe1\u53f7\u3092\u76e3\u8996<\/strong>\uff1a\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5b58\u5728\u3001\u8981\u7d20\u306e\u53ef\u8996\u6027\u3001\u671f\u5f85\u3055\u308c\u308b\u30ec\u30b9\u30dd\u30f3\u30b9\u69cb\u9020\u3002\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u307f\u3092\u4fe1\u7528\u3057\u306a\u3044\u3002<\/li>\n<li><strong>\u30c7\u30d7\u30ed\u30a4\u3068\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u7d50\u3073\u3064\u3051\u308b<\/strong>\uff1a\u30ea\u30ea\u30fc\u30b9\u5f8c15\u5206\u4ee5\u5185\u306b\u7dd1\u304b\u3089\u8d64\u306b\u5909\u308f\u308b\u30c1\u30a7\u30c3\u30af\u306b\u306f\u81ea\u52d5\u3067\u30c7\u30d7\u30ed\u30a4\u30bf\u30b0\u3092\u4ed8\u4e0e\u3002\u30dd\u30b9\u30c8\u30e2\u30fc\u30c6\u30e0\u3067\u4f55\u304c\u5909\u308f\u3063\u305f\u304b\u306e\u8abf\u67fb\u6642\u9593\u3092\u534a\u6e1b\u3002<\/li>\n<\/ul>\n<h3 id='\u30bd\u30d5\u30c8404\u3068\u306f'  id=\"boomdevs_33\">\u30bd\u30d5\u30c8404\u3068\u306f\uff1f<\/h3>\n<p>\u3053\u306e\u554f\u984c\u306e\u4e00\u5f62\u614b\u306b\u306f\u540d\u524d\u304c\u3042\u308a\u307e\u3059\uff1a\u30bd\u30d5\u30c8404\u3002\u30bd\u30d5\u30c8404\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u300c\u30da\u30fc\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u300d\u3068\u4f1d\u3048\u3064\u3064200 OK\u3092\u8fd4\u3059\u30da\u30fc\u30b8\u3067\u3059\u3002Google\u306e\u63a8\u5968\u306f\u5b9f\u969b\u306e404\u304b410\u3092\u8fd4\u3059\u3053\u3068\u3002\u30bd\u30d5\u30c8404\u306f\u30af\u30ed\u30fc\u30eb\u4e88\u7b97\u3092\u6d6a\u8cbb\u3057\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6df7\u4e71\u3092\u62db\u304d\u307e\u3059\u3002<\/p>\n<p>\u7d14\u7c8b\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30e2\u30cb\u30bf\u30fc\u3067\u306f\u30bd\u30d5\u30c8404\u3082\u58ca\u308c\u305f\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3082\u691c\u77e5\u3067\u304d\u307e\u305b\u3093\uff1a\u30b3\u30fc\u30c9\u306f200\u3060\u304b\u3089\u3067\u3059\u3002\u672c\u6587\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046\u5b9f\u969b\u306e\u30d6\u30e9\u30a6\u30b6\u30c1\u30a7\u30c3\u30af\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2 id='http\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068seo\u3078\u306e\u5f71\u97ff'  id=\"boomdevs_34\">HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3068SEO\u3078\u306e\u5f71\u97ff<\/h2>\n<p>\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u4f7f\u3044\u3001\u30af\u30ed\u30fc\u30eb\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u3001\u518d\u8a2a\u983b\u5ea6\u306e\u5224\u65ad\u3092\u3057\u307e\u3059\u3002\u91cd\u8981\u306a\u30d1\u30bf\u30fc\u30f3\u306f3\u3064\uff1a<\/p>\n<ul>\n<li><strong>4xx\u30b3\u30fc\u30c9\u306f\u6642\u9593\u7d4c\u904e\u3067\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6e1b\u3089\u3059\u3002<\/strong> \u8907\u6570\u56de404\u3092\u8fd4\u3059\u30da\u30fc\u30b8\u306f\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u30da\u30fc\u30b8\u3092\u524a\u9664\u3059\u308b\u5834\u5408\u306f404\u306b\u4efb\u305b\u305a301\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>5xx\u30b3\u30fc\u30c9\u306f\u30af\u30ed\u30fc\u30eb\u901f\u5ea6\u3092\u843d\u3068\u3057\u30e9\u30f3\u30ad\u30f3\u30b0\u3092\u4e0b\u3052\u308b\u3002<\/strong> Googlebot\u306f\u6301\u7d9a\u7684\u306a5xx\u3092\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306f\u4e0d\u5065\u5eb7\u300d\u3068\u89e3\u91c8\u3002\u30af\u30ed\u30fc\u30eb\u901f\u5ea6\u304c\u843d\u3061\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u3082\u9045\u5ef6\u3057\u3001\u30e9\u30f3\u30ad\u30f3\u30b0\u4f4e\u4e0b\u306e\u539f\u56e0\u306b\u3002<\/li>\n<li><strong>301\u3068302\u306e\u9055\u3044\u306f\u91cd\u8981\u3002<\/strong> 301\u306f\u30ea\u30f3\u30af\u30a8\u30af\u30a4\u30c6\u30a3\u3092\u6e21\u3059\u3002302\u306f\u4e00\u6642\u7684\u3068\u307f\u306a\u3055\u308c\u6e21\u3055\u306a\u3044\u3053\u3068\u3082\u3042\u308b\u3002\u79fb\u52d5\u304c\u6052\u4e45\u7684\u306a\u3089301\u3092\u9078\u629e\u3002<\/li>\n<\/ul>\n<p>\u5b9f\u7528\u7684\u306a\u6559\u8a13\uff1a5xx\u306f\u5358\u306a\u308b\u53ef\u7528\u6027\u554f\u984c\u3067\u306f\u306a\u304f\u3001\u6301\u7d9a\u3059\u308c\u3070\u3059\u308b\u307b\u3069SEO\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3059\u554f\u984c\u3067\u3059\u3002<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/website-monitoring-errors-dns-tcp-tls-http\/\">DNS\u3001TCP\u3001TLS\u3001HTTP\u306e\u5404\u7a2e\u30a8\u30e9\u30fc<\/a>\u306f\u305d\u308c\u305e\u308c\u7570\u306a\u308bSEO\u30b3\u30b9\u30c8\u304c\u3042\u308a\u3001\u3069\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u969c\u5bb3\u304b\u3092\u77e5\u308b\u3053\u3068\u3067\u3088\u308a\u65e9\u3044\u30c8\u30ea\u30a2\u30fc\u30b8\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_33963\" aria-describedby=\"caption-attachment-33963\" style=\"width: 1536px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-33963\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/triage-flowchart.webp\" alt=\"HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u30a2\u30e9\u30fc\u30c8\u306e\u30c8\u30ea\u30a2\u30fc\u30b8\u7528\u610f\u601d\u6c7a\u5b9a\u30d5\u30ed\u30fc\u30c1\u30e3\u30fc\u30c8\u2014\u6700\u521d\u306b\u3069\u306e\u30ec\u30a4\u30e4\u30fc\u3092\u78ba\u8a8d\u3057\u3001\u3044\u3064\u30aa\u30f3\u30b3\u30fc\u30eb\u3092\u547c\u3073\u3001\u3044\u3064\u30c7\u30d7\u30ed\u30a4\u3092\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u3079\u304d\u304b\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/triage-flowchart.webp 1536w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/triage-flowchart-300x200.webp 300w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/triage-flowchart-1024x683.webp 1024w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2024\/12\/triage-flowchart-768x512.webp 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><figcaption id=\"caption-attachment-33963\" class=\"wp-caption-text\">\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304b\u3089\u6700\u521d\u306e\u8abf\u67fb\u30b9\u30c6\u30c3\u30d7\u307e\u3067\u306e\u7c21\u5358\u306a\u30c8\u30ea\u30a2\u30fc\u30b8\u7d4c\u8def\u3002<\/figcaption><\/figure>\n<h2 id='\u30a2\u30e9\u30fc\u30c8\u904e\u591a\u306b\u6eba\u308c\u305ahttp\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u76e3\u8996\u3059\u308b'  id=\"boomdevs_35\">\u30a2\u30e9\u30fc\u30c8\u904e\u591a\u306b\u6eba\u308c\u305aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u76e3\u8996\u3059\u308b<\/h2>\n<p>HTTP\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u76e3\u8996\u3059\u308b\u30c1\u30fc\u30e0\u306f\u6700\u7d42\u7684\u306b\u540c\u3058\u554f\u984c\u306b\u76f4\u9762\u3057\u307e\u3059\uff1a\u30a2\u30e9\u30fc\u30c8\u304c\u591a\u3059\u304e\u3066\u4fe1\u53f7\u304c\u8db3\u308a\u306a\u3044\u3002\u3044\u304f\u3064\u304b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u76e3\u8996\u3092\u6709\u7528\u304b\u3064\u30ce\u30a4\u30ba\u30ec\u30b9\u306b\u4fdd\u3061\u307e\u3059\u3002<\/p>\n<p><strong>\u5358\u4e00\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u306a\u304f\u5272\u5408\u3067\u30a2\u30e9\u30fc\u30c8\u3002<\/strong> 1\u4ef6\u306e500\u306f\u30ce\u30a4\u30ba\u30025\u5206\u9593\u306b50\u4ef6\u306f\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3002\u901a\u5e38\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306b\u5fdc\u3058\u3066\u95be\u5024\u3092\u8a2d\u5b9a\u3002<\/p>\n<p><strong>\u30e6\u30fc\u30b6\u30fc\u5411\u3051\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u5185\u90e8\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u5206\u96e2\u3002<\/strong> \u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8API\u306e500\u306f\u5373\u6642\u901a\u77e5\u3002\u8ab0\u3082\u4f7f\u3063\u3066\u3044\u306a\u3044\u7ba1\u7406\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e500\u306f\u696d\u52d9\u6642\u9593\u307e\u3067\u5f85\u3064\u3002<\/p>\n<p><strong>\u30e6\u30fc\u30b6\u30fc\u6240\u5728\u5730\u304b\u3089\u30c6\u30b9\u30c8\u3002<\/strong> 1\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306e\u30c1\u30a7\u30c3\u30af\u3067\u306f\u5730\u57df\u7279\u6709\u306eCDN\u969c\u5bb3\u306f\u691c\u77e5\u3067\u304d\u307e\u305b\u3093\u3002\u8907\u6570\u5730\u57df\u304b\u3089\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u9867\u5ba2\u3088\u308a\u5148\u306b\u554f\u984c\u3092\u767a\u898b\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30fc\u30bf\u30b9\u30c1\u30a7\u30c3\u30af\u3068\u30b3\u30f3\u30c6\u30f3\u30c4\u30c1\u30a7\u30c3\u30af\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3002<\/strong> 200 OK\u306f\u51fa\u767a\u70b9\u3002\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u671f\u5f85\u3059\u308b\u5185\u5bb9\u304c\u5165\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u691c\u8a3c\u3002<\/p>\n<p>Dotcom-Monitor\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e8%a3%bd%e5%93%81\/web-application-monitoring\/\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u306f\u3053\u308c\u30894\u3064\u3059\u3079\u3066\u3092\u63d0\u4f9b\uff1a\u5272\u5408\u30a2\u30e9\u30fc\u30c8\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u5206\u5272\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u5b9f\u30d6\u30e9\u30a6\u30b6\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30c1\u30a7\u30c3\u30af\u3002API\u96c6\u4e2d\u74b0\u5883\u306b\u306f<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e8%a3%bd%e5%93%81\/web-api-monitoring\/\">API\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u304c\u30b9\u30ad\u30fc\u30de\u691c\u8a3c\u3084\u5fdc\u7b54\u6642\u9593SLO\u3092\u8ffd\u52a0\u3002\u3069\u3061\u3089\u3082<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e9%a1%94%e7%ab%8b%e3%81%a1\/%e7%89%b9%e5%be%b4%e3%82%a2%e3%83%a9%e3%83%bc%e3%83%88\/\">\u30a2\u30e9\u30fc\u30c8<\/a>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u7d71\u5408\u3055\u308c\u3066\u304a\u308a\u3001\u8907\u6570\u30d9\u30f3\u30c0\u30fc\u306e\u4fe1\u53f7\u3092\u7d99\u304e\u63a5\u304e\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2 id='\u307e\u3068\u3081'  id=\"boomdevs_36\">\u307e\u3068\u3081<\/h2>\n<p>\u6700\u3082\u4e00\u822c\u7684\u306aHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306f\u6570\u5e74\u5909\u308f\u3063\u3066\u3044\u307e\u305b\u3093\u3002200\u3001301\u3001404\u3001500\u3001502\u3001503\u2015\u4eca\u9031\u3082\u5168\u3066\u76ee\u306b\u3059\u308b\u3067\u3057\u3087\u3046\u3002\u5909\u308f\u308b\u306e\u306f\u300c\u30b3\u30fc\u30c9\u3092\u898b\u3066\u304b\u3089\u539f\u56e0\u3092\u76f4\u3059\u307e\u3067\u306e\u30b9\u30d4\u30fc\u30c9\u300d\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u5dee\u304c\u826f\u3044\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u4fa1\u5024\u3067\u3059\u3002\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3060\u3051\u3067\u306f\u300c\u4f55\u304b\u304c\u8d77\u304d\u305f\u300d\u3053\u3068\u3057\u304b\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u591a\u5c64\u30c1\u30a7\u30c3\u30af\u2015\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3001\u5b9f\u30d6\u30e9\u30a6\u30b6\u3001\u591a\u5730\u57df\u2015\u3067\u300c\u4f55\u304c\u3001\u3069\u3053\u3067\u3001\u6b21\u306b\u4f55\u3092\u3059\u3079\u304d\u304b\u300d\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3092\u4f53\u9a13\u3057\u305f\u3044\u306a\u3089\u3001<a 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