{"id":34063,"date":"2026-06-05T13:31:42","date_gmt":"2026-06-05T13:31:42","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/website-availability-monitoring\/"},"modified":"2026-06-05T13:38:21","modified_gmt":"2026-06-05T13:38:21","slug":"website-availability-monitoring","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/website-availability-monitoring\/","title":{"rendered":"\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u7a3c\u50cd\u76e3\u8996\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u5b9f\u7528\u30ac\u30a4\u30c9"},"content":{"rendered":"<img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-34037\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/hero-website-availability-monitoring.webp\" alt=\"Website availability monitoring dashboard showing multi-region uptime checks, alert routing, and a live incident status panel.\" width=\"1536\" height=\"1024\" 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OK\u3092\u8fd4\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7c73\u56fd\u304b\u3089\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u304c\u30e8\u30fc\u30ed\u30c3\u30d1\u3067\u306f\u6b7b\u3093\u3067\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6280\u8853\u7684\u306b\u306f\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u3082\u3001DNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u3066\u3044\u305f\u308a\u3001SSL\u8a3c\u660e\u66f8\u304c\u5348\u524d2\u6642\u306b\u671f\u9650\u5207\u308c\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u306b\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u5931\u6557\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u53ef\u7528\u6027\u76e3\u8996\u306e\u904b\u7528\u9762\u3092\u6271\u3044\u307e\u3059\uff1a\u4f55\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u3069\u3053\u304b\u3089\u30c1\u30a7\u30c3\u30af\u3057\u3001\u3069\u306e\u983b\u5ea6\u3067\u5b9f\u884c\u3057\u3001\u30a2\u30e9\u30fc\u30c8\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u4f55\u3092\u3059\u3079\u304d\u304b\u3002\u5bfe\u8c61\u306f\u5c02\u7528\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u6301\u3064SRE\u30c1\u30fc\u30e0\u3067\u306f\u306a\u304f\u3001\u81ea\u5206\u3067\u30b5\u30a4\u30c8\u3092\u904b\u55b6\u3059\u308b\u30aa\u30fc\u30ca\u30fc\u5411\u3051\u3067\u3059\u3002\u4fe1\u983c\u3067\u304d\u308b\u76e3\u8996\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3057\u3001\u901a\u77e5\u304c\u6765\u308b\u307e\u3067\u7121\u8996\u3067\u304d\u308b\u72b6\u614b\u3092\u76ee\u6307\u3057\u307e\u3059\u3002<\/p>\n<h2 id='\u5229\u7528\u53ef\u80fd-\u304c\u5b9f\u969b\u306b\u610f\u5473\u3059\u308b\u3053\u3068'  id=\"boomdevs_1\">\u300c\u5229\u7528\u53ef\u80fd\u300d\u304c\u5b9f\u969b\u306b\u610f\u5473\u3059\u308b\u3053\u3068<\/h2>\n<p>\u300c\u30b5\u30fc\u30d0\u30fc\u304c\u5fdc\u7b54\u3057\u305f\u300d\u3068\u300c\u30e6\u30fc\u30b6\u30fc\u304c\u4f55\u304b\u3092\u8cfc\u5165\u3067\u304d\u308b\u300d\u306e\u9593\u306b\u306f\u30ae\u30e3\u30c3\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u53ef\u7528\u6027\u76e3\u8996\u306f\u305d\u306e\u30ae\u30e3\u30c3\u30d7\u306e\u9593\u306b\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>\u57fa\u672c\u7684\u306a<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\/%e3%82%a2%e3%83%83%e3%83%97%e3%82%bf%e3%82%a4%e3%83%a0\/\">\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u76e3\u8996<\/a>\u30c1\u30a7\u30c3\u30af\u306fURL\u306bping\u3092\u9001\u308a\u3001200\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u63a2\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u6700\u4f4e\u9650\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u30c0\u30a6\u30f3\u3001DNS\u969c\u5bb3\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5230\u9054\u4e0d\u53ef\u3068\u3044\u3063\u305f\u58ca\u6ec5\u7684\u306a\u969c\u5bb3\u3092\u691c\u77e5\u3057\u307e\u3059\u304c\u3001\u3082\u3063\u3068\u7e4a\u7d30\u306a\u969c\u5bb3\u306f\u898b\u9003\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3067500\u30a8\u30e9\u30fc\u3092\u8fd4\u3059\u30da\u30a4\u30e1\u30f3\u30c8\u30d7\u30ed\u30bb\u30c3\u30b5\u3001\u7a7a\u767d\u30da\u30fc\u30b8\u3092\u8fd4\u3059CDN\u69cb\u6210\u3001Safari\u3067\u30ed\u30b0\u30a4\u30f3\u30dc\u30bf\u30f3\u3092\u58ca\u3059JavaScript\u30a8\u30e9\u30fc\u306a\u3069\u3067\u3059\u3002<\/p>\n<p>\u771f\u306e\u53ef\u7528\u6027\u76e3\u8996\u306f\u8907\u6570\u306e\u30c1\u30a7\u30c3\u30af\u3092\u91cd\u306d\u3001\u300c\u30b5\u30a4\u30c8\u304c\u7a3c\u50cd\u3057\u3066\u3044\u308b\u300d\u3068\u306f\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u3001\u5b9f\u969b\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u4f7f\u3044\u3001\u5b9f\u969b\u306e\u5834\u6240\u304b\u3089\u6765\u3066\u3001\u76ee\u7684\u3092\u9054\u6210\u3067\u304d\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002Dotcom-Monitor\u306e\u7528\u8a9e\u96c6\u306b\u306f<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc%e3%81%a7%e5%ad%a6%e3%81%b6\/%e7%94%a8%e8%aa%9e%e9%9b%86\/%e3%82%a6%e3%82%a7%e3%83%96%e3%82%b5%e3%82%a4%e3%83%88%e3%81%ae%e5%8f%af%e7%94%a8%e6%80%a7%e3%81%a8%e3%81%af%ef%bc%9f\/\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u53ef\u7528\u6027<\/a>\u306e\u6b63\u5f0f\u306a\u5b9a\u7fa9\u304c\u3042\u308a\u3001\u8a73\u3057\u3044\u8aac\u660e\u3092\u6c42\u3081\u308b\u5834\u5408\u306f\u3053\u3061\u3089\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<blockquote><p><strong>\u4e00\u822c\u7684\u306a\u5b9f\u969b\u306e\u969c\u5bb3\u30d1\u30bf\u30fc\u30f3\uff1a<\/strong>\u91d1\u66dc\u591c\u306e\u30c7\u30d7\u30ed\u30a4\u3067\u65b0\u3057\u3044\u5206\u6790\u30bf\u30b0\u304c\u5c0e\u5165\u3055\u308c\u307e\u3059\u3002HTML\u306f\u5168\u5730\u57df\u304b\u3089200 OK\u3092\u8fd4\u3059\u305f\u3081\u57fa\u672c\u7684\u306a\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u30c4\u30fc\u30eb\u306f\u9031\u672b\u4e2d\u30b0\u30ea\u30fc\u30f3\u3092\u5831\u544a\u3057\u307e\u3059\u3002\u6708\u66dc\u671d\u3001Safari\u3067\u7b2c\u4e09\u8005\u30bf\u30b0\u304c\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u9001\u4fe1\u30cf\u30f3\u30c9\u30e9\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u305f\u3081\u30b5\u30dd\u30fc\u30c8\u306b\u306f\u5927\u91cf\u306e\u30c1\u30b1\u30c3\u30c8\u304c\u6765\u307e\u3059\u3002\u30ea\u30a2\u30eb\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30da\u30fc\u30b8\u306e\u30c1\u30a7\u30c3\u30af\u3067\u3042\u308c\u3070\u3001\u30dd\u30fc\u30ea\u30f3\u30b0\u9593\u9694\u5185\u3067\u969c\u5bb3\u3092\u691c\u77e5\u3067\u304d\u307e\u3057\u305f\u3002\u5358\u7d14\u306aHTTP\u30c1\u30a7\u30c3\u30af\u3067\u306f\u4e0d\u53ef\u80fd\u3067\u3059\u3002<\/p><\/blockquote>\n<h2 id='\u306a\u305c\u53ef\u7528\u6027\u76e3\u8996\u304c\u91cd\u8981\u306a\u306e\u304b'  id=\"boomdevs_2\">\u306a\u305c\u53ef\u7528\u6027\u76e3\u8996\u304c\u91cd\u8981\u306a\u306e\u304b<\/h2>\n<p>\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u30b3\u30b9\u30c8\u306f\u30d3\u30b8\u30cd\u30b9\u306b\u3088\u3063\u3066\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u88ab\u5bb3\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u306f\u4e00\u8cab\u3057\u3066\u3044\u307e\u3059\uff1a\u53d6\u5f15\u640d\u5931\u3001SLA\u9055\u53cd\u3001\u30d6\u30e9\u30f3\u30c9\u8a55\u5224\u306e\u640d\u50b7\u3001\u9577\u6642\u9593\u306e\u969c\u5bb3\u4e2d\u306b\u30af\u30ed\u30fc\u30e9\u30fc\u304c\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u306b\u5f53\u305f\u308b\u3053\u3068\u306b\u3088\u308b\u691c\u7d22\u30e9\u30f3\u30ad\u30f3\u30b0\u306e\u30da\u30ca\u30eb\u30c6\u30a3\u3001\u305d\u3057\u3066\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u306b\u304b\u304b\u308b\u793e\u5185\u30b3\u30b9\u30c8\u3002<\/p>\n<p>e\u30b3\u30de\u30fc\u30b9\u30b5\u30a4\u30c8\u306b\u3068\u3063\u3066\u306f\u3001\u30d4\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u4e2d\u306e\u6570\u5206\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3067\u3082\u6570\u5343\u30c9\u30eb\u306e\u6ce8\u6587\u640d\u5931\u3068\u306a\u308a\u3048\u307e\u3059\u3002SaaS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u3068\u3063\u3066\u306f\u3001\u5358\u4e00\u306e\u7d99\u7d9a\u7684\u969c\u5bb3\u3067<a href=\"https:\/\/www.dotcom-monitor.com\/wiki\/knowledge-base\/sla-report\/\">SLA\u30af\u30ec\u30b8\u30c3\u30c8<\/a>\u304c\u767a\u751f\u3057\u3001\u9577\u5e74\u304b\u3051\u3066\u7bc9\u3044\u305f\u9867\u5ba2\u4fe1\u983c\u3092\u640d\u306a\u3044\u307e\u3059\u3002\u30e1\u30c7\u30a3\u30a2\u30fb\u51fa\u7248\u30b5\u30a4\u30c8\u306b\u3068\u3063\u3066\u306f\u3001\u5927\u304d\u306a\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30af\u30eb\u4e2d\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306f\u623b\u3089\u306a\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u53ef\u7528\u6027\u76e3\u8996\u306f\u3001\u4f55\u304b\u304c\u554f\u984c\u306b\u306a\u308b\u6642\u9593\u3068\u8ab0\u304b\u304c\u305d\u308c\u3092\u4fee\u6b63\u3059\u308b\u6642\u9593\u306e\u9593\u306e\u7a93\u3092\u7e2e\u3081\u307e\u3059\u3002\u3053\u306e\u5e73\u5747\u691c\u77e5\u6642\u9593\uff08MTTD\uff09\u306f\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u7dcf\u5f71\u97ff\u3092\u8efd\u6e1b\u3059\u308b\u6700\u5927\u306e\u30ec\u30d0\u30fc\u3068\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<h2 id='\u53ef\u7528\u6027\u76e3\u8996\u306e\u4ed5\u7d44\u307f'  id=\"boomdevs_3\">\u53ef\u7528\u6027\u76e3\u8996\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>\u307b\u3068\u3093\u3069\u306e\u53ef\u7528\u6027\u76e3\u8996\u306f\u5408\u6210\u30c1\u30a7\u30c3\u30af\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\uff1a\u4e16\u754c\u5404\u5730\u306b\u5206\u6563\u3055\u308c\u305f\u76e3\u8996\u30ce\u30fc\u30c9\u304b\u3089\u81ea\u52d5\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c1\u30a7\u30c3\u30af\u306f\u5b9a\u671f\u7684\u306b\u5b9f\u884c\u3055\u308c\u2014\u6570\u79d2\u3054\u3068\u304b\u3089\u6570\u5206\u3054\u3068\u307e\u3067\u2014\u5fdc\u7b54\u304c\u8a31\u5bb9\u6642\u9593\u5185\u306b\u6b63\u3057\u304b\u3063\u305f\u304b\u3092\u8a18\u9332\u3057\u307e\u3059\u3002<\/p>\n<p>\u5178\u578b\u7684\u306a\u30c1\u30a7\u30c3\u30af\u306f\u7279\u5b9a\u306e\u5730\u7406\u7684\u4f4d\u7f6e\u306b\u3042\u308b\u76e3\u8996\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304cURL\u3078HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308a\u3001\u5fdc\u7b54\u3092\u4e00\u9023\u306e\u30eb\u30fc\u30eb\u3067\u8a55\u4fa1\u3057\u307e\u3059\u30022xx\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u8fd4\u3057\u305f\u304b\u3001\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3057\u305f\u304b\u3002\u5fdc\u7b54\u6642\u9593\u306f\u95be\u5024\u5185\u304b\u3002\u30da\u30fc\u30b8\u306b\u671f\u5f85\u3055\u308c\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3002\u30da\u30fc\u30b8\u4e0a\u306e\u5168\u30ea\u30bd\u30fc\u30b9\u306f\u6b63\u5e38\u306b\u30ed\u30fc\u30c9\u3055\u308c\u305f\u304b\u3002<\/p>\n<p>\u30c1\u30a7\u30c3\u30af\u304c\u5931\u6557\u3059\u308b\u3068\u3001\u901a\u5e38\u76e3\u8996\u30b7\u30b9\u30c6\u30e0\u306f\u5373\u5ea7\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u767a\u751f\u3055\u305b\u307e\u305b\u3093\u3002\u540c\u3058\u30ce\u30fc\u30c9\u304b\u3089\u518d\u8a66\u884c\u3057\u3001\u91cd\u8981\u306a\u3053\u3068\u3068\u3057\u3066\u7570\u306a\u308b\u30ce\u30fc\u30c9\u304b\u3089\u3082\u518d\u8a66\u884c\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4e00\u6642\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e0d\u8abf\u3084\u76e3\u8996\u30ce\u30fc\u30c9\u81ea\u4f53\u306e\u5c40\u6240\u7684\u306a\u554f\u984c\u3092\u9664\u5916\u3057\u3001\u983b\u7e41\u306a\u8aa4\u8b66\u5831\u3092\u9632\u304e\u307e\u3059\u3002\u8907\u6570\u306e\u5834\u6240\u3067\u306e\u5931\u6557\u304c\u78ba\u8a8d\u3055\u308c\u305f\u5834\u5408\u306b\u306e\u307f\u3001\u30a2\u30e9\u30fc\u30c8\u3092\u30a8\u30b9\u30ab\u30ec\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<h2 id='\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u3092\u76e3\u8996\u3059\u308b\u65b9\u6cd5-\u5168\u3066\u306e\u30b5\u30a4\u30c8\u304c\u5fc5\u8981\u3068\u3059\u308b5\u3064\u306e\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_4\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u3092\u76e3\u8996\u3059\u308b\u65b9\u6cd5\uff1a\u5168\u3066\u306e\u30b5\u30a4\u30c8\u304c\u5fc5\u8981\u3068\u3059\u308b5\u3064\u306e\u30c1\u30a7\u30c3\u30af<\/h2>\n<p>\u4e00\u822c\u7684\u306a\u30a2\u30c9\u30d0\u30a4\u30b9\u306f\u300c\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u3092\u76e3\u8996\u3059\u308b\u300d\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u5927\u534a\u306e\u969c\u5bb3\u3092\u898b\u9003\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30b5\u30a4\u30c8\u6240\u6709\u8005\u304c\u5b9f\u969b\u306b\u672c\u756a\u74b0\u5883\u3067\u898b\u308b\u969c\u5bb3\u3092\u691c\u77e5\u3059\u308b5\u3064\u306e\u30c1\u30a7\u30c3\u30af\u30bf\u30a4\u30d7\u3067\u3059\u3002<\/p>\n<img decoding=\"async\" class=\"size-full wp-image-34044\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/five-checks-stack.webp\" alt=\"Diagram of five layered website availability checks: HTTP status, DNS resolution, SSL certificate, real-browser page render, and multi-step transaction monitoring.\" width=\"1344\" height=\"768\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/five-checks-stack.webp 1344w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/five-checks-stack-300x171.webp 300w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/five-checks-stack-1024x585.webp 1024w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/five-checks-stack-768x439.webp 768w\" sizes=\"(max-width: 1344px) 100vw, 1344px\" \/> \u5404\u30ec\u30a4\u30e4\u30fc\u306f\u4e0b\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u306f\u898b\u3048\u306a\u3044\u969c\u5bb3\u3092\u691c\u77e5\u3057\u307e\u3059\u3002[ \/caption]\n<h3 id='1-http-s-\u30b9\u30c6\u30fc\u30bf\u30b9\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_5\">1. HTTP(S) \u30b9\u30c6\u30fc\u30bf\u30b9\u30c1\u30a7\u30c3\u30af<\/h3>\n<p>\u57fa\u672c\u7684\u306a\u30c1\u30a7\u30c3\u30af\u3002URL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u30012xx\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u671f\u5f85\u3057\u3001\u305d\u308c\u4ee5\u5916\u306f\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3057\u307e\u3059\u3002\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u3001\u6599\u91d1\u30da\u30fc\u30b8\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30da\u30fc\u30b8\u3001\u305d\u3057\u3066\u6709\u6599\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u7d10\u4ed8\u304f\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u306b\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3067\u91cd\u5927\u306a\u969c\u5bb3\u3084SSL\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u5931\u6557\u3092\u691c\u77e5\u3057\u307e\u3059\u3002<\/p>\n<p>\u8907\u6570\u306e\u5834\u6240\u304b\u3089\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7c73\u56fd\u306e\u5358\u4e00\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u304b\u3089\u306e\u30c1\u30a7\u30c3\u30af\u306f\u300c\u7a3c\u50cd\u4e2d\u300d\u3068\u5831\u544a\u3057\u3066\u3082\u3001\u30b7\u30c9\u30cb\u30fc\u306e\u9867\u5ba2\u306fCloudFront\u30a8\u30e9\u30fc\u3092\u898b\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 id='2-dns\u89e3\u6c7a\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_6\">2. DNS\u89e3\u6c7a\u30c1\u30a7\u30c3\u30af<\/h3>\n<p>\u540d\u524d\u89e3\u6c7a\u3067\u304d\u306a\u3044\u30b5\u30a4\u30c8\u306f\u5b58\u5728\u3057\u306a\u3044\u306e\u3068\u540c\u3058\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u3067\u3082\u305d\u3046\u3067\u3059\u3002DNS\u306e\u554f\u984c\u306f\u901a\u5e38\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u969c\u5bb3\uff08\u4f8b\u3048\u3070Route 53\u306e notable outages\uff09\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u5207\u308c\u3001\u30ec\u30b3\u30fc\u30c9\u5909\u66f4\u5f8c\u306e\u4f1d\u64ad\u554f\u984c\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002<\/p>\n<p><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\/dns%e7%9b%a3%e8%a6%96%e3%83%84%e3%83%bc%e3%83%ab-%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc\/\">DNS\u76e3\u8996<\/a>\u306f\u8907\u6570\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u30ea\u30be\u30eb\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u30c9\u30e1\u30a4\u30f3\u3092\u89e3\u6c7a\u3057\u3001\u7b54\u3048\u304c\u4e88\u671f\u305b\u305a\u5909\u308f\u3063\u305f\u308a\u3001\u5b8c\u5168\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3057\u307e\u3059\u3002<\/p>\n<h3 id='3-ssl\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u6027'  id=\"boomdevs_7\">3. SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u6027<\/h3>\n<p>\u8a3c\u660e\u66f8\u306f\u671f\u9650\u5207\u308c\u306b\u306a\u308a\u307e\u3059\u3002\u5931\u52b9\u3057\u307e\u3059\u3002Let&#8217;s Encrypt\u306e\u66f4\u65b0\u306b\u5931\u6557\u3057\u3066\u8aa4\u8a2d\u5b9a\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u671f\u9650\u5207\u308c\u8a3c\u660e\u66f8\u8b66\u544a\u306b\u76f4\u9762\u3057\u305f\u8a2a\u554f\u8005\u306f\u96e2\u8131\u3057\u3001\u300c\u8a73\u7d30\u8a2d\u5b9a &gt; \u7d9a\u884c\u300d\u306b\u306f\u9032\u307f\u307e\u305b\u3093\u3002<\/p>\n<p><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\/ssl-certificate-monitoring\/\">SSL\u8a3c\u660e\u66f8\u76e3\u8996<\/a>\u306f\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3001\u6709\u52b9\u671f\u9650\u3001\u5931\u52b9\u72b6\u6cc1\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u300230\u65e5\u524d\u300114\u65e5\u524d\u30017\u65e5\u524d\u306b\u30a2\u30e9\u30fc\u30c8\u304c\u767a\u751f\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3001\u8a3c\u660e\u66f8\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u4f59\u88d5\u3092\u6301\u305f\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id='4-\u5b9f\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30d5\u30eb\u30da\u30fc\u30b8\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_8\">4. \u5b9f\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30d5\u30eb\u30da\u30fc\u30b8\u30c1\u30a7\u30c3\u30af<\/h3>\n<p>200\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u52d5\u4f5c\u3059\u308b\u30da\u30fc\u30b8\u306f\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u73fe\u4ee3\u306e\u30b5\u30a4\u30c8\u306fJavaScript\u30d0\u30f3\u30c9\u30eb\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30b9\u30af\u30ea\u30d7\u30c8\uff08\u5206\u6790\u3001\u6c7a\u6e08\u3001\u30c1\u30e3\u30c3\u30c8\uff09\u3001CDN\u914d\u4fe1\u30a2\u30bb\u30c3\u30c8\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306fHTML\u304c2xx\u3092\u8fd4\u3059\u9593\u306b\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u30d6\u30e9\u30a6\u30b6<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-%e3%83%9a%e3%83%bc%e3%82%b8%e7%9b%a3%e8%a6%96-%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc\/\">\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u76e3\u8996<\/a>\u306f\u3001Chrome\u3068\u540c\u69d8\u306b\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u307f\u3001JavaScript\u3092\u5b9f\u884c\u3057\u3001\u91cd\u8981\u306aDOM\u8981\u7d20\u306e\u5b58\u5728\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308aHTTP\u30c1\u30a7\u30c3\u30af\u3067\u306f\u898b\u9003\u3059\u300c\u30b5\u30a4\u30c8\u304c\u58ca\u308c\u3066\u3044\u308b\u300d\u554f\u984c\u3092\u691c\u77e5\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 id='5-\u91cd\u8981\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_9\">5. \u91cd\u8981\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30c1\u30a7\u30c3\u30af<\/h3>\n<p>SaaS\u30a2\u30d7\u30ea\u3067\u306f\u300c\u30e6\u30fc\u30b6\u30fc\u304c\u30ed\u30b0\u30a4\u30f3\u3067\u304d\u308b\u304b\u300d\u304c\u6700\u91cd\u8981\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002E\u30b3\u30de\u30fc\u30b9\u30b5\u30a4\u30c8\u3067\u306f\u300c\u30e6\u30fc\u30b6\u30fc\u304c\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3092\u5b8c\u4e86\u3067\u304d\u308b\u304b\u300d\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3001\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3001API\u547c\u3073\u51fa\u3057\u3001\u6700\u7d42\u78ba\u8a8d\u30da\u30fc\u30b8\u3092\u542b\u3080\u8907\u6570\u30b9\u30c6\u30c3\u30d7\u306e\u30d5\u30ed\u30fc\u3067\u3059\u3002<\/p>\n<p><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\/\">\u5408\u6210\u76e3\u8996<\/a>\u306f\u5b9a\u671f\u7684\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u5316\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u30b8\u30e3\u30fc\u30cb\u30fc\uff08\u30ed\u30b0\u30a4\u30f3\u3001\u691c\u7d22\u3001\u30ab\u30fc\u30c8\u8ffd\u52a0\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\uff09\u3092\u5b9f\u884c\u3057\u3001\u3069\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u5931\u6557\u3057\u3066\u3082\u30a2\u30e9\u30fc\u30c8\u3092\u767a\u751f\u3055\u305b\u307e\u3059\u3002Dotcom-Monitor\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e9%a1%94%e7%ab%8b%e3%81%a1\/everystep\/\">EveryStep<\/a>\u306f\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u305a\u306b\u30ea\u30a2\u30eb\u30d6\u30e9\u30a6\u30b6\u3067\u3053\u308c\u3089\u306e\u30d5\u30ed\u30fc\u3092\u9332\u753b\u3067\u304d\u307e\u3059\u3002<\/p>\n<blockquote><p><strong>\u57fa\u672c\u7684\u306aHTTP\u4ee5\u5916\u306b1\u3064\u3060\u3051\u30c1\u30a7\u30c3\u30af\u3092\u8ffd\u52a0\u3059\u308b\u306a\u3089\u3053\u308c\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u76e3\u8996\u306f\u5b9f\u969b\u306e\u53ce\u76ca\u306b\u6700\u3082\u8fd1\u3044\u4fe1\u53f7\u3067\u3059\u3002<\/p><\/blockquote>\n<h2 id='\u76e3\u8996\u9593\u9694\u3068\u5834\u6240\u306e\u9078\u629e'  id=\"boomdevs_10\">\u76e3\u8996\u9593\u9694\u3068\u5834\u6240\u306e\u9078\u629e<\/h2>\n<h3 id='\u3069\u3053\u304b\u3089\u30c1\u30a7\u30c3\u30af\u3059\u308b\u304b'  id=\"boomdevs_11\">\u3069\u3053\u304b\u3089\u30c1\u30a7\u30c3\u30af\u3059\u308b\u304b<\/h3>\n<p>\u5358\u4e00\u306e\u76e3\u8996\u5834\u6240\u306f\u76e3\u8996\u306e\u5358\u4e00\u969c\u5bb3\u70b9\u3067\u3059\u3002\u30d0\u30fc\u30b8\u30cb\u30a2\u306b\u3042\u308b1\u3064\u306e\u30c1\u30a7\u30c3\u30af\u30ce\u30fc\u30c9\u3067AWS us-east-1\u306b\u5730\u57df\u969c\u5bb3\u304c\u8d77\u3053\u308c\u3070\u8aa4\u8b66\u5831\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30d0\u30fc\u30b8\u30cb\u30a2\u306b\u30ce\u30fc\u30c9\u304c\u3042\u308a\u3001CDN\u306e\u30e8\u30fc\u30ed\u30c3\u30d1\u30a8\u30c3\u30b8\u304c\u52a3\u5316\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u5b9f\u969b\u306e\u969c\u5bb3\u3092\u898b\u9003\u3057\u307e\u3059\u3002<\/p>\n<p>\u89e3\u6c7a\u7b56\u306f\u8907\u6570\u5730\u57df\u304b\u3089\u306e\u5206\u6563\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002Dotcom-Monitor\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e9%a1%94%e7%ab%8b%e3%81%a1\/%e7%89%b9%e5%be%b4%e7%9b%a3%e8%a6%96%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af\/\">\u30b0\u30ed\u30fc\u30d0\u30eb\u76e3\u8996\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/a>\u306f\u5317\u7c73\u3001\u30e8\u30fc\u30ed\u30c3\u30d1\u3001\u30a2\u30b8\u30a2\u592a\u5e73\u6d0b\u3001\u5357\u7c73\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3067\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>\u5c0f\u898f\u6a21\u30b5\u30a4\u30c8\u306a\u30893\u301c5\u62e0\u70b9\u3067\u5341\u5206\u3067\u3059\u3002\u4e3b\u8981\u306a\u9867\u5ba2\u30af\u30e9\u30b9\u30bf\u306e\u8fd1\u304f\u306b1\u3064\u305a\u3064\u3001\u52a0\u3048\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\u554f\u984c\u3092\u691c\u77e5\u3059\u308b\u305f\u3081\u306e\u30a2\u30a6\u30c8\u30e9\u30a4\u30e4\u30fc\u30921\u3064\u9078\u3073\u307e\u3059\u3002\u9867\u5ba2\u304c1\u30ab\u56fd\u306b\u96c6\u4e2d\u3057\u3066\u3044\u308b\u306a\u308930\u62e0\u70b9\u3082\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<blockquote><p>\u5b9f\u7528\u7684\u306a\u30eb\u30fc\u30eb\uff1a30\u301c60\u79d2\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u5185\u306b\u5c11\u306a\u304f\u3068\u30822\u62e0\u70b9\u304c\u969c\u5bb3\u3092\u5831\u544a\u3057\u305f\u5834\u5408\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3057\u307e\u3059\u3002\u305d\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u306f1\u5206\u9593\u306e\u30c1\u30a7\u30c3\u30af\u30b5\u30a4\u30af\u30eb2\u56de\u5206\u306b\u76f8\u5f53\u3057\u3001\u4e00\u6642\u7684\u306a\u5358\u4e00\u30ce\u30fc\u30c9\u306e\u30ce\u30a4\u30ba\u3092\u9664\u5916\u3057\u3064\u3064\u672c\u5f53\u306e\u969c\u5bb3\u3092\u8fc5\u901f\u306b\u691c\u77e5\u3057\u307e\u3059\u3002<\/p><\/blockquote>\n<h3 id='\u3069\u306e\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u30c1\u30a7\u30c3\u30af\u3059\u308b\u304b'  id=\"boomdevs_12\">\u3069\u306e\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u30c1\u30a7\u30c3\u30af\u3059\u308b\u304b<\/h3>\n<p>\u30c1\u30a7\u30c3\u30af\u983b\u5ea6\u306f\u30b3\u30b9\u30c8\u3068\u691c\u77e5\u6642\u9593\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3067\u3059\u3002\u4e00\u822c\u7684\u306a\u9593\u9694\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>1\u5206\u9593\u9694<\/strong>\uff1a\u53ce\u76ca\u767a\u751f\u30da\u30fc\u30b8\uff08\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3001\u30ed\u30b0\u30a4\u30f3\u3001\u6709\u6599\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\uff09<\/li>\n<li><strong>5\u5206\u9593\u9694<\/strong>\uff1a\u4e3b\u8981\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u3068<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\/api-monitoring\/\">API\u76e3\u8996<\/a><\/li>\n<li><strong>15\u5206\u9593\u9694<\/strong>\uff1a\u30b5\u30d6\u30da\u30fc\u30b8\u3001\u5185\u90e8\u30c4\u30fc\u30eb\u3001\u4f4e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30b3\u30f3\u30c6\u30f3\u30c4<\/li>\n<\/ul>\n<p>5\u5206\u9593\u9694\u306e\u30c1\u30a7\u30c3\u30af\u306e\u5834\u5408\u3001\u6700\u5927\u30675\u5206\u9593\u306e\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u3066\u3082\u691c\u77e5\u307e\u3067\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u6642\u9593\u7a93\u306e\u30b3\u30b9\u30c8\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30da\u30fc\u30b8\u3042\u305f\u308a\u306e1\u5206\u9593\u306e\u53ce\u76ca\u984d\u306b\u3088\u308a\u307e\u3059\u3002Dotcom-Monitor\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e5%8f%af%e7%94%a8%e6%80%a7%e8%a8%88%e7%ae%97%e6%a9%9f\/\">\u53ef\u7528\u6027\u8a08\u7b97\u6a5f<\/a>\u3067SLA\u3068\u6bd4\u8f03\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>1\u5206\u9593\u9694\u306e\u30c1\u30a7\u30c3\u30af\u306f\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\uff08\u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u306f\u30c1\u30a7\u30c3\u30af\u6bce\u306e\u8ab2\u91d1\u3082\u3042\u308a\u307e\u3059\uff09\u3002\u5c0f\u898f\u6a21\u30b5\u30a4\u30c8\u3067\u306f\u3001\u53ce\u76ca\u7d4c\u8def3\u3064\u306b1\u5206\u9593\u9694\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u6240\u306f5\u5206\u9593\u9694\u304c\u6700\u9069\u3067\u3059\u3002<\/p>\n<h2 id='\u5b9f\u969b\u306b\u76ee\u306b\u7559\u307e\u308b\u30a2\u30e9\u30fc\u30c8\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0'  id=\"boomdevs_13\">\u5b9f\u969b\u306b\u76ee\u306b\u7559\u307e\u308b\u30a2\u30e9\u30fc\u30c8\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n<p>\u969c\u5bb3\u30e2\u30fc\u30c9\u3068\u3057\u3066\u3088\u304f\u3042\u308b\u306e\u306f\u30a2\u30e9\u30fc\u30c8\u75b2\u308c\u3067\u3059\u3002\u3042\u3089\u3086\u308b\u30ce\u30a4\u30ba\u3067\u30da\u30fc\u30b8\u30f3\u30b0\u3055\u308c\u7d9a\u3051\u308b\u3068\u76e3\u8996\u3092\u7121\u8996\u3057\u59cb\u3081\u3001\u672c\u5f53\u306e\u969c\u5bb3\u304c\u6765\u3066\u3082\u920d\u304f\u306a\u308a\u307e\u3059\u3002\u5b9f\u8df5\u7684\u306a\u30eb\u30fc\u30eb\uff1a<\/p>\n<p><strong>N-of-M\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3059\u308b<\/strong>\u30021\u56de\u306e\u30c1\u30a7\u30c3\u30af\u5931\u6557\u3067\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3055\u305a\u30013\u56de\u4e2d2\u56de\uff08\u307e\u305f\u306f5\u56de\u4e2d3\u56de\uff09\u306e\u9023\u7d9a\u5931\u6557\u3067\u30a2\u30e9\u30fc\u30c8\u3002\u3053\u308c\u3067\u8aa4\u8b66\u5831\u306e\u5927\u534a\u3092\u6f70\u3057\u3001\u30ea\u30a2\u30eb\u306a\u969c\u5bb3\u306e\u9045\u5ef6\u3092\u610f\u5473\u306a\u3044\u30ec\u30d9\u30eb\u306b\u6291\u3048\u307e\u3059\u3002<\/p>\n<p><strong>\u91cd\u8981\u5ea6\u3067\u5206\u3051\u308b<\/strong>\u3002\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u304c\u58ca\u308c\u305f\u30a2\u30e9\u30fc\u30c8\u306f\u5348\u524d3\u6642\u306b\u96fb\u8a71\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300c\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u304c\u9045\u3044\u300d\u30a2\u30e9\u30fc\u30c8\u306f\u55b6\u696d\u6642\u9593\u306e\u30c1\u30e3\u30c3\u30c8\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u5c4a\u304f\u3079\u304d\u3067\u3059\u3002\u5225\u3005\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002Dotcom-Monitor\u306e<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\u6a5f\u80fd<\/a>\u306f\u30e2\u30cb\u30bf\u3054\u3068\u306e\u30c1\u30e3\u30cd\u30eb\u3001\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u30c1\u30a7\u30fc\u30f3\u3001\u55b6\u696d\u6642\u9593\u5916\u30eb\u30fc\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u8a08\u753b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u306f\u6291\u5236\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u5229\u7528\u3059\u308b<\/strong>\u3002\u30ea\u30ea\u30fc\u30b9\u3092\u5c55\u958b\u3057\u306630\u79d2\u7a0b\u5ea6\u306e\u30ce\u30a4\u30ba\u304c\u4e88\u60f3\u3055\u308c\u308b\u5834\u5408\u3001\u305d\u306e\u76e3\u8996\u5bfe\u8c61\u306e\u30a2\u30e9\u30fc\u30c8\u3092\u6291\u5236\u3057\u3066\u30da\u30fc\u30b8\u30f3\u30b0\u3092\u6b62\u3081\u307e\u3059\u3002\u5b8c\u5168\u306b\u7121\u52b9\u5316\u3057\u306a\u3044\u3053\u3068\u3002\u6291\u5236\u306f\u81ea\u52d5\u7684\u306b\u89e3\u9664\u3055\u308c\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<p><strong>\u9045\u5ef6\u5f8c\u306b\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3<\/strong>\u3002\u6700\u521d\u306e\u62c5\u5f53\u8005\u304c5\u5206\u4ee5\u5185\u306b\u8a8d\u77e5\u3057\u306a\u3051\u308c\u30702\u4eba\u76ee\u3092\u30da\u30fc\u30b8\u30f3\u30b0\u300215\u5206\u7d4c\u3063\u305f\u30893\u4eba\u76ee\u3002\u4f1a\u8b70\u304b\u3089\u547c\u3073\u51fa\u3057\u3066\u3082\u554f\u984c\u306a\u3044\u304c\u3001\u5fdc\u7b54\u8005\u304c\u98db\u884c\u6a5f\u4e2d\u3067\u5224\u5b9a\u6f0f\u308c\u306f\u554f\u984c\u3067\u3059\u3002<\/p>\n<p><strong>\u30c7\u30c3\u30c9\u30de\u30f3\u30fb\u30b9\u30a4\u30c3\u30c1\u3092\u8ffd\u52a0\u3059\u308b<\/strong>\u3002\u76e3\u8996\u30c4\u30fc\u30eb\u304c\u6c88\u9ed9\u3059\u308b\u306e\u306f\u30b5\u30a4\u30c8\u304c\u5065\u5eb7\u3068\u3044\u3046\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u300210\u5206\u9593\u30c1\u30a7\u30c3\u30af\u5831\u544a\u304c\u306a\u3051\u308c\u3070\u30da\u30fc\u30b8\u30f3\u30b0\u3059\u308b\u30cf\u30fc\u30c8\u30d3\u30fc\u30c8\u30c1\u30a7\u30c3\u30af\u3092\u8d70\u3089\u305b\u3066\u304f\u3060\u3055\u3044\u3002\u76e3\u8996\u30d9\u30f3\u30c0\u81ea\u4f53\u306e\u969c\u5bb3\u3092\u691c\u77e5\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u30c1\u30e3\u30cd\u30eb\u306b\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u308b<\/strong>\u3002\u91cd\u8981\u306a\u30a2\u30e9\u30fc\u30c8\u306f\u96fb\u8a71\u3084SMS\u3078\u3001\u30e1\u30fc\u30eb\u306f\u65e5\u6b21\u8981\u7d04\u308499.95\uff05SLA\u9055\u53cd\u5831\u544a\u306b\u4f7f\u3044\u307e\u3059\u3002\u8b66\u544a\u306f\u8cd1\u3084\u304b\u306aSlack\u30c1\u30e3\u30f3\u30cd\u30eb\u3067\u69cb\u3044\u307e\u305b\u3093\u3002\u5348\u524d3\u6642\u306e\u96fb\u8a71\u306f\u672c\u5f53\u306b\u4f55\u304b\u554f\u984c\u304c\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<h2 id='\u30a2\u30e9\u30fc\u30c8\u767a\u751f\u6642\u306b\u3059\u3079\u304d\u3053\u3068'  id=\"boomdevs_14\">\u30a2\u30e9\u30fc\u30c8\u767a\u751f\u6642\u306b\u3059\u3079\u304d\u3053\u3068<\/h2>\n<p>\u30a2\u30e9\u30fc\u30c8\u306f\u30d7\u30ed\u30bb\u30b9\u306e\u59cb\u307e\u308a\u3067\u3042\u308a\u7d42\u308f\u308a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u3082\u53ef\u80fd\u6027\u306e\u9ad8\u30443\u7a2e\u985e\u306e\u30a2\u30e9\u30fc\u30c8\u306b\u3064\u3044\u3066\u3001\u3042\u3089\u304b\u3058\u3081\u5bfe\u51e6\u6cd5\u3092\u66f8\u304d\u7559\u3081\u3066\u304a\u304d\u307e\u3059\u3002\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u6700\u521d\u306e5\u5206\u9593\u306e\u610f\u601d\u6c7a\u5b9a\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u304c\u76ee\u6a19\u3067\u3059\u3002<\/p>\n<p>\u300c\u30b5\u30a4\u30c8\u304c\u30c0\u30a6\u30f3\u300d\u306e\u30a2\u30e9\u30fc\u30c8\u7528\u6700\u5c0f\u9650\u306e\u30e9\u30f3\u30d6\u30c3\u30af\uff1a<\/p>\n<ol>\n<li>\u76e3\u8996\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u958b\u304d\u3001\u5c11\u306a\u304f\u3068\u30822\u304b\u6240\u4ee5\u4e0a\u3067\u969c\u5bb3\u3092\u78ba\u8a8d\u3057\u3066\u672c\u7269\u3068\u3057\u3066\u6271\u3046\u3002<\/li>\n<li>\u76f4\u8fd1\u306e\u30c7\u30d7\u30ed\u30a4\u3092\u78ba\u8a8d\u300230\u5206\u4ee5\u5185\u306b\u30ea\u30ea\u30fc\u30b9\u304c\u3042\u308b\u306a\u3089\u307e\u305a\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3001\u305d\u306e\u5f8c\u8abf\u67fb\u3002<\/li>\n<li>\u4e0a\u6d41\u3092\u78ba\u8a8d\uff1aDNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3001CDN\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3002\u591a\u304f\u306e\u969c\u5bb3\u306f\u4ed6\u8005\u306e\u554f\u984c\u3002<\/li>\n<li>\u7b2c\u4e09\u8005\u554f\u984c\u306e\u5834\u5408\u306f\u81ea\u793e\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u306b\u63b2\u8f09\u3057\u3001\u4fee\u5fa9\u3092\u8a66\u307f\u308b\u306e\u306f\u3084\u3081\u308b\u3002<\/li>\n<li>\u81ea\u793e\u554f\u984c\u306e\u5834\u5408\u306f\u30a2\u30d7\u30ea\u30ed\u30b0\u3067\u30a8\u30e9\u30fc\u30b9\u30d1\u30a4\u30af\u3092\u8abf\u67fb\u3057\u3001\u6545\u969c\u30b5\u30fc\u30d3\u30b9\u3092\u7279\u5b9a\u3057\u3066\u30ea\u30b9\u30bf\u30fc\u30c8\u307e\u305f\u306f\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3002<\/li>\n<li>\u5fa9\u65e7\u5f8c15\u5206\u306e\u632f\u308a\u8fd4\u308a\u3092\u5b9f\u65bd\u3002\u4f55\u304c\u5931\u6557\u3057\u3001\u3069\u3046\u6c17\u4ed8\u3044\u3066\u3001\u4f55\u304c\u76f4\u3057\u305f\u304b\u3092\u66f8\u304d\u7559\u3081\u308b\u3002\u6570\u304b\u6708\u5f8c\u306b\u306f\u8a73\u7d30\u3092\u5fd8\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2 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https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/06\/failure-modes-grid-768x439.webp 768w\" sizes=\"(max-width: 1344px) 100vw, 1344px\" \/> \u969c\u5bb3\u306e\u7279\u5fb4\u306f\u901a\u5e38\u3001\u3069\u3053\u3092\u6700\u521d\u306b\u8abf\u3079\u308b\u3079\u304d\u304b\u3092\u793a\u3057\u307e\u3059\u3002[ 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