{"id":32492,"date":"2026-01-24T17:28:53","date_gmt":"2026-01-24T17:28:53","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/best-dns-monitoring-tools\/"},"modified":"2026-07-16T02:19:07","modified_gmt":"2026-07-16T02:19:07","slug":"best-dns-monitoring-tools","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/best-dns-monitoring-tools\/","title":{"rendered":"2026\u5e74\u306e\u30d9\u30b9\u30c8DNS\u76e3\u8996\u30c4\u30fc\u30eb"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-32400 alignright\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/best-dns-monitoring-tools.webp\" alt=\"Best DNS Monitoring Tools\" width=\"450\" height=\"300\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/best-dns-monitoring-tools.webp 1280w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/best-dns-monitoring-tools-300x200.webp 300w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/best-dns-monitoring-tools-1024x682.webp 1024w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/best-dns-monitoring-tools-768x512.webp 768w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/p>\n<h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f'  id=\"boomdevs_1\"><a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/dns-monitoring\/\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\uff1f<\/a><\/h2>\n<p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u6b63\u3057\u304f\u89e3\u6c7a\u3055\u308c\u3066\u3044\u308b\u304b\uff08\u6b63\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u3001\u6b63\u3057\u3044\u56de\u7b54\uff09\u3092\u7d99\u7d9a\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3001\u8907\u6570\u306e\u5834\u6240\u304b\u3089\u306eDNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u304c\u9ad8\u901f\u304b\u3064\u4fe1\u983c\u3067\u304d\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u5b9f\u8df5\u3067\u3059\u3002\u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u306f\u3001\u4e88\u671f\u3057\u306a\u3044DNS\u30ec\u30b3\u30fc\u30c9\u306e\u5909\u66f4\uff08A\/AAAA\/CNAME\/MX\/NS\/TXT\u306a\u3069\uff09\u306e\u76e3\u8996\u3001DNSSEC\u306e\u691c\u8a3c\u3001\u304a\u3088\u3073\u89e3\u6c7a\u304c\u3069\u3053\u3067\u9014\u5207\u308c\u3066\u3044\u308b\u304b\u306e\u7279\u5b9a\u3082\u53ef\u80fd\u3067\u3059\u3002<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\/dns%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f\/\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\uff1f<\/a>\u306e\u8a73\u7d30\u306f\u3053\u3061\u3089\u3002<\/p>\n<h2 id='\u306a\u305cdns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u91cd\u8981\u306a\u306e\u304b'  id=\"boomdevs_2\"><a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/dns-monitoring\/\">\u306a\u305cDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u91cd\u8981\u306a\u306e\u304b\uff1f<\/a><\/h2>\n<p>DNS\u969c\u5bb3\u306f\u3001\u30a4\u30f3\u30d5\u30e9\u304c\u6b63\u5e38\u3067\u3082\u300c\u5168\u3066\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u300d\u75c7\u72b6\u3092\u5f15\u304d\u8d77\u3053\u3059\u305f\u3081\u3001\u7279\u306b\u7834\u58ca\u7684\u3067\u3059\u3002\u5b9f\u969b\u306b\u306f\u3001DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u4ee5\u4e0b\u306e\uff13\u3064\u306e\u30d3\u30b8\u30cd\u30b9\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u9818\u57df\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>Web\u3068\u30a2\u30d7\u30ea\u306e\u53ef\u7528\u6027\uff1a<\/strong> A\/AAAA\/CNAME\u306e\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u304c\u5931\u6557\u3057\u305f\u308a\u9045\u304f\u306a\u308b\u3068\u3001\u30aa\u30ea\u30b8\u30f3\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/optimize-cdns-with-synthetic-monitoring\/\">CDN<\/a>\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u304c\u6b63\u5e38\u3067\u3082\u30e6\u30fc\u30b6\u30fc\u306f\u63a5\u7d9a\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a<\/strong> MX\u3001SPF\uff08TXT\uff09\u3001DKIM\u3001DMARC\u30ec\u30b3\u30fc\u30c9\u306f\u30e1\u30fc\u30eb\u304c\u914d\u4fe1\u3055\u308c\u308b\u304b\u62d2\u5426\u3055\u308c\u308b\u304b\u3001\u3082\u3057\u304f\u306f\u7591\u308f\u3057\u3044\u3068\u30de\u30fc\u30af\u3055\u308c\u308b\u304b\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f53\u5236\uff1a<\/strong> DNS\u306e\u5909\u66f4\u306f\u30a2\u30ab\u30a6\u30f3\u30c8\u4e57\u3063\u53d6\u308a\u306e\u4e00\u822c\u7684\u306a\u7d4c\u8def\uff08\u4f8b\uff1aA\/CNAME\u306e\u5909\u66f4\u306b\u3088\u308bWeb\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\uff09\u3084\u5236\u5fa1\u306e\u5f31\u4f53\u5316\uff08\u4f8b\uff1aSPF\/DMARC\u306e\u5909\u66f4\uff09\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u307e\u305f\u4ee5\u4e0b\u306e\u7591\u554f\u306b\u7b54\u3048\u308b\u3053\u3068\u3067\u554f\u984c\u89e3\u6c7a\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u300c\u554f\u984c\u306f\u30ea\u30be\u30eb\u30d0\u5074\u304b\u6a29\u5a01\u5074\u304b\uff1f\u300d<\/li>\n<li>\u300c\u554f\u984c\u306f\u5168\u5730\u57df\u7684\u304b\u5730\u57df\u9650\u5b9a\u304b\uff1f\u300d<\/li>\n<li>\u300c\u30ec\u30b3\u30fc\u30c9\u304c\u5909\u308f\u3063\u305f\u306e\u304b\u3001\u305d\u308c\u3068\u3082\u9023\u9396\u304c\u65ad\u305f\u308c\u305f\u306e\u304b\uff1f\u300d<\/li>\n<li>\u300cDNSSEC\u306f\u691c\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u304b\uff1f\u300d<\/li>\n<\/ul>\n<h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u767a\u898b\u3067\u304d\u308b\u554f\u984c'  id=\"boomdevs_3\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u767a\u898b\u3067\u304d\u308b\u554f\u984c<\/h2>\n<p><a href=\"https:\/\/www.dotcom-monitor.com\/wiki\/knowledge-base\/how-to-troubleshoot-dns-errors\/\"><strong>\u969c\u5bb3\uff0f\u89e3\u6c7a\u5931\u6557<\/strong><\/a>\uff08NXDOMAIN\u3001SERVFAIL\u3001REFUSED\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u671f\u9650\u5207\u308c\u30c9\u30e1\u30a4\u30f3\u3001\u30c7\u30ea\u30b2\u30fc\u30b7\u30e7\u30f3\u306e\u7834\u640d\u3001\u30c0\u30a6\u30f3\u3057\u305f\u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/%e5%86%85%e9%83%a8%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3-%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e3%81%ae%e5%86%85%e5%81%b4%e3%81%8b\/\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u30d6\u30ed\u30c3\u30af<\/a>\u3001\u8aa4\u8a2d\u5b9a\u306e\u30be\u30fc\u30f3\u3001DNSSEC\u691c\u8a3c\u5931\u6557\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>\u30ec\u30b9\u30dd\u30f3\u30b9\u30b3\u30fc\u30c9\u3001\u6a29\u5a01\u30b5\u30fc\u30d0\u30fc\u306e\u5230\u9054\u6027\u3001\u30ea\u30c8\u30e9\u30a4\uff0f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6319\u52d5\u3001\u7279\u5b9a\u30ea\u30be\u30eb\u30d0\u7d4c\u7531\u306e\u307f\u306e\u5931\u6557\u306e\u6709\u7121\u3002<\/li>\n<\/ul>\n<p><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\/dns%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%ef%bc%9f\/\"><strong>\u9045\u3044DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7<\/strong><\/a>\uff08\u5730\u57df\uff0f\u30ea\u30be\u30eb\u30d0\uff0f\u6a29\u5a01NS\u306b\u3088\u308b\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u6025\u4e0a\u6607\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u9045\u3044\u6a29\u5a01\u30b5\u30fc\u30d0\u30fc\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6df7\u96d1\u3001DDoS\u3001\u6700\u9069\u3067\u306a\u3044Anycast\u3001\u5927\u304d\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u3001TTL\u6226\u7565\u306e\u8aa4\u8a2d\u5b9a\u3001\u30ea\u30be\u30eb\u30d0\u56fa\u6709\u306e\u554f\u984c\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u6642\u9593\uff08ms\uff09\u3001\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u30ec\u30a4\u30c6\u30f3\u30b7\uff08p95\/p99\uff09\u3001\u521d\u30d0\u30a4\u30c8\u6642\u9593\u3001\u5730\u57df\u5225\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3002<\/li>\n<\/ul>\n<p><strong>\u4e88\u671f\u3057\u306a\u3044\u30ec\u30b3\u30fc\u30c9\u306e\u5909\u66f4<\/strong>\uff08A\/AAAA\/CNAME\/MX\/NS\/TXT\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u8aa4\u7de8\u96c6\u3001\u81ea\u52d5\u5316\u306e\u8aa4\u4f5c\u52d5\u3001\u30ec\u30b8\u30b9\u30c8\u30e9\uff0fDNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u4e8b\u6545\u3001\u8a8d\u8a3c\u60c5\u5831\u306e\u6f0f\u6d29\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>\u65e7\u65b0\u5024\u306e\u5dee\u5206\u3001\u5909\u66f4\u65e5\u6642\u3001\u5909\u66f4\u983b\u5ea6\u3001\u300c\u4e88\u60f3\u3055\u308c\u308b\u5909\u52d5\u300d\u30ec\u30b3\u30fc\u30c9\u306e\u30a2\u30e9\u30fc\u30c8\u6291\u5236\u30eb\u30fc\u30eb\u3002<\/li>\n<\/ul>\n<p><strong>\u4f1d\u64ad\uff0f\u4e0d\u6574\u5408\u306e\u554f\u984c<\/strong>\uff08\u4e16\u754c\u5404\u5730\u3067\u7570\u306a\u308b\u56de\u7b54\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3DNS\u3001\u6bb5\u968e\u7684\u66f4\u65b0\u3001\u90e8\u5206\u7684\u30be\u30fc\u30f3\u5c55\u958b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u53e4\u3044\u56de\u7b54\u3001\u4e00\u8cab\u6027\u306e\u306a\u3044\u6a29\u5a01\u30bb\u30c3\u30c8\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>\u5834\u6240\uff0f\u30ea\u30be\u30eb\u30d0\u9593\u3001\u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u56de\u7b54\u306e\u9055\u3044\u3002<\/li>\n<\/ul>\n<p><strong>\u8aa4\u8a2d\u5b9a<\/strong>\uff08SOA\uff0fNS\u554f\u984c\u3001\u53e4\u3044\u30b7\u30ea\u30a2\u30eb\u3001\u60aa\u3044TTL\u6226\u7565\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u30ec\u30b8\u30b9\u30c8\u30e9\u3068\u30be\u30fc\u30f3\u9593\u306eNS\u4e0d\u4e00\u81f4\u3001\u63a5\u7740\u30ec\u30b3\u30fc\u30c9\u306e\u6b20\u843d\u3001SOA\u30b7\u30ea\u30a2\u30eb\u672a\u66f4\u65b0\u3001\u56de\u5fa9\u9045\u5ef6\u3092\u62db\u304f\u9577\u3059\u304e\u308bTTL\u3001\u30af\u30a8\u30ea\u8ca0\u8377\u3092\u5897\u3084\u3059\u77ed\u3059\u304e\u308bTTL\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>NS\/SOA\u306e\u6574\u5408\u6027\u3001\u5fc5\u8981\u6642\u306e\u63a5\u7740\u306e\u6709\u7121\u3001TTL\u7bc4\u56f2\u3001\u30b7\u30ea\u30a2\u30eb\u306e\u6642\u9593\u7684\u5909\u5316\u3002<\/li>\n<\/ul>\n<p><strong>DNSSEC\u306e\u554f\u984c<\/strong>\uff08\u4fe1\u983c\u9023\u9396\u306e\u7834\u640d\u3001\u7121\u52b9\u306a\u7f72\u540d\uff0f\u9375\uff09<\/p>\n<ul>\n<li><em>\u4e3b\u306a\u539f\u56e0\uff1a<\/em>\u671f\u9650\u5207\u308c\u306eRRSIG\u3001\u89aa\u306eDS\u8aa4\u8a2d\u5b9a\u3001\u4e0d\u9069\u5207\u306a\u30ad\u30fc\u306e\u30ed\u30fc\u30eb\u30aa\u30fc\u30d0\u30fc\u3001DNSKEY\u30ec\u30b3\u30fc\u30c9\u306e\u6b20\u843d\u3002<\/li>\n<li><em>\u76e3\u8996\u5bfe\u8c61\uff1a<\/em>DNSSEC\u306e\u691c\u8a3c\u72b6\u614b\u3068\u5931\u6557\u30b9\u30c6\u30c3\u30d7\uff08DS\u3001DNSKEY\u3001RRSIG\uff09\u3002<\/li>\n<\/ul>\n<h2 id='2026\u5e74\u306e\u30d9\u30b9\u30c8dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb10\u9078'  id=\"boomdevs_4\">2026\u5e74\u306e\u30d9\u30b9\u30c8DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb10\u9078<\/h2>\n<h3 id='1-dotcom-monitor'  id=\"boomdevs_5\">1. Dotcom-Monitor<\/h3>\n<p><img decoding=\"async\" class=\"alignright wp-image-32330\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/1_logo_dotcom_monitor.webp\" alt=\"Dotcom-Monitor\" width=\"300\" height=\"64\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/1_logo_dotcom_monitor.webp 496w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/1_logo_dotcom_monitor-300x64.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Dotcom-Monitor\u306f\u3001\u57fa\u672c\u7684\u306a\u7a3c\u50cd\u76e3\u8996\u3092\u8d85\u3048\u3066\u5b9f\u7528\u7684\u306a\u8a3a\u65ad\u3092\u63d0\u4f9b\u3059\u308b<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\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u3092\u6c42\u3081\u308b\u5834\u5408\u306b\u5f37\u529b\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u5358\u306b\u30c9\u30e1\u30a4\u30f3\u304c\u300c\u89e3\u6c7a\u3059\u308b\u304b\u3069\u3046\u304b\u300d\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30c9\u30e1\u30a4\u30f3\u304c<strong>\u6b63\u3057\u304f<\/strong>\uff08\u671f\u5f85\u3055\u308c\u308b\u30ec\u30b3\u30fc\u30c9\uff0f\u56de\u7b54\uff09\u3001\u304b\u3064<strong>\u8fc5\u901f\u306b<\/strong>\uff08\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u9045\u5ef6\uff09\u89e3\u6c7a\u3055\u308c\u308b\u3053\u3068\u3092\u691c\u8a3c\u3057\u3001\u8907\u6570\u306e\u5834\u6240\u304b\u3089\u305d\u308c\u3092\u884c\u3046\u3053\u3068\u3067\u5730\u57df\u7684\u306a\u52a3\u5316\u3092\u65e9\u671f\u306b\u767a\u898b\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u300c\u30b5\u30a4\u30c8\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u300d\u3088\u3046\u306b\u898b\u3048\u308b\u304c\u30aa\u30ea\u30b8\u30f3\u3084CDN\u306f\u6b63\u5e38\u3068\u3044\u3046\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u969b\u306b\u7279\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002DNS\u306f\u898b\u3048\u306b\u304f\u3044\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3089\u3067\u3059\u3002Dotcom-Monitor\u306f\u3001\u5b89\u5b9a\u3057\u305f\u30a2\u30e9\u30fc\u30c8\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u6642\u306b\u30ec\u30d3\u30e5\u30fc\u53ef\u80fd\u306a\u5c65\u6b74\u3001\u5f71\u97ff\u3092\u793a\u3057\u89e3\u6c7a\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u305f\u3081\u306e\u30ec\u30dd\u30fc\u30c8\u3082\u5fc5\u8981\u3068\u3059\u308b\u30c1\u30fc\u30e0\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u9ad8\u3044\u7cbe\u5ea6\u306e\u8a3a\u65ad\u306e\u305f\u3081\u306eDNS\u30c1\u30a7\u30c3\u30af\u306e\u9ad8\u5ea6\u306a\u8a2d\u5b9a\uff08\u30af\u30a8\u30ea\u30bf\u30a4\u30d7\u3001\u671f\u5f85\u56de\u7b54\u3001\u30ea\u30be\u30eb\u30d0\u5bfe\u6a29\u5a01\u30bf\u30fc\u30b2\u30c6\u30a3\u30f3\u30b0\uff09<\/li>\n<li>\u8907\u6570\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u76e3\u8996\u306b\u3088\u308b\u5730\u57df\u7684DNS\u52a3\u5316\u3068\u4f1d\u64ad\u554f\u984c\u306e\u65e9\u671f\u691c\u51fa<\/li>\n<li><a href=\"https:\/\/www.dotcom-monitor.com\/wiki\/knowledge-base\/alert-delivery-mechanisms\/\">\u8fc5\u901f\u3067\u5b9f\u7528\u7684\u306a\u30a2\u30e9\u30fc\u30c8<\/a>\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u52a0\u901f\u3059\u308b\u8a73\u7d30\u30ec\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u6a5f\u80fd\u304c\u8c4a\u5bcc\u3067\u3042\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u306aDNS\u30cb\u30fc\u30ba\u3067\u306f\u6a5f\u80fd\u306e\u4e00\u90e8\u3057\u304b\u5229\u7528\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<li>\u30d7\u30e9\u30f3\u306e\u968e\u5c64\u3084\u76e3\u8996\u5358\u4f4d\u306b\u4fa1\u5024\u304c\u7d50\u3073\u4ed8\u304f\u305f\u3081\u3001\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u6570\u3084\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u3001\u30c1\u30a7\u30c3\u30af\u9593\u9694\u304c\u5897\u3048\u308b\u3068\u30b3\u30b9\u30c8\u304c\u4e0a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<li>\u9ad8\u5ea6\u306a\u8a2d\u5b9a\u306f\u5f37\u529b\u3060\u304c\u3001\u521d\u5fc3\u8005\u306f\u6700\u9069\u306a\u4fe1\u53f7\u5bfe\u96d1\u97f3\u6bd4\u306e\u305f\u3081\u306b\u8a2d\u5b9a\u8abf\u6574\u306b\u6642\u9593\u3092\u8981\u3059\u308b\u5834\u5408\u304c\u3042\u308b<\/li>\n<\/ul>\n<h3 id='2-uptimerobot'  id=\"boomdevs_6\">2. UptimeRobot<\/h3>\n<p><img decoding=\"async\" class=\"alignright wp-image-32337\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/2_logo_uptimerobot.webp\" alt=\"UptimeRobot\" width=\"300\" height=\"94\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/2_logo_uptimerobot.webp 324w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/2_logo_uptimerobot-300x94.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>UptimeRobot\u306eDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u6df1\u3044DNS\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30b9\u30a4\u30fc\u30c8\u3068\u3044\u3046\u3088\u308a\u306fDNS\u306e<strong>\u5909\u66f4\u76e3\u8996<\/strong>\u3068\u8003\u3048\u308b\u306e\u304c\u9069\u5207\u3067\u3059\u3002\u4e3b\u306a\u4fa1\u5024\u306fDNS\u30ec\u30b3\u30fc\u30c9\u306e\u5909\u66f4\uff08\u8ffd\u52a0\u3001\u7de8\u96c6\u3001\u524a\u9664\uff09\u304c\u3042\u3063\u305f\u969b\u306b\u8fc5\u901f\u306b\u901a\u77e5\u3059\u308b\u3053\u3068\u3067\u3001\u8aa4\u64cd\u4f5c\u3001\u81ea\u52d5\u5316\u30df\u30b9\u3001\u4e0d\u5be9\u306a\u6d3b\u52d5\u3092\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3084\u8aa4\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u5931\u6557\u306b\u306a\u308b\u524d\u306b\u691c\u77e5\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u901f\u304f\u3001\u660e\u78ba\u306a\u4fe1\u53f7\u3092\u6c42\u3081\u308b\u30c1\u30fc\u30e0\u306b\u975e\u5e38\u306b\u52b9\u679c\u7684\u3067\u3059\u3002\u300cDNS\u304c\u5909\u308f\u3063\u305f\u300d\u306f\u554f\u984c\u306e\u6700\u521d\u306e\u5146\u5019\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3067\u3059\u3002\u983b\u7e41\u306b\u30ec\u30b3\u30fc\u30c9\u304c\u56de\u8ee2\u3059\u308b\u74b0\u5883\uff08\u7279\u5b9a\u306eCDN\u3067\u4e00\u822c\u7684\uff09\u3067\u306f\u30a2\u30e9\u30fc\u30c8\u306e\u8abf\u6574\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u8efd\u91cf\u306a\u30ac\u30fc\u30c9\u30ec\u30fc\u30eb\u3068\u3057\u3066\u975e\u5e38\u306b\u5b9f\u7528\u7684\u306a\u5c64\u3067\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u5909\u66f4\u76e3\u8996\u306e\u305f\u3081\u306e\u5e45\u5e83\u3044DNS\u30ec\u30b3\u30fc\u30c9\u30ab\u30d0\u30ec\u30c3\u30b8<\/li>\n<li>\u8ffd\u52a0\uff0f\u7de8\u96c6\uff0f\u524a\u9664\u306b\u5373\u6642\u30a2\u30e9\u30fc\u30c8<\/li>\n<li>\u591a\u304f\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u975e\u5e38\u306b\u7c21\u5358\u306b\u5c0e\u5165\u53ef\u80fd<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u4e3b\u306b\u5909\u66f4\u691c\u77e5\u306b\u7279\u5316\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u306e\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u306b\u6bd4\u3079\u3066\u6df1\u3044DNS\u30c1\u30a7\u30fc\u30f3\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u9650\u5b9a\u7684<\/li>\n<li>\u9ad8\u5ea6\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u306f\u5225\u9014\u9045\u5ef6\u30fb\u30c8\u30ec\u30fc\u30b9\u578b\u306eDNS\u30c6\u30b9\u30c8\u304c\u671b\u307e\u3057\u3044<\/li>\n<li>\u5909\u66f4\u304c\u983b\u7e41\u306aDNS\uff08CDN\uff0f\u81ea\u52d5\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30ec\u30b3\u30fc\u30c9\uff09\u306f\u30a2\u30e9\u30fc\u30c8\u30ce\u30a4\u30ba\u3092\u751f\u3080\u53ef\u80fd\u6027\u3042\u308a<\/li>\n<\/ul>\n<h3 id='3-site24x7'  id=\"boomdevs_7\">3. Site24x7<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32344\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/3_logo_Site24x7.webp\" alt=\"UptimeRobot\" width=\"300\" height=\"109\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/3_logo_Site24x7.webp 326w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/3_logo_Site24x7-300x109.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Site24x7\u306f\u65e2\u306b\u4ed6\u306e\u76e3\u8996\u7528\u9014\u3067\u5229\u7528\u3057\u3066\u3044\u3066\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/domain-health-check\/\">DNS\u30d8\u30eb\u30b9<\/a>\u3092\u30a6\u30a7\u30d6\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u76e3\u8996\u3068\u540c\u3058\u5834\u6240\u3067\u8ffd\u8de1\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u305f\u5805\u5b9f\u306a\u9078\u629e\u80a2\u3067\u3059\u3002DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u904b\u7528\u4e0a\u306e\u5fc5\u9808\u4e8b\u9805\u306b\u6ce8\u529b\u3057\u3066\u304a\u308a\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306e\u78ba\u5b9f\u306a\u5fdc\u7b54\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u306e\u30c8\u30ec\u30f3\u30c9\u8ffd\u8de1\u306b\u3088\u308a\u3001\u300c\u89e3\u6c7a\u304c\u9045\u3044\u300d\u554f\u984c\u3092\u8a8d\u77e5\u3057\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u65ad\u7d9a\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u554f\u984c\u3068\u3057\u3066\u73fe\u308c\u308b\u3053\u3068\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002\u8907\u6570\u306e\u76e3\u8996\u5bfe\u8c61\u2014DNS\u3001Web\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3001<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<\/a>\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u2014\u306b\u308f\u305f\u308b\u4e00\u5143\u5316\u3055\u308c\u305f\u30b3\u30f3\u30bd\u30fc\u30eb\u3068\u4e00\u8cab\u3057\u305f\u30a2\u30e9\u30fc\u30c8\u6a5f\u80fd\u3092\u6c42\u3081\u308b\u7d44\u7e54\u306b\u3068\u3063\u3066\u4fbf\u5229\u3067\u3059\u3002\u5c02\u7528\u30c4\u30fc\u30eb\u3067\u306f\u306a\u304f\u30b9\u30a4\u30fc\u30c8\u3092\u597d\u3080\u5834\u5408\u3001Site24x7\u306f\u5225\u9014DNS\u5c02\u7528\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u69cb\u7bc9\u305b\u305a\u306bDNS\u3092\u7bc4\u56f2\u5185\u306b\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u4fbf\u5229\u306a\u624b\u6bb5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u660e\u78ba\u306aDNS\u306e\u53ef\u7528\u6027\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u76e3\u8996<\/li>\n<li>\u5185\u8535\u306e\u30ec\u30dd\u30fc\u30c8\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d3\u30e5\u30fc<\/li>\n<li>\u30b9\u30bf\u30c3\u30af\u5168\u4f53\u306b\u308f\u305f\u308b\u300c\u30b7\u30f3\u30b0\u30eb\u30da\u30a4\u30f3\u300d\u76e3\u8996\u306b\u4fbf\u5229<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u30b9\u30a4\u30fc\u30c8\u6307\u5411\u3067\u3001DNS\u5c02\u7528\u30c4\u30fc\u30eb\u3088\u308a\u91cd\u3044\u5834\u5408\u304c\u3042\u308b<\/li>\n<li>\u4e00\u90e8\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u691c\u8a3c\u300d\u6a5f\u80fd\u306f\u9ad8\u30ec\u30d9\u30eb\u306e\u8a18\u8ff0\u3067\u3042\u308a\u3001DNSSEC\u306e\u30cb\u30fc\u30ba\u3068\u5408\u81f4\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u304c\u5fc5\u8981<\/li>\n<li>\u8907\u6570\u306eSite24x7\u30e2\u30b8\u30e5\u30fc\u30eb\u4f75\u7528\u306b\u3088\u308b\u6700\u826f\u306e\u4f53\u9a13<\/li>\n<\/ul>\n<h3 id='4-uptrends'  id=\"boomdevs_8\">4. Uptrends<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32351\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/4_logo_Uptrends.webp\" alt=\"Uptrends\" width=\"300\" height=\"112\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/4_logo_Uptrends.webp 316w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/4_logo_Uptrends-300x112.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Uptrends\u306f\u3001\u6700\u3082\u91cd\u8981\u306a\u89b3\u70b9\u2014\u30e6\u30fc\u30b6\u30fc\u304c\u7570\u306a\u308b\u5730\u57df\u3067\u4f53\u9a13\u3059\u308bDNS\u2014\u304b\u3089DNS\u3092\u691c\u8a3c\u3057\u305f\u3044\u30c1\u30fc\u30e0\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002DNS\u554f\u984c\u306f\u5730\u7406\u7684\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u2014\u30ea\u30be\u30eb\u30d0\u306e\u6319\u52d5\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\u3001\u4f1d\u64ad\u306e\u4e00\u8cab\u6027\u306f\u3059\u3079\u3066\u7570\u306a\u308a\u5f97\u308b\u2014\u5916\u90e8\u306e\u8907\u6570\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u30c1\u30a7\u30c3\u30af\u306b\u3088\u308a\u5185\u90e8\u30c6\u30b9\u30c8\u3067\u306f\u898b\u3064\u3051\u3089\u308c\u306a\u3044\u554f\u984c\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002Uptrends\u306e\u5f37\u307f\u306f\u3001\u4e3b\u8981\u30ec\u30b3\u30fc\u30c9\u306e\u4e16\u754c\u4e2d\u3067\u306e\u4e00\u8cab\u3057\u305f\u89e3\u6c7a\u3092\u7d99\u7d9a\u7684\u306b\u691c\u8a3c\u3057\u3001\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u9045\u5ef6\u3084\u30a2\u30d7\u30ea\u63a5\u7d9a\u9045\u5ef6\u306b\u7e4b\u304c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5909\u5316\u3092\u5f37\u8abf\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u56fd\u969b\u7684\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u3042\u308b\u30ab\u30b9\u30bf\u30de\u30fc\u5411\u3051\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u90e8\u5206\u7684\u306a\u5730\u57df\u306eDNS\u554f\u984c\u304c\u30b3\u30a2\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u30c1\u30fc\u30e0\u306b\u306f\u300c\u554f\u984c\u306a\u3057\u300d\u306b\u898b\u3048\u3066\u3082\u91cd\u8981\u306a\u30e6\u30fc\u30b6\u30fc\u5c64\u306b\u5f71\u97ff\u3059\u308b\u5834\u5408\u306b\u7279\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u5730\u57df\u5225DNS\u53ef\u8996\u5316\u306e\u305f\u3081\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8<\/li>\n<li>\u8907\u6570\u306eDNS\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u3092\u76e3\u8996\uff08\u300cIP\u304c\u5fdc\u7b54\u3059\u308b\u304b\u300d\u3060\u3051\u3067\u306a\u3044\uff09<\/li>\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff0f\u30ec\u30a4\u30c6\u30f3\u30b7\u8ffd\u8de1\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u691c\u8a3c\u306b\u5f37\u307f<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u5916\u90e8\u76e3\u8996\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5185\u90e8\u30ea\u30be\u30eb\u30d0\u76e3\u8996\u3092\u7f6e\u304d\u63db\u3048\u3089\u308c\u306a\u3044<\/li>\n<li>\u8907\u6570\u30ec\u30b3\u30fc\u30c9\u69cb\u6210\u306e\u5834\u5408\u3001\u30a2\u30e9\u30fc\u30c8\u8abf\u6574\u304c\u5fc5\u8981<\/li>\n<li>\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u306f\u3088\u308a\u9ad8\u7d1a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u6df1\u3044\u30c1\u30a7\u30fc\u30f3\uff0f\u653b\u6483\u89e3\u6790\u3092\u597d\u3080\u5834\u5408\u304c\u3042\u308b<\/li>\n<\/ul>\n<h3 id='5-catchpoint'  id=\"boomdevs_9\">5. Catchpoint<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32393\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/5_logo_Catchpoint.webp\" alt=\"Catchpoint\" width=\"300\" height=\"98\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/5_logo_Catchpoint.webp 406w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/5_logo_Catchpoint-300x98.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Catchpoint\u306f\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b0\u30ec\u30fc\u30c9\u306e<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>\u304c\u5fc5\u8981\u3067\u3001DNS\u3092\u3088\u308a\u5927\u304d\u306a\u300c\u30c7\u30b8\u30bf\u30eb\u4f53\u9a13\u300d\u5206\u91ce\u306e\u4e00\u90e8\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u7d44\u7e54\u5411\u3051\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4fa1\u5024\u306e\u63d0\u6848\u306f\u3001\u969c\u5bb3\u3092\u691c\u77e5\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u672c\u5f53\u306b\u91cd\u8981\u306a\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u554f\u3044\u306b\u7b54\u3048\u3084\u3059\u304f\u3059\u308b\u3053\u3068\uff1a<strong>\u3069\u3053\u3067<\/strong>\u89e3\u6c7a\u304c\u65ad\u305f\u308c\u305f\u306e\u304b\u3001\u554f\u984c\u3092\u8fc5\u901f\u306b\u6b63\u3057\u3044\u6240\u6709\u8005\u306b\u5272\u308a\u5f53\u3066\u308b\u65b9\u6cd5\u306f\u4f55\u304b\uff1f\u3067\u3059\u3002\u8907\u96d1\u306a\u74b0\u5883\u2014\u8907\u6570\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u914d\u4fe1\u3001CDN\u3084\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u591a\u7528\u2014\u3067\u306fDNS\u554f\u984c\u306f\u65ad\u7d9a\u7684\u304b\u3064\u7279\u5b9a\u304c\u96e3\u3057\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Catchpoint\u306f\u591a\u304f\u306e\u8996\u70b9\u304b\u3089\u306e\u4e00\u8cab\u3057\u305f\u30c7\u30fc\u30bf\u3068\u3001\u305d\u308c\u3092\u7528\u3044\u305f\u8fc5\u901f\u306a\u30c8\u30ea\u30a2\u30fc\u30b8\u3001\u660e\u78ba\u306a\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u3001\u6700\u7d42\u30e6\u30fc\u30b6\u30fc\u306e\u5831\u544a\u524d\u306e\u7a4d\u6975\u7684\u691c\u77e5\u3092\u6c42\u3081\u308b\u6210\u719f\u3057\u305f\u904b\u7528\u306b\u6700\u9069\u3067\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u300c\u30c1\u30a7\u30fc\u30f3\u306e\u3069\u3053\u3067\u5931\u6557\u3057\u305f\u304b\uff1f\u300d\u3078\u306e\u5f37\u529b\u306a\u8a3a\u65ad<\/li>\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u4e0d\u6e80\u3092\u8a00\u3046\u524d\u306e\u9045\u5ef6\u3068\u969c\u5bb3\u306e\u7a4d\u6975\u691c\u77e5\u306b\u5bfe\u5fdc<\/li>\n<li>\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u5bfe\u5fdc\u306e\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u4f53\u5236<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u5c0f\u898f\u6a21\u30b5\u30a4\u30c8\u306b\u306f\u901a\u5e38\u30aa\u30fc\u30d0\u30fc\u30b9\u30da\u30c3\u30af\uff08\u304a\u3088\u3073\u4e88\u7b97\u8d85\u904e\uff09<\/li>\n<li>DNS\u5358\u4f53\u3088\u308a\u8907\u6570\u306e\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u4f75\u7528\u304c\u6700\u826f<\/li>\n<li>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\uff0f\u904b\u7528\u7ba1\u7406\u306f\u8efd\u91cf\u30c4\u30fc\u30eb\u3088\u308a\u624b\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308b<\/li>\n<\/ul>\n<h3 id='6-thousandeyes'  id=\"boomdevs_10\">6. ThousandEyes<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32386\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/6_logo_ThousandEyes.webp\" alt=\"ThousandEyes\" width=\"300\" height=\"85\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/6_logo_ThousandEyes.webp 518w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/6_logo_ThousandEyes-300x85.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>ThousandEyes\u306f\u3001DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u53ef\u8996\u5316\u304a\u3088\u3073\u3088\u308a\u6df1\u3044\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306e\u5f37\u529b\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/website-monitoring-errors-dns-tcp-tls-http\/\">DNS\u969c\u5bb3<\/a>\u3084\u9045\u5ef6\u306f\u3001\u7d4c\u8def\u306e\u4e0d\u5b89\u5b9a\u6027\u3001ISP\u30ec\u30d9\u30eb\u306e\u554f\u984c\u3001\u7d4c\u8def\u306e\u6df7\u96d1\u306a\u3069\u3001\u5e83\u7bc4\u56f2\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u554f\u984c\u3068\u76f8\u95a2\u3059\u308b\u5834\u5408\u304c\u591a\u304f\u3001DNS\u30c6\u30b9\u30c8\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u8a3a\u65ad\u3068\u9023\u643a\u3055\u305b\u308b\u3053\u3068\u3067\u539f\u56e0\u7279\u5b9a\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u53ef\u80fd\u3067\u3059\u3002\u4e00\u822c\u7684\u306b\u5927\u898f\u6a21\u306a\u30c1\u30fc\u30e0\u3067\u4f53\u7cfb\u7684\u306b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\u3001\u554f\u984c\u304cDNS\u306e\u6b63\u78ba\u6027\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u691c\u8a3c\uff0f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u884c\u52d5\u306e\u3044\u305a\u308c\u3067\u3042\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3001\u3055\u3089\u306b\u8996\u70b9\u9593\u3068\u6a29\u5a01\u30a4\u30f3\u30d5\u30e9\u9593\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6319\u52d5\u3068\u76f8\u95a2\u3055\u305b\u307e\u3059\u3002\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u30d7\u30ed\u30bb\u30b9\u306b\u300cDNS\uff0b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831\u3092\u4e00\u5143\u5316\u3057\u305f\u30b9\u30c8\u30fc\u30ea\u30fc\u300d\u304c\u5f79\u7acb\u3064\u5834\u5408\u3001ThousandEyes\u306f\u5019\u88dc\u306b\u6319\u304c\u308a\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u5c02\u7528\u8a2d\u8a08\u306eDNS\u30b5\u30fc\u30d0\u30fc\uff0f\u30c8\u30ec\u30fc\u30b9\uff0fDNSSEC\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8<\/li>\n<li>DNS\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u76f8\u95a2\u89e3\u6790\u306b\u3088\u308b\u512a\u308c\u305f\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/li>\n<li>\u5f37\u529b\u306a\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30e2\u30c7\u30eb<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u57fa\u672c\u7684\u306aDNS\u7a3c\u50cd\u76e3\u8996\u30c4\u30fc\u30eb\u3088\u308a\u8907\u96d1<\/li>\n<li>\u901a\u5e38\u306f\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u5411\u3051\u306e\u4fa1\u683c\uff0f\u30dd\u30b8\u30b7\u30e7\u30cb\u30f3\u30b0<\/li>\n<li>\u30c7\u30fc\u30bf\u306e\u6df1\u3055\u3092\u6d3b\u7528\u3059\u308b\u306b\u306f\u904b\u7528\u6210\u719f\u5ea6\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<h3 id='7-datadog'  id=\"boomdevs_11\">7. Datadog<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32379\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/7_logo_Datadog.webp\" alt=\"Datadog\" width=\"300\" height=\"201\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/7_logo_Datadog.webp 338w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/7_logo_Datadog-300x201.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/datadog-competitors\/\">Datadog<\/a>\u306f\u3001DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u5e83\u7bc4\u306a\u30aa\u30d6\u30b6\u30fc\u30d0\u30d3\u30ea\u30c6\u30a3\u6226\u7565\u306e\u4e00\u90e8\u3068\u3057\u305f\u3044\u5834\u5408\u306b\u6700\u9069\u3067\u3059\u3002\u7279\u306b\u5fa1\u793e\u306e\u30c1\u30fc\u30e0\u304c\u3059\u3067\u306b\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3001\u30a2\u30e9\u30fc\u30c8\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u3001SLO\u306bDatadog\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u305d\u3046\u3067\u3059\u3002DNS\u30c1\u30a7\u30c3\u30af\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e1\u30c8\u30ea\u30af\u30b9\u3001\u30a4\u30f3\u30d5\u30e9\u306e\u5065\u5eb7\u72b6\u614b\u3001\u30e6\u30fc\u30b6\u30fc\u5411\u3051\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u76e3\u8996\u3068\u76f8\u95a2\u53ef\u80fd\u306a\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u4fe1\u53f7\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001DNS\u304c\u30a8\u30e9\u30fc\u3084\u9045\u5ef6\u306e\u539f\u56e0\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u8a3c\u660e\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u672c\u5f53\u306e\u5229\u70b9\u306f\u904b\u7528\u9762\u306b\u3042\u308a\u3001DNS\u7d50\u679c\u306f\u4ed6\u306e\u672c\u756a\u30c6\u30ec\u30e1\u30c8\u30ea\u30fc\u3068\u540c\u3058\u3088\u3046\u306b\u6271\u308f\u308c\u3001\u540c\u3058\u30a2\u30e9\u30fc\u30c8\u30dd\u30ea\u30b7\u30fc\u3084\u30aa\u30f3\u30b3\u30fc\u30eb\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3078\u6d41\u3057\u8fbc\u3081\u307e\u3059\u3002DNS\u7126\u70b9\u306e\u30b9\u30bf\u30f3\u30c9\u30a2\u30ed\u30f3\u88fd\u54c1\u3088\u308a\u3001\u7d71\u5408\u76e3\u8996\u30b9\u30bf\u30c3\u30af\u3092\u91cd\u8996\u3059\u308b\u30c1\u30fc\u30e0\u306b\u306f\u6700\u3082\u52b9\u7387\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u9045\u5ef6\u89e3\u6c7a\u30fb\u4e88\u671f\u3057\u306a\u3044DNS\u5fdc\u7b54\u306b\u30a2\u30e9\u30fc\u30c8<\/li>\n<li>Datadog\u306e\u30aa\u30d6\u30b6\u30fc\u30d0\u30d3\u30ea\u30c6\u30a3\u304a\u3088\u3073\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3068\u81ea\u7136\u306b\u7d71\u5408<\/li>\n<li>\u591a\u5c64\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u76e3\u8996\uff08DNS\uff0b\u8ffd\u52a0\uff09\u306b\u5f37\u3044<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u300cDNS\u5c02\u7528\u300d\u30c4\u30fc\u30eb\u3067\u306f\u306a\u304f\u3001\u30b3\u30b9\u30c8\uff0f\u4fa1\u5024\u306fDatadog\u5168\u4f53\u306e\u4f7f\u7528\u5ea6\u306b\u4f9d\u5b58<\/li>\n<li>\u30ce\u30a4\u30ba\u306e\u5c11\u306a\u3044\u30a2\u30e9\u30fc\u30c8\u306e\u305f\u3081\u306b\u30c6\u30b9\u30c8\u8a2d\u8a08\u306b\u914d\u616e\u304c\u5fc5\u8981<\/li>\n<li>\u8a73\u7d30\u306aDNS\u59d4\u4efb\u76e3\u67fb\u306f\u4e3b\u306a\u30d5\u30a9\u30fc\u30ab\u30b9\u3067\u306f\u306a\u3044<\/li>\n<\/ul>\n<h3 id='8-uptime-com'  id=\"boomdevs_12\">8. Uptime.com<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32372\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/8_logo_Uptime_com-.webp\" alt=\"Uptime.com\" width=\"300\" height=\"95\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/8_logo_Uptime_com-.webp 430w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/8_logo_Uptime_com--300x95.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Uptime.com\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u983b\u7e41\u306b\u5b9f\u884c\u3055\u308c\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u306b\u6700\u9069\u5316\u3055\u308c\u305fDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u671b\u3080\u30c1\u30fc\u30e0\u306b\u5b9f\u7528\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002DNS\u554f\u984c\u306f\u300c\u5168\u3066\u304c\u58ca\u308c\u3066\u3044\u308b\u300d\u75c7\u72b6\u3092\u5f15\u304d\u8d77\u3053\u3059\u305f\u3081\u8fc5\u901f\u306a\u691c\u77e5\u304c\u5fc5\u8981\u3067\u3001\u77ed\u3044\u9593\u9694\u3067\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067\u60aa\u3044\u5909\u66f4\u3084\u969c\u5bb3\u3068\u6700\u521d\u306e\u30a2\u30e9\u30fc\u30c8\u306e\u9593\u306e\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002Uptime.com\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u5358\u306a\u308b\u5408\u5426\u30b7\u30b0\u30ca\u30eb\u3067\u306f\u306a\u304f\u3001\u969c\u5bb3\u304c\u4e00\u8cab\u7684\u304b\u65ad\u7d9a\u7684\u304b\u7279\u5b9a\u306e\u89e3\u6c7a\u6319\u52d5\u306b\u7d50\u3073\u3064\u3044\u3066\u3044\u308b\u304b\u3092\u8b58\u5225\u3057\u3084\u3059\u304f\u3059\u308b\u5b9f\u7528\u7684\u306a\u51fa\u529b\u3092\u91cd\u8996\u3057\u307e\u3059\u3002\u904b\u7528\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u3092\u91cd\u8996\u3059\u308b\u7d44\u7e54\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u57fa\u672c\u7684\u306aDNS\u30c1\u30a7\u30c3\u30af\u3092\u8a2d\u5b9a\u3057\u3001\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u30dd\u30ea\u30b7\u30fc\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3057\u3001\u904e\u53bb\u30c7\u30fc\u30bf\u3067\u30d1\u30bf\u30fc\u30f3\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u983b\u7e41\u306aDNS\u30c1\u30a7\u30c3\u30af\uff081\u301c60\u5206\u9593\u9694\uff09\u306b\u3088\u308b\u969c\u5bb3\u30fb\u5909\u66f4\u691c\u77e5<\/li>\n<li>\u5fdc\u7b54\u3084\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u5411\u3051\u306e\u6280\u8853\u7684\u8a73\u7d30<\/li>\n<li>DNS\u304c\u540c\u793e\u76e3\u8996\u30e2\u30c7\u30eb\u306e\u4e3b\u8981\u306a\u30c1\u30a7\u30c3\u30af\u30bf\u30a4\u30d7<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>DNS\u30ac\u30d0\u30ca\u30f3\u30b9\uff0f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b9\u30a4\u30fc\u30c8\u3068\u3057\u3066\u306f\u5c02\u7528\u30c4\u30fc\u30eb\u306b\u52a3\u308b<\/li>\n<li>\u59d4\u4efb\uff0fDNSSEC\u306e\u6df1\u3044\u691c\u8a3c\u306b\u306f\u5225\u9014\u76e3\u67fb\u30c4\u30fc\u30eb\u304c\u671b\u307e\u3057\u3044<\/li>\n<li>\u30c1\u30a7\u30c3\u30af\u3092DNS\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u5408\u308f\u305b\u3066\u8a2d\u5b9a\u3059\u308b\u898f\u5f8b\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<h3 id='9-paessler-prtg'  id=\"boomdevs_13\">9. Paessler PRTG<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32365\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/9_logo_Paessler.webp\" alt=\"Paessler PRTG\" width=\"300\" height=\"91\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/9_logo_Paessler.webp 356w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/9_logo_Paessler-300x91.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>PRTG\u306f\u3001\u30bb\u30f3\u30b5\u30fc\u306b\u3088\u308b\u76e3\u8996\u3067\u5185\u90e8\u30a4\u30f3\u30d5\u30e9\u3001\u7279\u306b\u5185\u90e8DNS\u30b5\u30fc\u30d0\u30fc\u3084\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30be\u30fc\u30f3\u306e\u5f37\u529b\u306a\u30ab\u30d0\u30ec\u30c3\u30b8\u3092\u6c42\u3081\u308b\u7d44\u7e54\u306b\u6700\u9069\u3067\u3059\u3002\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u74b0\u5883\u306eDNS\u306f\u5358\u306a\u308b\u516c\u958b\u89e3\u6c7a\u3060\u3051\u3067\u306a\u304f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30b5\u30fc\u30d3\u30b9\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5411\u3051\u306e\u5185\u90e8\u30cd\u30fc\u30e0\u89e3\u6c7a\u304c\u542b\u307e\u308c\u3001\u5916\u90e8DNS\u76e3\u8996\u306f\u4fa1\u5024\u304c\u9650\u5b9a\u7684\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002PRTG\u306e\u30bb\u30f3\u30b5\u30fc\u30e2\u30c7\u30eb\u306fDNS\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u671f\u5f85\u3055\u308c\u308b\u6319\u52d5\u3092\u691c\u8a3c\u3057\u3001\u76e3\u8996\u30a4\u30f3\u30d5\u30e9\u306e\u904b\u7528\uff08\u30d7\u30ed\u30fc\u30d6\u3001\u30bb\u30f3\u30b5\u30fc\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\uff09\u306b\u6163\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u67d4\u8edf\u304b\u3064\u8a2d\u5b9a\u53ef\u80fd\u306a\u30c1\u30a7\u30c3\u30af\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30aa\u30f3\u30d7\u30ec\u307e\u305f\u306f\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u306e\u76e3\u8996\u30d7\u30ed\u30b0\u30e9\u30e0\u3067DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u542b\u3081\u305f\u3044\u5834\u5408\u3001\u7279\u306b\u5185\u90e8\u306e\u4fe1\u983c\u6027\u304c\u5916\u90e8\u53ef\u7528\u6027\u3068\u540c\u69d8\u306b\u91cd\u8981\u306a\u5834\u5408\u306b\u3088\u304f\u5019\u88dc\u306b\u3042\u304c\u308a\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>\u76f4\u63a5\u7684\u306a\u300c\u89e3\u6c7a\uff0b\u671f\u5f85\u5024\u6bd4\u8f03\u300d\u30e2\u30c7\u30eb<\/li>\n<li>\u5185\u90e8DNS\u304a\u3088\u3073\u30b5\u30fc\u30d0\u30fc\u4e2d\u5fc3\u306e\u76e3\u8996\u306b\u9069\u3059<\/li>\n<li>\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u6307\u6a19\u3092\u30bb\u30f3\u30b5\u30fc\u65b9\u5f0f\u306b\u7d44\u307f\u8fbc\u307f<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>SaaS\u578bDNS\u76e3\u8996\u3088\u308a\u30a4\u30f3\u30d5\u30e9\uff0f\u7ba1\u7406\u8ca0\u62c5\u304c\u5927\u304d\u3044<\/li>\n<li>\u30bb\u30f3\u30b5\u30fc\u306e\u8a08\u753b\u3068\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u306f\u7ba1\u7406\u304c\u5fc5\u8981<\/li>\n<li>\u5916\u90e8\uff0f\u5168\u4f53\u306e\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u30ab\u30d0\u30ec\u30c3\u30b8\u306f\u30d7\u30ed\u30fc\u30d6\u914d\u7f6e\u306b\u4f9d\u5b58<\/li>\n<\/ul>\n<h3 id='10-solarwinds-server-application-monitor'  id=\"boomdevs_14\">10. SolarWinds Server &amp; Application Monitor<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-32358\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/10_logo_SolarWinds_Server_Application_Monitor.webp\" alt=\"SolarWinds Server &amp; Application Monitor\" width=\"300\" height=\"70\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/10_logo_SolarWinds_Server_Application_Monitor.webp 526w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2026\/01\/10_logo_SolarWinds_Server_Application_Monitor-300x70.webp 300w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>SolarWinds SAM\u306f\u3001\u7279\u306bWindows\u4e2d\u5fc3\u306e\u74b0\u5883\u3067\u3001\u30b5\u30fc\u30d0\u30fc\uff0f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u76e3\u8996\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u5185\u3067DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002DNS\u306fActive Directory\u3001\u5185\u90e8\u30b5\u30fc\u30d3\u30b9\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b9\u30bf\u30c3\u30af\u306e\u91cd\u8981\u306a\u4f9d\u5b58\u8981\u7d20\u3067\u3001SAM\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308aDNS\u306e\u5fdc\u7b54\u6027\u3068\u6b63\u78ba\u6027\u3092\u3088\u308a\u5e83\u7bc4\u306a\u30a4\u30f3\u30d5\u30e9\u5065\u5eb7\u30e2\u30c7\u30eb\u5185\u306e\u6e2c\u5b9a\u3067\u304d\u308b\u300c\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u300d\u4fe1\u53f7\u3068\u3057\u3066\u6271\u3048\u307e\u3059\u3002SolarWinds\u3092\u30b5\u30fc\u30d0\u30fc\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u53ef\u8996\u5316\u306e\u6a19\u6e96\u30c4\u30fc\u30eb\u3068\u3057\u3066\u65e2\u306b\u4f7f\u7528\u3057\u3066\u3044\u3066\u3001DNS\u30c1\u30a7\u30c3\u30af\u3082\u540c\u3058\u57fa\u6e96\u5024\u8a2d\u5b9a\u3001\u30a2\u30e9\u30fc\u30c8\u3001\u904b\u7528\u30ec\u30dd\u30fc\u30c8\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u5408\u308f\u305b\u305f\u3044\u5834\u5408\u306b\u6700\u3082\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u7d71\u5408\u76e3\u8996\u30b9\u30a4\u30fc\u30c8\u3092\u597d\u307f\u3001SolarWinds\u306e\u904b\u7528\u304c\u6574\u3063\u3066\u3044\u308b\u30c1\u30fc\u30e0\u306b\u306f\u3001\u5225\u9014DNS\u5c02\u7528\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u5c0e\u5165\u305b\u305a\u306bDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u904b\u7528\u5316\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong style=\"color: green\">\u9577\u6240:<\/strong><\/p>\n<ul>\n<li>DNS\u5fdc\u7b54\u691c\u8a3c\u3068\u6642\u9593\u6e2c\u5b9a\u306b\u7279\u5316\u3057\u305f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30e2\u30cb\u30bf\u30fc<\/li>\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\u691c\u51fa\u306e\u305f\u3081\u306e\u57fa\u6e96\u5024\u8a2d\u5b9a<\/li>\n<li>Windows\uff0fDNS\u30b5\u30fc\u30d0\u30fc\u74b0\u5883\u306b\u5f37\u304f\u9069\u5408<\/li>\n<\/ul>\n<p><strong style=\"color: darkred\">\u77ed\u6240:<\/strong><\/p>\n<ul>\n<li>\u8efd\u91cfDNS\u76e3\u8996\u30b5\u30fc\u30d3\u30b9\u3088\u308a\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u304c\u5927\u304d\u3044<\/li>\n<li>SAM\u3092\u5e83\u304f\u4f75\u7528\u3059\u308b\u5834\u5408\u306b\u6700\u3082\u4fa1\u5024\u304c\u3042\u308b<\/li>\n<li>\u30e9\u30a4\u30bb\u30f3\u30b9\u3084\u30b9\u30bf\u30c3\u30af\u306e\u8907\u96d1\u3055\u304c\u5c0f\u898f\u6a21\u30c1\u30fc\u30e0\u306b\u306f\u904e\u5270\u306a\u53ef\u80fd\u6027<\/li>\n<\/ul>\n<h2 id='\u9069\u5207\u306adns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u9078\u3073\u65b9'  id=\"boomdevs_15\">\u9069\u5207\u306aDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u9078\u3073\u65b9<\/h2>\n<p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u300c\u5c0f\u3055\u306a\u5c64\u3001\u5927\u304d\u306a\u5f71\u97ff\u300d\u306e\u5206\u91ce\u3067\u3059\uff1aDNS\u304c\u8aa4\u3063\u3066\u3044\u305f\u308a\u9045\u304b\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3001API\u3001\u30e1\u30fc\u30eb\u3001\u5185\u90e8\u30a2\u30d7\u30ea\u307e\u3067\u304c\u52d5\u304b\u306a\u304f\u898b\u3048\u307e\u3059\u3002\u4e0a\u8a18\u306e\u30c4\u30fc\u30eb\u306f\u3001\u8efd\u91cf\u306aDNS\u5909\u66f4\u691c\u77e5\uff08\u8aa4\u7de8\u96c6\u306e\u691c\u51fa\u306b\u7406\u60f3\u7684\uff09\u304b\u3089<a href=\"https:\/\/www.dotcom-monitor.com\/features\/synthetic-monitoring\/\">\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b0\u30ec\u30fc\u30c9\u306e\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/a>\u307e\u3067\u5e45\u5e83\u304f\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7d14\u7c8b\u306aDNS\u5909\u66f4\u30a2\u30e9\u30fc\u30c8\u3092\u57fa\u6e96\u306b\u9078\u3076\u306a\u3089\u3001UptimeRobot\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u306f\u8fc5\u901f\u304b\u3064\u30b3\u30b9\u30c8\u52b9\u679c\u306e\u9ad8\u3044\u52dd\u5229\u306b\u306a\u308a\u307e\u3059\u3002\u4f01\u696d\u898f\u6a21\u3067\u6df1\u3044DNS\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u306a\u3089\u3001ThousandEyes\u3084Catchpoint\u306e\u3088\u3046\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u304c\u512a\u308c\u305f\u8a3a\u65ad\u3068\u914d\u4fe1\u7d4c\u8def\u5168\u4f53\u306e\u76f8\u95a2\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5168\u4f53\u7684\u306b\u6700\u826f\u306e\u30d0\u30e9\u30f3\u30b9\u2014\u6b63\u78ba\u306aDNS\u306e\u6b63\u5f53\u6027\uff0b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u691c\u8a3c\u3001\u8907\u6570\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u53ef\u8996\u5316\u3001\u5b9f\u7528\u7684\u306a\u30ec\u30dd\u30fc\u30c8\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3088\u308a\u5e83\u7bc4\u56f2\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/what-is-synthetic-monitoring\/\">\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u306b\u62e1\u5f35\u3067\u304d\u308b\u80fd\u529b\u2014\u3092\u6c42\u3081\u308b\u306a\u3089\u3001<a href=\"https:\/\/userauth.dotcom-monitor.com\/Account\/FreeTrialSignUp?SolutionType=Monitoring\">Dotcom-Monitor<\/a>\u304c\u6700\u3082\u5b8c\u5168\u304b\u3064\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u9078\u629e\u80a2\u3068\u3057\u3066\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>2026\u5e74\u306e\u6700\u9ad8\u306eDNS\u76e3\u8996\u30c4\u30fc\u30eb\u3092\u6bd4\u8f03\u3002\u30de\u30eb\u30c1\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u30c1\u30a7\u30c3\u30af\u3068\u30a2\u30e9\u30fc\u30c8\u3067\u3001\u969c\u5bb3\u3001\u9045\u3044\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u30ec\u30b3\u30fc\u30c9\u5909\u66f4\u3001DNSSEC\u306e\u554f\u984c\u3092\u691c\u51fa\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":39,"featured_media":32404,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6027],"tags":[],"class_list":["post-32492","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-6027"],"_links":{"self":[{"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/posts\/32492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/comments?post=32492"}],"version-history":[{"count":0,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/posts\/32492\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/media\/32404"}],"wp:attachment":[{"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/media?parent=32492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/categories?post=32492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/wp-json\/wp\/v2\/tags?post=32492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}