{"id":31928,"date":"2025-12-21T19:53:55","date_gmt":"2025-12-21T19:53:55","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/monitor-ssl-certificate-expiration\/"},"modified":"2026-04-04T07:15:33","modified_gmt":"2026-04-04T07:15:33","slug":"monitor-ssl-certificate-expiration","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/monitor-ssl-certificate-expiration\/","title":{"rendered":"SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u306e\u76e3\u8996\u65b9\u6cd5"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-31916\" src=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2025\/12\/monitor-ssl-certificate-expiration.webp\" alt=\"SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3092\u76e3\u8996\u3059\u308b\u65b9\u6cd5\" width=\"480\" height=\"320\" srcset=\"https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2025\/12\/monitor-ssl-certificate-expiration.webp 1280w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2025\/12\/monitor-ssl-certificate-expiration-300x200.webp 300w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2025\/12\/monitor-ssl-certificate-expiration-1024x682.webp 1024w, https:\/\/www.dotcom-monitor.com\/blog\/wp-content\/uploads\/sites\/3\/2025\/12\/monitor-ssl-certificate-expiration-768x512.webp 768w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/p>\n<p>2026\u5e74\u3001\u30c7\u30b8\u30bf\u30eb\u306e\u4e16\u754c\u306f\u3053\u308c\u307e\u3067\u306b\u306a\u304f\u901f\u304f\u52d5\u3044\u3066\u3044\u307e\u3059\u3002Google\u306e\u3088\u3046\u306a\u696d\u754c\u306e\u5927\u624b\u4f01\u696d\u304cSSL\/TLS\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9593\u3092\u77ed\u7e2e\u3057\u3001\u6a19\u6e96\u309290\u65e5\u30b5\u30a4\u30af\u30eb\u306b\u79fb\u884c\u3057\u3064\u3064\u3042\u308b\u4e2d\u3001\u30df\u30b9\u306e\u4f59\u5730\u306f\u6d88\u3048\u53bb\u308a\u307e\u3057\u305f\u3002\u300c\u8a2d\u5b9a\u3057\u3066\u5fd8\u308c\u308b\u300d\u30de\u30a4\u30f3\u30c9\u30bb\u30c3\u30c8\u306f\u3082\u306f\u3084\u901a\u7528\u3057\u307e\u305b\u3093\u3002\u8a3c\u660e\u66f8\u3092\u7a4d\u6975\u7684\u306b\u76e3\u8996\u3057\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u308b\u5371\u967a\u6027\u3060\u3051\u3067\u306a\u304f\u3001\u3042\u306a\u305f\u306e\u30c7\u30b8\u30bf\u30eb\u4e8b\u696d\u5168\u4f53\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001\u306a\u305cSSL\u76e3\u8996\u304c\u73fe\u4ee3\u306e\u30a6\u30a7\u30d6\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u57fa\u76e4\u3067\u3042\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u30b5\u30a4\u30c8\u3092\u4fe1\u983c\u3055\u308c\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306a\u72b6\u614b\u306b\u4fdd\u3064\u65b9\u6cd5\u3092\u63a2\u308a\u307e\u3059\u3002<\/p>\n<h2 id='\u30c9\u30df\u30ce\u52b9\u679c-1\u3064\u306e\u671f\u9650\u5207\u308c\u8a3c\u660e\u66f8\u304c\u7d44\u7e54\u5168\u4f53\u3092\u6df7\u4e71\u3055\u305b\u308b\u4ed5\u7d44\u307f'  id=\"boomdevs_1\">\u30c9\u30df\u30ce\u52b9\u679c\uff1a1\u3064\u306e\u671f\u9650\u5207\u308c\u8a3c\u660e\u66f8\u304c\u7d44\u7e54\u5168\u4f53\u3092\u6df7\u4e71\u3055\u305b\u308b\u4ed5\u7d44\u307f<\/h2>\n<p>\u671f\u9650\u5207\u308c\u306eSSL\u8a3c\u660e\u66f8\u306f\u5358\u72ec\u306e\u554f\u984c\u3067\u3042\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3084\u55b6\u696d\u304b\u3089DevOps\u3001\u30ab\u30b9\u30bf\u30de\u30fc\u30b5\u30dd\u30fc\u30c8\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u90e8\u9580\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u9023\u9396\u53cd\u5fdc\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/p>\n<h3 id='\u5b89\u5168\u3067\u306f\u3042\u308a\u307e\u305b\u3093-\u8b66\u544a'  id=\"boomdevs_2\">\u300c\u5b89\u5168\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u300d\u8b66\u544a<\/h3>\n<p><strong>\u3053\u308c\u304c\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u3068\u30e6\u30fc\u30b6\u30fc\u4fe1\u983c\u3092\u77ac\u6642\u306b\u6bba\u3059\u7406\u7531\u3002<\/strong><\/p>\n<p>\u8a3c\u660e\u66f8\u304c\u671f\u9650\u5207\u308c\u306b\u306a\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u3042\u306a\u305f\u304c\u4e39\u5ff5\u306b\u30c7\u30b6\u30a4\u30f3\u3057\u305f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u5168\u9762\u7684\u306a\u300c\u63a5\u7d9a\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u300d\u8b66\u544a\u753b\u9762\u306b\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u3092\u5f37\u304f\u610f\u8b58\u3059\u308b\u6642\u4ee3\u306b\u304a\u3044\u3066\u3001\u3053\u308c\u306f\u300c\u7acb\u3061\u5165\u308a\u7981\u6b62\u300d\u306e\u4fe1\u53f7\u3067\u3059\u3002\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u3001\u5927\u591a\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3053\u306e\u8b66\u544a\u3092\u898b\u305f\u77ac\u9593\u306b\u30b5\u30a4\u30c8\u3092\u96e2\u308c\u3001\u3042\u306a\u305f\u306e\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u306f\u5d29\u58ca\u3057\u3001\u30d6\u30e9\u30f3\u30c9\u306e\u8a55\u5224\u304c\u6570\u79d2\u3067\u50b7\u3064\u304d\u307e\u3059\u3002<\/p>\n<h3 id='seo\u3078\u306e\u6253\u6483'  id=\"boomdevs_3\">SEO\u3078\u306e\u6253\u6483<\/h3>\n<p><strong>\u306a\u305cGoogle\u306f\u671f\u9650\u5207\u308c\u306e\u8a3c\u660e\u66f8\u3092\u6301\u3064\u30b5\u30a4\u30c8\u3092\u30da\u30ca\u30eb\u30c6\u30a3\u3057\u3001\u30e9\u30f3\u30ad\u30f3\u30b0\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u306e\u304b\u3002<\/strong><\/p>\n<p>HTTPS\u306f\u9577\u5e74\u306b\u308f\u305f\u308a\u30e9\u30f3\u30ad\u30f3\u30b0\u30b7\u30b0\u30ca\u30eb\u3067\u3057\u305f\u304c\u30012026\u5e74\u306b\u306f\u524d\u63d0\u6761\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002Google\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u8a3c\u660e\u66f8\u304c\u671f\u9650\u5207\u308c\u306b\u306a\u308b\u3068\u3001\u30b5\u30a4\u30c8\u306f\u300c\u5b89\u5168\u3067\u306f\u306a\u3044\u300d\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002HTTPS\u306b\u4f34\u3046\u30e9\u30f3\u30ad\u30f3\u30b0\u5411\u4e0a\u52b9\u679c\u3092\u5931\u3046\u3060\u3051\u3067\u306a\u304f\u3001\u30d6\u30e9\u30a6\u30b6\u8b66\u544a\u306b\u3088\u308b\u96e2\u8131\u7387\u306e\u5897\u52a0\u304c\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u5bfe\u3057\u3001\u30b5\u30a4\u30c8\u304c\u8cea\u306e\u9ad8\u3044\u76ee\u7684\u5730\u3067\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u3092\u793a\u3057\u3001\u691c\u7d22\u7d50\u679c\u306e\u9806\u4f4d\u304c\u6025\u843d\u3057\u307e\u3059\u3002<\/p>\n<h3 id='\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u30b3\u30b9\u30c8'  id=\"boomdevs_4\">\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u30b3\u30b9\u30c8<\/h3>\n<p><strong>1\u6642\u9593\u306e\u505c\u6b62\u3067\u3082\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3084API\u63a5\u7d9a\u306b\u652f\u969c\u304c\u51fa\u308b\u53ef\u80fd\u6027\u3002<\/strong><\/p>\n<p>SSL\u306f\u8996\u899a\u7684\u306a\u300c\u9320\u524d\u300d\u4ee5\u4e0a\u306e\u3082\u306e\u3067\u3059\u3002\u73fe\u4ee3\u306e\u30a6\u30a7\u30d6\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306fAPI\u3084\u6a5f\u68b0\u9593\u901a\u4fe1\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u4f01\u696d\u306b\u3068\u3063\u3066\u30011\u6642\u9593\u306e\u505c\u6b62\u306f\u4f55\u5343\u3001\u3042\u308b\u3044\u306f\u4f55\u767e\u4e07\u30c9\u30eb\u3082\u306e\u53ce\u76ca\u640d\u5931\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u52b9\u679c\u7684\u306a<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/2023%e5%b9%b4%e3%81%ab%e3%82%a6%e3%82%a7%e3%83%96%e3%82%b5%e3%82%a4%e3%83%88%e3%81%ae%e7%a8%bc%e5%83%8d%e6%99%82%e9%96%93%e3%82%92%e7%9b%a3%e8%a6%96%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u7a3c\u50cd\u76e3\u8996<\/a>\u306f\u3001\u3053\u308c\u3089\u306e\u6280\u8853\u7684\u30c8\u30e9\u30d6\u30eb\u3092\u53ce\u76ca\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u524d\u306b\u691c\u77e5\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3 id='ssl\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u624b\u52d5\u3067\u78ba\u8a8d\u3059\u308b3\u3064\u306e\u7c21\u5358\u306a\u65b9\u6cd5'  id=\"boomdevs_5\">SSL\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u624b\u52d5\u3067\u78ba\u8a8d\u3059\u308b3\u3064\u306e\u7c21\u5358\u306a\u65b9\u6cd5<\/h3>\n<p>\u81ea\u52d5\u5316\u304c\u4e3b\u6d41\u3067\u3059\u304c\u3001\u7ba1\u7406\u8005\u306f\u7d20\u65e9\u3044\u624b\u52d5\u30c1\u30a7\u30c3\u30af\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3067\u3059\u3002<\/p>\n<h4 id='\u65b9\u6cd51-\u30d6\u30e9\u30a6\u30b6\u306e-\u9320\u524d-\u30c1\u30a7\u30c3\u30af'  id=\"boomdevs_6\">\u65b9\u6cd51\uff1a\u30d6\u30e9\u30a6\u30b6\u306e\u300c\u9320\u524d\u300d\u30c1\u30a7\u30c3\u30af<\/h4>\n<p>\u6709\u52b9\u671f\u9650\u3092\u78ba\u8a8d\u3059\u308b\u6700\u901f\u306e\u65b9\u6cd5\u306f\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>Chrome\/Edge\u306e\u5834\u5408<\/strong>\uff1aURL\u306e\u5de6\u5074\u306b\u3042\u308b\u30a2\u30a4\u30b3\u30f3\uff08\u300c\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u300d\u30a2\u30a4\u30b3\u30f3\u3084\u5357\u4eac\u9320\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff09\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c\u63a5\u7d9a\u306f\u5b89\u5168\u3067\u3059\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u304b\u3089\u300c\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li><strong>Safari\u306e\u5834\u5408<\/strong>\uff1a\u5357\u4eac\u9320\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c\u8a3c\u660e\u66f8\u3092\u8868\u793a\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u300c\u6709\u52b9\u671f\u9650\u958b\u59cb\u300d\u3068\u300c\u6709\u52b9\u671f\u9650\u7d42\u4e86\u300d\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u5373\u5ea7\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4 id='\u65b9\u6cd52-\u30aa\u30f3\u30e9\u30a4\u30f3ssl\u30c1\u30a7\u30c3\u30ab\u30fc\u306e\u5229\u7528'  id=\"boomdevs_7\">\u65b9\u6cd52\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3SSL\u30c1\u30a7\u30c3\u30ab\u30fc\u306e\u5229\u7528<\/h4>\n<p>\u3088\u308a\u8a73\u7d30\u306a\u78ba\u8a8d\u306b\u306f\u3001SSL Labs\uff08Qualys\uff09\u3084Why No Padlock\u306a\u3069\u306e\u7121\u6599\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u6709\u52b9\u671f\u9650\u306e\u65e5\u4ed8\u3060\u3051\u3067\u306a\u304f\u3001\u5305\u62ec\u7684\u306a\u300c\u5065\u5eb7\u30ec\u30dd\u30fc\u30c8\u300d\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5f31\u3044\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30b5\u30dd\u30fc\u30c8\uff08TLS 1.3\u306a\u3069\uff09\u3001\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u304c\u6b63\u3057\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<h4 id='\u65b9\u6cd53-\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u306e\u5229\u7528'  id=\"boomdevs_8\">\u65b9\u6cd53\uff1a\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u306e\u5229\u7528<\/h4>\n<p>\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084\u958b\u767a\u8005\u5411\u3051\u306b\u3001OpenSSL\u304c\u4fbf\u5229\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u6b21\u306e\u7c21\u5358\u306a\u30b3\u30de\u30f3\u30c9\u3092\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u5b9f\u884c\u3057\u3001\u4efb\u610f\u306e\u30b5\u30a4\u30c8\u306e\u6709\u52b9\u671f\u9650\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\uff1a<\/p>\n<p><code>echo | openssl s_client -servername example.com -connect example.com:443 2&gt;\/dev\/null | openssl x509 -noout -dates<\/code><\/p>\n<p>\u3053\u308c\u306f\u3001\u30d1\u30d6\u30ea\u30c3\u30af\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5185\u90e8\u30b5\u30fc\u30d0\u30fc\u306e\u78ba\u8a8d\u306b\u7279\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n<h2 id='ssl\u76e3\u8996\u306e\u81ea\u52d5\u5316\u65b9\u6cd5-\u8a2d\u5b9a\u3057\u3066\u5fd8\u308c\u308b\u3060\u3051'  id=\"boomdevs_9\">SSL\u76e3\u8996\u306e\u81ea\u52d5\u5316\u65b9\u6cd5\uff08\u8a2d\u5b9a\u3057\u3066\u5fd8\u308c\u308b\u3060\u3051\uff09<\/h2>\n<p>\u624b\u52d5\u30c1\u30a7\u30c3\u30af\u306f\u30d2\u30e5\u30fc\u30de\u30f3\u30a8\u30e9\u30fc\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u3067\u3059\u300290\u65e5\u9593\u8a3c\u660e\u66f8\u306e\u6642\u4ee3\u3067\u306f\u300124\u6642\u9593365\u65e5\u3042\u306a\u305f\u306e\u80cc\u4e2d\u3092\u898b\u5b88\u308b\u30b7\u30b9\u30c6\u30e0\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3 id='\u7a3c\u50cd\u6642\u9593-\u76e3\u8996\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528'  id=\"boomdevs_10\">\u300c\u7a3c\u50cd\u6642\u9593\u300d\u76e3\u8996\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528<\/h3>\n<p>\u30b5\u30a4\u30c8\u306e\u30d6\u30e9\u30a6\u30b6\u8b66\u544a\u3092\u5f85\u3064\u4ee3\u308f\u308a\u306b\u3001Dotcom-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\/ssl-certificate-monitoring\/\">SSL\u8a3c\u660e\u66f8\u76e3\u8996<\/a>\u3092\u5229\u7528\u3057\u3066\u3001\u30c1\u30fc\u30e0\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u5408\u308f\u305b\u305f\u30ab\u30b9\u30bf\u30e0\u95be\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u6709\u52b9\u671f\u9650\u306e<strong>30\u65e5\u300115\u65e5\u3001\u307e\u305f\u306f7\u65e5\u524d\u306b<\/strong>\u81ea\u52d5\u3067\u30e1\u30fc\u30eb\u3001SMS\u3001Slack\u306e\u30a2\u30e9\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001DevOps\u30c1\u30fc\u30e0\u306f\u6a19\u6e96\u55b6\u696d\u6642\u9593\u5185\u306b\u4f59\u88d5\u3092\u6301\u3063\u3066\u66f4\u65b0\u5bfe\u5fdc\u304c\u3067\u304d\u3001\u300c\u7dca\u6025\u300d\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u5b8c\u5168\u306b\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id='\u30bc\u30ed\u30bf\u30c3\u30c1-ssl\u7ba1\u7406\u306b\u5411\u3051\u3066'  id=\"boomdevs_11\">\u300c\u30bc\u30ed\u30bf\u30c3\u30c1\u300dSSL\u7ba1\u7406\u306b\u5411\u3051\u3066<\/h2>\n<p>2026\u5e74\u306e\u76ee\u6a19\u306f\u300c\u30bc\u30ed\u30bf\u30c3\u30c1\u300d\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3067\u3059\u2014\u4eba\u624b\u3092\u4ecb\u3055\u305a\u306b\u66f4\u65b0\u3084\u5c55\u958b\u3092\u81ea\u52d5\u3067\u884c\u3046\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u3053\u306e\u65b0\u6642\u4ee3\u306e<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/ja\/ssl-certificate-management\/\">SSL\u8a3c\u660e\u66f8\u7ba1\u7406<\/a>\u306e\u7fd2\u5f97\u306f\u3001\u3082\u306f\u3084\u30b9\u30d7\u30ec\u30c3\u30c9\u30b7\u30fc\u30c8\u306b\u3088\u308b\u7ba1\u7406\u3067\u306f\u306a\u304f\u3001\u81ea\u52d5\u5316\u3055\u308c\u305f\u30a4\u30f3\u30d5\u30e9\u69cb\u7bc9\u306b\u3088\u308a\u91cd\u52b4\u50cd\u3092\u4ee3\u884c\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3 id='let-s-encrypt\u306e\u529b'  id=\"boomdevs_12\">Let\u2019s Encrypt\u306e\u529b<\/h3>\n<p>Let\u2019s Encrypt\u306f\u7121\u6599\u3067\u81ea\u52d5\u5316\u3055\u308c\u305fSSL\u8a3c\u660e\u66f8\u3092\u63d0\u4f9b\u3057\u3001\u30a6\u30a7\u30d6\u306b\u9769\u547d\u3092\u3082\u305f\u3089\u3057\u307e\u3057\u305f\u3002ACME\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306f60\uff5e90\u65e5\u3054\u3068\u306b\u65b0\u3057\u3044\u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u7684\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u624b\u52d5\u66f4\u65b0\u306e\u5fd8\u308c\u306b\u3088\u308b\u30ea\u30b9\u30af\u304c\u5b8c\u5168\u306b\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id='\u66f4\u65b0\u30a6\u30a3\u30f3\u30c9\u30a6-\u306e\u8a2d\u5b9a'  id=\"boomdevs_13\">\u300c\u66f4\u65b0\u30a6\u30a3\u30f3\u30c9\u30a6\u300d\u306e\u8a2d\u5b9a<\/h3>\n<p>\u81ea\u52d5\u30c4\u30fc\u30eb\u3092\u4f7f\u3046\u5834\u5408\u3067\u3082\u624b\u52d5\u66f4\u65b0\u306e\u5834\u5408\u3067\u3082\u3001\u671f\u9650\u30ae\u30ea\u30ae\u30ea\u307e\u3067\u5f85\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u5fc5\u305a<strong>30\u65e5\u9593\u306e\u66f4\u65b0\u30a6\u30a3\u30f3\u30c9\u30a6<\/strong>\u3092\u8a2d\u3051\u307e\u3057\u3087\u3046\u3002\u6709\u52b9\u671f\u9650\u306e30\u65e5\u524d\u306b\u66f4\u65b0\u3059\u308b\u3053\u3068\u3092\u76ee\u6a19\u3068\u3059\u308b\u3053\u3068\u3067\u3001<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<\/a>\u306a\u3069\u306e\u6280\u8853\u7684\u306a\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u5341\u5206\u306a\u4f59\u88d5\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002\u691c\u8a3c\u5931\u6557\u3084\u30b5\u30fc\u30d0\u30fc\u306e\u8aa4\u8a2d\u5b9a\u306b\u3088\u308b\u554f\u984c\u3092\u3001\u30b5\u30a4\u30c8\u306e\u505c\u6b62\u3068\u3044\u3046\u5dee\u3057\u8feb\u3063\u305f\u30d7\u30ec\u30c3\u30b7\u30e3\u30fc\u306a\u3057\u306b\u5bfe\u51e6\u3067\u304d\u307e\u3059\u3002  <\/p>\n<h2 id='\u3088\u304f\u3042\u308bssl\u8b66\u544a\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0'  id=\"boomdevs_14\">\u3088\u304f\u3042\u308bSSL\u8b66\u544a\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n<p>\u8a3c\u660e\u66f8\u304c\u6709\u52b9\u3067\u3082\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30a8\u30e9\u30fc\u3092\u51fa\u3059\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a  <\/p>\n<ul>\n<li><strong>\u300c\u8a3c\u660e\u66f8\u304c\u4fe1\u983c\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u300d<\/strong>\uff1a\u3053\u308c\u306f\u901a\u5e38\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u300c\u4e2d\u9593\u8a3c\u660e\u66f8\u300d\u304c\u6b20\u843d\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u304c\u8a3c\u660e\u66f8\u3092\u4fe1\u983c\u3055\u308c\u305f\u30eb\u30fc\u30c8CA\u306b\u7d50\u3073\u3064\u3051\u3089\u308c\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u300c\u540d\u524d\u306e\u4e0d\u4e00\u81f4\u300d<\/strong>\uff1a\u3053\u308c\u306f\u8a3c\u660e\u66f8\u304cexample.com\u7528\u306b\u767a\u884c\u3055\u308c\u3066\u3044\u308b\u304c\u3001www\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u542b\u307e\u306a\u3044\u5834\u5408\u3084\u3001\u65b0\u3057\u3044\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u5358\u4e00\u30c9\u30e1\u30a4\u30f3\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3057\u3088\u3046\u3068\u3057\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u6df7\u5408\u30b3\u30f3\u30c6\u30f3\u30c4\u30a8\u30e9\u30fc<\/strong>\uff1a\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u30b5\u30a4\u30c8\u304chttp:\/\/\u7d4c\u7531\u3067\u753b\u50cf\u3084\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8aad\u307f\u8fbc\u3093\u3067\u3044\u308b\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u300c\u30b7\u30fc\u30eb\u300d\u304c\u7834\u3089\u308c\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30da\u30fc\u30b8\u3092\u5b89\u5168\u3067\u306a\u3044\u3068\u5224\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2 id='\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8-\u5e74\u9593ssl\u5065\u5eb7\u8a3a\u65ad'  id=\"boomdevs_15\">\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a\u5e74\u9593SSL\u5065\u5eb7\u8a3a\u65ad<\/h2>\n<p>\u81ea\u52d5\u5316\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u5e74\u9593\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f53\u5236\u3092\u300c\u5fb9\u5e95\u7684\u306b\u898b\u76f4\u3059\u300d\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\uff1a  <\/p>\n<ul>\n<li><strong>\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u30c1\u30a7\u30c3\u30af<\/strong>\uff1a\u7d44\u7e54\u5185\u306e\u3059\u3079\u3066\u306e\u8a3c\u660e\u66f8\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3001\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\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\/api-monitoring\/\">API\u76e3\u8996<\/a>\u306b\u4f7f\u7528\u3055\u308c\u308b\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3082\u542b\u307f\u307e\u3059\u3002<\/li>\n<li><strong>\u4fe1\u983c\u306e\u9023\u9396\u3092\u691c\u8a3c<\/strong>\uff1a\u3059\u3079\u3066\u306e\u4e2d\u9593\u8a3c\u660e\u66f8\u304c\u6b63\u3057\u304f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u30e2\u30d0\u30a4\u30eb\u30d6\u30e9\u30a6\u30b6\u306e\u30a8\u30e9\u30fc\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u30b5\u30dd\u30fc\u30c8\u306e\u8a55\u4fa1<\/strong>\uff1a\u53e4\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\uff08TLS 1.0\/1.1\uff09\u3092\u7121\u52b9\u306b\u3057\u3001TLS 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