{"id":33167,"date":"2026-03-12T16:16:36","date_gmt":"2026-03-12T16:16:36","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/lets-encrypt-45-day-certificate-expiration\/"},"modified":"2026-08-11T10:27:50","modified_gmt":"2026-08-11T10:27:50","slug":"lets-encrypt-45-day-certificate-expiration","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/ja\/lets-encrypt-45-day-certificate-expiration\/","title":{"rendered":"Let\u2019s Encrypt 45\u65e5\u9593\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u5207\u308c\uff1a\u76e3\u8996\u3068\u305d\u306e\u4ed6"},"content":{"rendered":"\t\t
TLS\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9593\u306f\u6025\u901f\u306b\u77ed\u7e2e\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u3059\u3079\u3066\u306e\u7d44\u7e54\u304c\u66f4\u65b0\u3001\u691c\u8a3c\u3001\u304a\u3088\u3073\u969c\u5bb3\u9632\u6b62\u306e\u65b9\u6cd5\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002Let’s Encrypt\u306f\u300190\u65e5\u9593\u306e\u8a3c\u660e\u66f8\u304b\u308945\u65e5\u9593\u306e\u8a3c\u660e\u66f8\u3078\uff08\u6bb5\u968e\u7684\u306a\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u3067\uff09\u79fb\u884c\u3057\u3001\u8a8d\u53ef\u306e\u518d\u5229\u7528\u671f\u9593\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002\u540c\u6642\u306b\u3001CA\/Browser Forum\u306e\u6295\u7968SC-081v3<\/a>\u306f\u3001\u6700\u7d42\u7684\u306b2029\u5e743\u670815\u65e5\u307e\u3067\u306b\u516c\u958bTLS\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9593\u309247\u65e5\u306b\u5236\u9650\u3059\u308b\u3001\u3088\u308a\u5e83\u7bc4\u306a\u696d\u754c\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002<\/p> \u6570\u5341\u307e\u305f\u306f\u6570\u5343\u306e\u8a3c\u660e\u66f8\u3092\u7ba1\u7406\u3059\u308b\u30c1\u30fc\u30e0\u306b\u3068\u3063\u3066\u3001\u672c\u5f53\u306e\u554f\u984c\u306f\u300c\u77ed\u3044\u8a3c\u660e\u66f8\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u66f4\u65b0\u306e\u901f\u5ea6\u5411\u4e0a\u3001\u691c\u8a3c\u306e\u518d\u5229\u7528\u5236\u9650\u306e\u5f37\u5316\u3001\u305d\u3057\u3066\u904b\u7528\u30df\u30b9\u306e\u8a31\u5bb9\u7bc4\u56f2\u306e\u5927\u5e45\u306a\u7e2e\u5c0f<\/strong>\u3067\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u76e3\u8996\u3068\u30a2\u30e9\u30fc\u30c8\u306f\u5fc5\u8981\u4e0d\u53ef\u6b20\u306b\u306a\u308a\u307e\u3059\u3002<\/p> Let’s Encrypt\u306f\u73fe\u572890\u65e5\u9593\u6709\u52b9\u306a\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u3066\u304a\u308a\u30012028\u5e74\u307e\u3067\u306b\u3053\u308c\u309245\u65e5\u306b\u77ed\u7e2e\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u7a81\u7136\u306e\u300c\u30b9\u30a4\u30c3\u30c1\u5207\u308a\u66ff\u3048\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Let’s Encrypt\u306fACME\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/strong>\u3092\u4f7f\u3044\u6bb5\u968e\u7684\u306b\u5c55\u958b\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\tSSL\/TLS\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9593\u306b\u304a\u3051\u308b\u5909\u66f4\u70b9\u3068\u306f\uff1f<\/h2>
45\u65e5\u9593\u306e\u30dd\u30ea\u30b7\u30fc\uff08Let’s Encrypt\uff09<\/h3>