{"id":29302,"date":"2026-09-28T15:14:56","date_gmt":"2026-09-28T06:14:56","guid":{"rendered":"https:\/\/motoki-design.co.jp\/wordpress\/domain-expiry-check\/"},"modified":"2026-10-01T17:55:57","modified_gmt":"2026-10-01T08:55:57","slug":"domain-expiry-check","status":"publish","type":"post","link":"https:\/\/motoki-design.co.jp\/wordpress\/domain-expiry-check\/","title":{"rendered":"\u30c9\u30e1\u30a4\u30f3\u3068SSL\u306e\u6709\u52b9\u671f\u9650\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\uff5c\u8907\u6570\u30b5\u30a4\u30c8\u3092\u307e\u3068\u3081\u3066\u68da\u5378\u3057\u3059\u308b\u624b\u9806"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u30c9\u30e1\u30a4\u30f3\u3068SSL\u8a3c\u660e\u66f8\u306b\u306f\u3001\u3069\u3061\u3089\u3082\u6709\u52b9\u671f\u9650\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u52d5\u66f4\u65b0\u306b\u3057\u3066\u3044\u308b\u3064\u3082\u308a\u3067\u3082\u3001\u30ab\u30fc\u30c9\u306e\u671f\u9650\u5207\u308c\u3084\u8a2d\u5b9a\u306e\u6f0f\u308c\u3067\u6b62\u307e\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30a4\u30c8\u3092\u4f55\u4ef6\u3082\u6301\u3063\u3066\u3044\u308b\u3068\u30011\u4ef6\u305a\u3064\u7ba1\u7406\u753b\u9762\u3067\u78ba\u304b\u3081\u308b\u306e\u306f\u624b\u9593\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u3092\u307e\u3068\u3081\u3066\u8abf\u3079\u308b\u30c4\u30fc\u30eb\u3068\u30011\u4ef6\u305a\u3064\u624b\u3067\u78ba\u304b\u3081\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u4f7f\u3046<a href=\"https:\/\/motoki-design.co.jp\/tools\/expiry-check\/\">\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d<\/a>\u306f\u3001\u5f53\u30b5\u30a4\u30c8\u3068\u540c\u3058MOTOKI\u5408\u540c\u4f1a\u793e\u304c\u4f5c\u3063\u305f\u300c<a href=\"https:\/\/motoki-design.co.jp\/tools\/tools-list\/\">WEB\u30c4\u30fc\u30eb\u7bb1<\/a>\u300d\u306e1\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7121\u6599\u3067\u3001\u4f1a\u54e1\u767b\u9332\u306a\u3057\u3067\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6700\u7d42\u78ba\u8a8d\u65e5\uff1a2026\u5e749\u670828\u65e5<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3053\u306e\u8a18\u4e8b\u3067\u5206\u304b\u308b\u3053\u3068<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c9\u30e1\u30a4\u30f3\u3068SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3092\u307e\u3068\u3081\u3066\u78ba\u8a8d\u3059\u308b\u624b\u9806<\/li>\n\n\n<li>\u7d50\u679c\u306e\u4e26\u3073\u9806\u3068\u3001\u6ce8\u610f\u306e\u76ee\u5b89<\/li>\n\n\n<li><strong>SSL\u8a3c\u660e\u66f8\u306e\u6b8b\u308a\u304c30\u65e5\u3092\u5207\u3063\u3066\u3044\u308b\u3068\u304d\u306b\u7591\u3046\u3053\u3068<\/strong><\/li>\n\n\n<li>WHOIS\u3084\u30d6\u30e9\u30a6\u30b6\u30fc\u30671\u4ef6\u305a\u3064\u78ba\u304b\u3081\u308b\u65b9\u6cd5<\/li>\n<\/ul>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">WEB\u30c4\u30fc\u30eb\u7bb1<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/motoki-design.co.jp\/tools\/wp-content\/uploads\/2026\/09\/ogp.png\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/motoki-design.co.jp\/tools\/expiry-check\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d\uff5c\u6700\u592710\u4ef6\u3092\u7121\u6599\u3067\u4e00\u62ec\u30c1\u30a7\u30c3\u30af<\/a>\n\t\t\t\t\t\t<span class=\"p-blogCard__excerpt\">\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u307e\u3068\u3081\u3066\u5165\u529b\u3059\u308b\u3068\u3001SSL\u8a3c\u660e\u66f8\u3068\u30c9\u30e1\u30a4\u30f3\u306e\u6709\u52b9\u671f\u9650\u3092\u4e00\u5ea6\u306b\u78ba\u8a8d\u3057\u3066\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u8868\u793a\u3057\u307e\u3059\u3002\u5236\u4f5c\u4f1a\u793e\u3084Web\u62c5\u5f53\u8005\u306e\u7ba1\u7406\u30b5\u30a4\u30c8\u68da\u5378\u3057\u306b\u3002\u6700\u592710\u4ef6\u3001\u4f1a&#8230;<\/span>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u7b54\u3048\uff5c1\u884c\u306b1\u3064\u305a\u3064\u5165\u308c\u308c\u3070\u3001\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u4e26\u3076<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c9\u30e1\u30a4\u30f3\u306e\u6709\u52b9\u671f\u9650\u306fWHOIS\u306e\u767b\u9332\u60c5\u5831\u306b\u3001SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u306f\u8a3c\u660e\u66f8\u305d\u306e\u3082\u306e\u306b\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c4\u30fc\u30eb\u306f\u3053\u306e2\u3064\u3092\u4e00\u5ea6\u306b\u8aad\u307f\u53d6\u308a\u3001\u3069\u3061\u3089\u304b\u8fd1\u3044\u307b\u3046\u306e\u671f\u9650\u3067\u4e26\u3079\u66ff\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5ea6\u306b\u8abf\u3079\u3089\u308c\u308b\u306e\u306f10\u4ef6\u307e\u3067\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c4\u30fc\u30eb\u3067\u8abf\u3079\u308b\u624b\u9806<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/motoki-design.co.jp\/tools\/expiry-check\/\">\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d<\/a>\u3092\u958b\u304f<\/li>\n\n\n<li>\u8abf\u3079\u305f\u3044\u30c9\u30e1\u30a4\u30f3\u30921\u884c\u306b1\u3064\u305a\u3064\u5165\u308c\u308b<\/li>\n\n\n<li>\u300c\u307e\u3068\u3081\u3066\u78ba\u8a8d\u3059\u308b\u300d\u3092\u62bc\u3059<\/li>\n\n\n<li>\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u3001SSL\u8a3c\u660e\u66f8\u3068\u30c9\u30e1\u30a4\u30f3\u306e\u6709\u52b9\u671f\u9650\u304c\u4e26\u3076<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u793e\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u3001\u30c4\u30fc\u30eb\u306e\u304a\u8a66\u3057\u306b\u8f09\u3063\u3066\u3044\u308b3\u4ef6\u3092\u307e\u3068\u3081\u3066\u8abf\u3079\u305f\u7d50\u679c\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"705\" height=\"924\" src=\"https:\/\/motoki-design.co.jp\/wordpress\/wp-content\/uploads\/expiry-check-result.png\" alt=\"\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d\u30674\u4ef6\u3092\u8abf\u3079\u305f\u7d50\u679c\" class=\"wp-image-29301\" srcset=\"https:\/\/motoki-design.co.jp\/wordpress\/wp-content\/uploads\/expiry-check-result.png 705w, https:\/\/motoki-design.co.jp\/wordpress\/wp-content\/uploads\/expiry-check-result-382x501.png 382w, https:\/\/motoki-design.co.jp\/wordpress\/wp-content\/uploads\/expiry-check-result-812x1065.png 704w\" sizes=\"(max-width: 705px) 100vw, 705px\" \/><figcaption class=\"wp-element-caption\">4\u4ef6\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u307e\u3068\u3081\u3066\u8abf\u3079\u305f\u7d50\u679c\u3002\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u4e26\u3076\uff082026\/09\/28\u6642\u70b9\u306e\u8868\u793a\uff09<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th style=\"min-width:8em !important\">\u30c9\u30e1\u30a4\u30f3<\/th><th>SSL\u8a3c\u660e\u66f8\u306e\u671f\u9650<\/th><th>\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650<\/th><\/tr><\/thead><tbody><tr><td>expired.badssl.com<\/td><td>2015\u5e744\u670813\u65e5\uff08\u671f\u9650\u5207\u308c\uff09<\/td><td>2027\u5e744\u67087\u65e5<\/td><\/tr><tr><td>motoki-design.co.jp<\/td><td>2026\u5e7411\u67088\u65e5\uff08\u6b8b\u308a40\u65e5\uff09<\/td><td>2027\u5e743\u670831\u65e5\uff08\u6b8b\u308a183\u65e5\uff09<\/td><\/tr><tr><td>github.com<\/td><td>2026\u5e7411\u670830\u65e5\uff08\u6b8b\u308a62\u65e5\uff09<\/td><td>2028\u5e7410\u67089\u65e5\uff08\u6b8b\u308a741\u65e5\uff09<\/td><\/tr><tr><td>wordpress.org<\/td><td>2026\u5e7412\u670823\u65e5\uff08\u6b8b\u308a85\u65e5\uff09<\/td><td>2035\u5e743\u670828\u65e5\uff08\u6b8b\u308a3,102\u65e5\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e749\u670828\u65e5\u6642\u70b9\u306e\u5024\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cexpired.badssl.com\u300d\u306f\u3001\u671f\u9650\u5207\u308c\u306e\u8a3c\u660e\u66f8\u3092\u78ba\u304b\u3081\u308b\u305f\u3081\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u691c\u8a3c\u7528\u306e\u30b5\u30a4\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u304c\u5207\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u6700\u4e0a\u6bb5\u306b\u300c1 \u4ef6\u304c\u671f\u9650\u5207\u308c\u3067\u3059\u300d\u3068\u51fa\u3066\u3001\u3044\u3061\u3070\u3093\u4e0a\u306b\u4e26\u3073\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">wordpress.org\u306f\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u304c8\u5e74\u4ee5\u4e0a\u5148\u3067\u3059\u304c\u3001\u8a3c\u660e\u66f8\u306f85\u65e5\u3067\u5207\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u3068\u8a3c\u660e\u66f8\u306e\u671f\u9650\u306f\u5225\u3005\u306b\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u4e21\u65b9\u3092\u898b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u679c\u306e\u8aad\u307f\u65b9\uff5c30\u65e5\u304c\u76ee\u5b89<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th style=\"min-width:8em !important\">\u6b8b\u308a\u65e5\u6570<\/th><th>\u7d50\u679c\u306e\u8868\u793a<\/th><th>\u3059\u308b\u3053\u3068<\/th><\/tr><\/thead><tbody><tr><td>31\u65e5\u4ee5\u4e0a<\/td><td>\u300c\u6b8b\u308a\u3007\u65e5\u300d\uff08\u7dd1\uff09<\/td><td>\u7279\u306b\u306a\u3057<\/td><\/tr><tr><td>30\u65e5\u4ee5\u5185<\/td><td>\u300c\u6b8b\u308a\u3007\u65e5\u300d\uff08\u30aa\u30ec\u30f3\u30b8\uff09<\/td><td>\u66f4\u65b0\u306e\u6e96\u5099\u3092\u9032\u3081\u308b\u3002\u81ea\u52d5\u66f4\u65b0\u306a\u3089\u3001\u6b62\u307e\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u304b\u3081\u308b<\/td><\/tr><tr><td>\u5207\u308c\u3066\u3044\u308b<\/td><td>\u300c\u671f\u9650\u5207\u308c\u300d\uff08\u8d64\uff09<\/td><td>\u3059\u3050\u306b\u66f4\u65b0\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c4\u30fc\u30eb\u306f\u3001\u6b8b\u308a\u304c30\u65e5\u4ee5\u5185\u306b\u306a\u308b\u3068\u5370\u306e\u8272\u3092\u5909\u3048\u3066\u77e5\u3089\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u4ef6\u3067\u308230\u65e5\u4ee5\u5185\u306e\u3082\u306e\u304c\u3042\u308c\u3070\u3001\u6700\u4e0a\u6bb5\u306b\u300c30\u65e5\u4ee5\u5185\u306b\u671f\u9650\u3092\u8fce\u3048\u307e\u3059\u300d\u3068\u3044\u3046\u4ef6\u6570\u304c\u51fa\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u306e\u5834\u5408\u3001\u6b8b\u308a30\u65e5\u3068\u3044\u3046\u6570\u5b57\u306b\u306f\u5225\u306e\u610f\u5473\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SSL\u8a3c\u660e\u66f8\u306e\u6b8b\u308a\u304c30\u65e5\u3092\u5207\u3063\u3066\u3044\u305f\u3089<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9593\u3068\u66f4\u65b0\u4e88\u5b9a\u65e5\u306f\u3001\u767a\u884c\u5143\u30fb\u8a3c\u660e\u66f8\u306e\u7a2e\u985e\u30fb\u66f4\u65b0\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u7570\u306a\u308a\u307e\u3059\u3002<a href=\"https:\/\/letsencrypt.org\/2026\/02\/24\/rate-limits-45-day-certs.html\">Let\u2019s Encrypt\u3082\u6709\u52b9\u671f\u9593\u306e\u77ed\u7e2e\u3092\u9032\u3081\u3066\u3044\u307e\u3059<\/a>\u3002\u6b8b\u308a30\u65e5\u306f\u3053\u306e\u30c4\u30fc\u30eb\u306e\u6ce8\u610f\u8868\u793a\u306e\u57fa\u6e96\u3067\u3001\u66f4\u65b0\u5931\u6557\u306e\u5224\u5b9a\u57fa\u6e96\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u753b\u9762\u3084ACME\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u3001\u6b21\u56de\u66f4\u65b0\u4e88\u5b9a\u30fb\u76f4\u8fd1\u306e\u6210\u529f\u65e5\u6642\u30fb\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e88\u5b9a\u3057\u305f\u66f4\u65b0\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u5834\u5408\u3084\u3001\u6b8b\u308a\u65e5\u6570\u304c\u6e1b\u308a\u7d9a\u3051\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u81ea\u52d5\u66f4\u65b0\u306e\u8a2d\u5b9a\u3068\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u8abf\u3079\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8003\u3048\u3089\u308c\u308b\u539f\u56e0\u306e\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c9\u30e1\u30a4\u30f3\u304c\u5225\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u5411\u3044\u3066\u3044\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u30c9\u30e1\u30a4\u30f3\u306e\u78ba\u8a8d\u304c\u3067\u304d\u306a\u3044<\/li>\n\n\n<li>\u30b5\u30fc\u30d0\u30fc\u306e\u7ba1\u7406\u753b\u9762\u3067\u3001\u7121\u6599SSL\u306e\u8a2d\u5b9a\u304c\u5916\u308c\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u52d5\u66f4\u65b0\u304c\u6b62\u307e\u3063\u3066\u3044\u3066\u3082\u3001\u5207\u308c\u308b\u307e\u3067\u8868\u793a\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6c17\u3065\u3044\u305f\u3068\u304d\u306b\u306f\u8a2a\u554f\u8005\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u5168\u753b\u9762\u306e\u8b66\u544a\u304c\u51fa\u3066\u3044\u305f\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5207\u308c\u3066\u3057\u307e\u3063\u305f\u3068\u304d\u306e\u76f4\u3057\u65b9\u306f\u3001<a href=\"https:\/\/motoki-design.co.jp\/media\/ssl-certificate-expired\/\">SSL\u8a3c\u660e\u66f8\u304c\u5207\u308c\u305f\u3068\u304d\u306e\u5bfe\u51e6\u6cd5<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c9\u30e1\u30a4\u30f3\u306e\u6709\u52b9\u671f\u9650\u304c\u5207\u308c\u308b\u3068<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c9\u30e1\u30a4\u30f3\u304c\u5207\u308c\u308b\u3068\u3001\u30b5\u30a4\u30c8\u3082\u30e1\u30fc\u30eb\u3082\u4e00\u6589\u306b\u6b62\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u304f\u306e\u7ba1\u7406\u4f1a\u793e\u3067\u306f\u671f\u9650\u5f8c\u306b\u3057\u3070\u3089\u304f\u7336\u4e88\u671f\u9593\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u9593\u3082\u30b5\u30a4\u30c8\u306f\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u653e\u7f6e\u3059\u308b\u3068\u7b2c\u4e09\u8005\u306b\u53d6\u5f97\u3055\u308c\u3001\u53d6\u308a\u623b\u305b\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u52d5\u66f4\u65b0\u306e\u8a2d\u5b9a\u306b\u52a0\u3048\u3066\u3001\u767b\u9332\u3057\u3066\u3044\u308b\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u306e\u6709\u52b9\u671f\u9650\u3082\u78ba\u304b\u3081\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u304c\u300c\u53d6\u5f97\u3067\u304d\u307e\u305b\u3093\u300d\u3068\u51fa\u308b\u3068\u304d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c9\u30e1\u30a4\u30f3\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u306f\u3001\u6709\u52b9\u671f\u9650\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">.co.jp\u306e\u3088\u3046\u306a\u5c5e\u6027\u578b\u306eJP\u30c9\u30e1\u30a4\u30f3\u306b\u306f\u660e\u793a\u7684\u306a\u6709\u52b9\u671f\u9650\u306e\u6b04\u304c\u306a\u304f\u3001\u30c4\u30fc\u30eb\u306f\u72b6\u614b\u306e\u6b04\u306e\u65e5\u4ed8\u304b\u3089\u8aad\u307f\u53d6\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d6\u5f97\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u7ba1\u7406\u4f1a\u793e\u306e\u7ba1\u7406\u753b\u9762\u3067\u78ba\u304b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ba1\u7406\u4f1a\u793e\u304c\u5206\u304b\u3089\u306a\u3044\u3068\u304d\u306f\u3001<a href=\"https:\/\/motoki-design.co.jp\/wordpress\/domain-registrar-check\/\">\u30c9\u30e1\u30a4\u30f3\u3092\u3069\u3053\u3067\u53d6\u5f97\u3057\u305f\u304b\u8abf\u3079\u308b\u65b9\u6cd5<\/a>\u3067\u63a2\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c4\u30fc\u30eb\u3092\u4f7f\u308f\u305a\u306b1\u4ef6\u305a\u3064\u78ba\u304b\u3081\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u306f\u3001WHOIS\u3067\u8abf\u3079\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">.com\u306a\u3069\u306fICANN Lookup\uff08lookup.icann.org\uff09\u3001.jp\u306fJPRS\u306eWHOIS\uff08whois.jprs.jp\uff09\u304c\u516c\u5f0f\u306e\u7a93\u53e3\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">.jp\u30c9\u30e1\u30a4\u30f3\u3067\u306f\u300c\u72b6\u614b\u300d\u306e\u6b04\u306e\u62ec\u5f27\u5185\u306e\u65e5\u4ed8\u304c\u6709\u52b9\u671f\u9650\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>[State]  Connected (2027\/03\/31)<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u306e\u671f\u9650\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u9375\u306e\u30de\u30fc\u30af\u304b\u3089\u78ba\u304b\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chrome\u306a\u3089\u3001\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306e\u5de6\u306e\u30de\u30fc\u30af\u3092\u62bc\u3057\u3001\u300c\u3053\u306e\u63a5\u7d9a\u306f\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u300d\u304b\u3089\u300c\u8a3c\u660e\u66f8\u306f\u6709\u52b9\u3067\u3059\u300d\u3092\u958b\u304f\u3068\u3001\u6709\u52b9\u671f\u9593\u304c\u51fa\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mac\u3084Linux\u306a\u3089\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3082\u8aad\u307f\u53d6\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>echo | openssl s_client \\\n  -connect example.com:443 \\\n  -servername example.com 2&gt;\/dev\/null \\\n  | openssl x509 -noout -enddate<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cnotAfter=\u300d\u306e\u5f8c\u308d\u304c\u3001\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u8abf\u3079\u305f\u30c9\u30e1\u30a4\u30f3\u306f\u4fdd\u5b58\u3055\u308c\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u5b58\u3082\u516c\u958b\u3082\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u306f\u5b9f\u969b\u306b\u30b5\u30fc\u30d0\u30fc\u3078\u63a5\u7d9a\u3057\u3066\u8aad\u307f\u53d6\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u306f\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u767b\u9332\u60c5\u5831\u304b\u3089\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. 10\u4ef6\u3092\u8d85\u3048\u308b\u30c9\u30e1\u30a4\u30f3\u3092\u8abf\u3079\u305f\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5ea6\u306b\u8abf\u3079\u3089\u308c\u308b\u306e\u306f10\u4ef6\u307e\u3067\u306a\u306e\u3067\u300110\u4ef6\u305a\u3064\u306b\u5206\u3051\u3066\u5165\u308c\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">10\u4ef6\u3060\u3068\u3001\u78ba\u8a8d\u306b20\u79d2\u304b\u308940\u79d2\u307b\u3069\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u3069\u306e\u304f\u3089\u3044\u306e\u9593\u9694\u3067\u78ba\u304b\u3081\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u52d5\u76e3\u8996\u306e\u901a\u77e5\u3092\u57fa\u672c\u306b\u3057\u3001\u624b\u52d5\u70b9\u691c\u3067\u306f\u8a3c\u660e\u66f8\u306e\u5b9f\u969b\u306e\u6709\u52b9\u671f\u9593\u3068\u66f4\u65b0\u4e88\u5b9a\u306b\u5408\u308f\u305b\u3066\u9593\u9694\u3092\u6c7a\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u65b0\u5931\u6557\u306e\u901a\u77e5\u304c\u51fa\u305f\u3068\u304d\u306f\u6b21\u306e\u5b9a\u671f\u70b9\u691c\u3092\u5f85\u305f\u305a\u3001\u539f\u56e0\u3068\u518d\u8a66\u884c\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u67081\u56de\u306e\u76ee\u8996\u3060\u3051\u3067\u306f\u77ed\u671f\u8a3c\u660e\u66f8\u306e\u5931\u52b9\u3092\u898b\u9003\u3059\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c9\u30e1\u30a4\u30f3\u3068SSL\u8a3c\u660e\u66f8\u306e\u671f\u9650\u306f<a href=\"https:\/\/motoki-design.co.jp\/tools\/expiry-check\/\">\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d<\/a>\u3067\u6700\u592710\u4ef6\u307e\u3068\u3081\u3066\u78ba\u304b\u3081\u3089\u308c\u308b<\/li>\n\n\n<li>\u7d50\u679c\u306f\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u4e26\u3073\u300130\u65e5\u4ee5\u5185\u306f\u5370\u306e\u8272\u304c\u5909\u308f\u308a\u3001\u5207\u308c\u305f\u3082\u306e\u306f\u300c\u671f\u9650\u5207\u308c\u300d\u3068\u51fa\u308b<\/li>\n\n\n<li><strong>\u30c9\u30e1\u30a4\u30f3\u3068\u8a3c\u660e\u66f8\u306e\u671f\u9650\u306f\u5225\u3005\u306a\u306e\u3067\u3001\u4e21\u65b9\u3092\u898b\u308b<\/strong><\/li>\n\n\n<li>\u6b8b\u308a\u65e5\u6570\u3060\u3051\u3067\u66f4\u65b0\u5931\u6557\u3068\u5224\u65ad\u305b\u305a\u3001\u66f4\u65b0\u4e88\u5b9a\u30fb\u6210\u529f\u65e5\u6642\u30fb\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n<li>.jp\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u306f\u3001WHOIS\u306e\u72b6\u614b\u306e\u6b04\u306e\u65e5\u4ed8\u3067\u5206\u304b\u308b<\/li>\n<\/ul>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">WEB\u30c4\u30fc\u30eb\u7bb1<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/motoki-design.co.jp\/tools\/wp-content\/uploads\/2026\/09\/ogp.png\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/motoki-design.co.jp\/tools\/expiry-check\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c9\u30e1\u30a4\u30f3\u30fbSSL\u671f\u9650\u307e\u3068\u3081\u3066\u78ba\u8a8d\uff5c\u6700\u592710\u4ef6\u3092\u7121\u6599\u3067\u4e00\u62ec\u30c1\u30a7\u30c3\u30af<\/a>\n\t\t\t\t\t\t<span class=\"p-blogCard__excerpt\">\u8907\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u307e\u3068\u3081\u3066\u5165\u529b\u3059\u308b\u3068\u3001SSL\u8a3c\u660e\u66f8\u3068\u30c9\u30e1\u30a4\u30f3\u306e\u6709\u52b9\u671f\u9650\u3092\u4e00\u5ea6\u306b\u78ba\u8a8d\u3057\u3066\u671f\u9650\u304c\u8fd1\u3044\u9806\u306b\u8868\u793a\u3057\u307e\u3059\u3002\u5236\u4f5c\u4f1a\u793e\u3084Web\u62c5\u5f53\u8005\u306e\u7ba1\u7406\u30b5\u30a4\u30c8\u68da\u5378\u3057\u306b\u3002\u6700\u592710\u4ef6\u3001\u4f1a&#8230;<\/span>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u306e\u767a\u884c\u5143\u3084\u4e2d\u9593\u8a3c\u660e\u66f8\u307e\u3067\u8a73\u3057\u304f\u898b\u308b\u306a\u3089\u3001\u300c<a 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