{"id":12362367,"date":"2026-03-11T19:40:12","date_gmt":"2026-03-11T11:40:12","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/ssl%e8%af%81%e4%b9%a6%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f%e7%b1%bb%e5%9e%8b%e3%80%81%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%e4%b8%8e%e9%83%a8%e7%bd%b2%e6%8c%87%e5%8d%97%e5%85%a8%e8%a7%a3%e6%9e%90\/"},"modified":"2026-03-11T20:10:46","modified_gmt":"2026-03-11T12:10:46","slug":"ssl-certificate-types-how-it-works-deployment-guide-e7-9f-a5-e8-af-86","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/ja\/knowledge\/ssl-certificate\/ssl-certificate-types-how-it-works-deployment-guide-e7-9f-a5-e8-af-86\/","title":{"rendered":"SSL\u8a3c\u660e\u66f8\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f\u305d\u306e\u7a2e\u985e\u3001\u52d5\u4f5c\u539f\u7406\u3001\u5c0e\u5165\u30ac\u30a4\u30c9\u3092\u5b8c\u5168\u306b\u89e3\u8aac\u3057\u307e\u3059"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u4eca\u65e5\u306e\u30c7\u30b8\u30bf\u30eb\u5316\u3055\u308c\u305f\u4e16\u754c\u306b\u304a\u3044\u3066\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u5358\u306a\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u306f\u306a\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4fe1\u983c\u3092\u7bc9\u304d\u3001\u30c7\u30fc\u30bf\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5b88\u308a\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306e\u57fa\u76e4\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u30ed\u30c3\u30af\u306e\u30a2\u30a4\u30b3\u30f3\u3084\u300chttps\u300d\u3068\u3044\u3046\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u306e\u63a5\u7d9a\u306e\u5b89\u5168\u6027\u3092\u88cf\u3067\u5b88\u3063\u3066\u3044\u308b\u306e\u304cSSL\/TLS\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u305d\u306e\u6838\u5fc3\u3068\u306a\u308b\u8a3c\u660e\u66f8\u3001\u3064\u307e\u308aSSL\u8a3c\u660e\u66f8\u3067\u3059\u3002SSL\u8a3c\u660e\u66f8\u306f\u6697\u53f7\u5316\u6280\u8853\u306e\u5a92\u4f53\u3067\u3042\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u8eab\u5143\u3092\u793a\u3059\u96fb\u5b50\u7684\u306a\u300c\u8eab\u5206\u8a3c\u660e\u66f8\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308a\u3001\u8a2a\u554f\u8005\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u901a\u4fe1\u304c\u76d7\u8074\u3084\u6539\u3056\u3093\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SSL\u8a3c\u660e\u66f8\u306e\u6838\u5fc3\u7684\u306a\u5b9a\u7fa9\u3068\u5f79\u5272<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u3001\u53b3\u5bc6\u306b\u8a00\u3048\u3070\u73fe\u5728\u3067\u306f\u305d\u306e\u5f8c\u7d99\u8005\u3067\u3042\u308bTLS\u8a3c\u660e\u66f8\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u308c\u306fSSL\/TLS\u30d7\u30ed\u30c8\u30b3\u30eb\u898f\u683c\u306b\u5f93\u3046\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3067\u3042\u308a\u3001\u4fe1\u983c\u3067\u304d\u308b\u8a3c\u660e\u6a5f\u95a2\u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff08\u4f8b\u3048\u3070\u30d6\u30e9\u30a6\u30b6\uff09\u3068\u30b5\u30fc\u30d0\u30fc\uff08\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\uff09\u306e\u9593\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a8d\u8a3c\u3068\u4fe1\u983c\u69cb\u7bc9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u306f\u8eab\u5143\u8a8d\u8a3c\u3067\u3059\u3002\u8a3c\u660e\u66f8\u306b\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u6240\u6709\u8005\u306b\u95a2\u3059\u308b\u60c5\u5831\uff08\u30c9\u30e1\u30a4\u30f3\u540d\u3001\u4f1a\u793e\u540d\u306a\u3069\uff09\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u306fCA\uff08\u8a8d\u8a3c\u6a5f\u95a2\uff09\u306b\u3088\u3063\u3066\u53b3\u683c\u306b\u691c\u8a3c\u3055\u308c\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u305d\u306e\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u6027\u3068\u767a\u884c\u8005\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u4fe1\u983c\u3067\u304d\u308bCA\u304b\u3089\u767a\u884c\u3055\u308c\u305f\u8a3c\u660e\u66f8\u306e\u307f\u306b\u3064\u3044\u3066\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ed\u30c3\u30af\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u8868\u793a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u5bfe\u3057\u3066\u300c\u691c\u8a3c\u6e08\u307f\u306e\u6b63\u5f53\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u901a\u4fe1\u3057\u3066\u3044\u308b\u3053\u3068\u300d\u3001\u3064\u307e\u308a\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u63a8\u85a6\u56f3\u66f8 <a href=\"https:\/\/www.likacloud.com\/de\/knowledge\/ssl-certificate\/ssl-certificate-guide-principles-types-installation-deployment\/\">SSL\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u89e3\u8aac\uff1a\u539f\u7406\u3001\u7a2e\u985e\u306e\u9078\u629e\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u5c0e\u5165\u306e\u5b8c\u5168\u306a\u30ac\u30a4\u30c9<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3068\u5b8c\u5168\u6027\u306e\u4fdd\u8b77<\/h3>\n\n\n\n<p 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AUTO_SYNCED_PATTERN_INSERT_START -->\n<div class=\"grid grid-cols-1 md:grid-cols-2 gap-4 md:gap-6 mb-8 md:mb-10 mt-10\"> \r\n\t<!-- \u91cd\u590d\u5668\u5faa\u73af\u5f00\u59cb -->\r\n\t\t\r\n\t<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/ja\/tolink\/bluehost-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251231095917.webp\" alt=\"\u30d6\u30eb\u30fc\u30db\u30b9\u30c8\u306eSSL\u8a3c\u660e\u66f8\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">\u30d6\u30eb\u30fc\u30db\u30b9\u30c8\u306eSSL\u8a3c\u660e\u66f8<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">\u30d6\u30eb\u30fc\u30db\u30b9\u30c8\u306eSSL\u8a3c\u660e\u66f8\u306f\u30011\uff5e2\u5e74\u306e\u5ef6\u9577\u671f\u9593\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001RSA\u307e\u305f\u306fECC\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001\u30ad\u30fc\u9577\u306f\u6700\u59274096\u30d3\u30c3\u30c8\u3067\u3001\u6700\u5927175\u4e07\u30c9\u30eb\u306e\u4fdd\u8a3c\u91d1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/span>\r\n\t\t\t\t<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">\u6708\u984d$7.49\u7c73\u30c9\u30eb\u304b\u3089<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.likacloud.com\/ja\/tolink\/bluehost-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">\u30d6\u30eb\u30fc\u30db\u30b9\u30c8\u306eSSL\u8a3c\u660e\u66f8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n\t<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/ja\/tolink\/hosting-com-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227070008.webp\" alt=\"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0.com\u306eSSL\u8a3c\u660e\u66f8\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">\u30db\u30b9\u30c6\u30a3\u30f3\u30b0.com\u306eSSL\u8a3c\u660e\u66f8<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">\u304a\u624b\u9803\u306a\u4fa1\u683c\u306e DV\u3001OV\u3001EV SSL \u8a3c\u660e\u66f8\u3002\u6700\u5927 256 \u30d3\u30c3\u30c8\u306e\u6697\u53f7\u5316\u300150 \u4e07\uff5e100 \u4e07\u7c73\u30c9\u30eb\u306e\u4fdd\u8a3c\u91d1\u3001\u5e74\u4e2d\u7121\u4f11\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/span>\r\n\t\t\t\t<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">\u6708\u984d$2.5\u7c73\u30c9\u30eb\u304b\u3089<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.likacloud.com\/ja\/tolink\/hosting-com-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">\u30db\u30b9\u30c6\u30a3\u30f3\u30b0.com\u306eSSL\u8a3c\u660e\u66f8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t<!-- \u91cd\u590d\u5668\u5faa\u73af\u7ed3\u675f -->\r\n<\/div>\r\n\r\n\r\n\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3b\u8981\u306aSSL\u8a3c\u660e\u66f8\u306e\u7a2e\u985e\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u8aac\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u8a3c\u30ec\u30d9\u30eb\u3068\u9069\u7528\u7bc4\u56f2\u306b\u57fa\u3065\u304d\u3001SSL\u8a3c\u660e\u66f8\u306f\u4e3b\u306b3\u3064\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u306b\u5206\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u4fe1\u983c\u6027\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c9\u30e1\u30a4\u30f3\u691c\u8a3c\u8a3c\u660e\u66f8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DV\u8a3c\u660e\u66f8\u306f\u691c\u8a3c\u30ec\u30d9\u30eb\u304c\u6700\u3082\u4f4e\u304f\u3001\u767a\u884c\u901f\u5ea6\u304c\u6700\u3082\u901f\u3044\u30bf\u30a4\u30d7\u3067\u3059\u3002CA\uff08\u8a8d\u8a3c\u6a5f\u95a2\uff09\u306f\u7533\u8acb\u8005\u304c\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u6240\u6709\u6a29\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u306e\u307f\u3092\u691c\u8a3c\u3057\u307e\u3059\uff08\u901a\u5e38\u306f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u78ba\u8a8d\u3084DNS\u30ec\u30b3\u30fc\u30c9\u306b\u3088\u308b\u691c\u8a3c\u3092\u901a\u3058\u3066\u884c\u308f\u308c\u307e\u3059\uff09\u3002\u3053\u306e\u8a3c\u660e\u66f8\u306f\u57fa\u672c\u7684\u306a\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u6a5f\u80fd\u306e\u307f\u3092\u63d0\u4f9b\u3057\u3001\u8a3c\u660e\u66f8\u60c5\u5831\u306b\u306f\u4f01\u696d\u540d\u304c\u542b\u307e\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u500b\u4eba\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3001\u30d6\u30ed\u30b0\u3001\u307e\u305f\u306f\u5185\u90e8\u30c6\u30b9\u30c8\u74b0\u5883\u306b\u975e\u5e38\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u30b3\u30b9\u30c8\u3082\u4f4e\u304f\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d44\u7e54\u691c\u8a3c\u8a3c\u660e\u66f8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OV\u8a3c\u660e\u66f8\u306f\u3088\u308a\u9ad8\u5ea6\u306a\u8a8d\u8a3c\u30ec\u30d9\u30eb\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u6240\u6709\u6a29\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001CA\uff08\u8a8d\u8a3c\u6a5f\u95a2\uff09\u306f\u7533\u8acb\u3057\u305f\u7d44\u7e54\u306e\u771f\u6b63\u6027\u3084\u5408\u6cd5\u6027\u3082\u691c\u8a3c\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4f01\u696d\u304c\u653f\u5e9c\u306b\u767b\u9332\u3057\u3066\u3044\u308b\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u306a\u3069\u3067\u3059\u3002\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u306b\u306f\u4f01\u696d\u540d\u304c\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u3001\u7279\u306b\u30d3\u30b8\u30cd\u30b9\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306e\u4fe1\u983c\u3092\u5927\u3044\u306b\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002OV\u8a3c\u660e\u66f8\u306f\u3001\u4f01\u696d\u306e\u516c\u5f0f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3084\u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u30b7\u30b9\u30c6\u30e0\u306b\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u62e1\u5f35\u691c\u8a3c\u8a3c\u660e\u66f8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">EV\u8a3c\u660e\u66f8\u306f\u6700\u3082\u9ad8\u3044\u30ec\u30d9\u30eb\u306e\u8a8d\u8a3c\u3068\u4fe1\u983c\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u7533\u8acb\u30d7\u30ed\u30bb\u30b9\u306f\u975e\u5e38\u306b\u53b3\u683c\u3067\u3042\u308a\u3001CA\uff08\u8a8d\u8a3c\u6a5f\u95a2\uff09\u306b\u3088\u308b\u7d44\u7e54\u306e\u80cc\u666f\u8abf\u67fb\u304c\u5fb9\u5e95\u7684\u306b\u884c\u308f\u308c\u307e\u3059\u3002EV\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3057\u305f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u4e3b\u6d41\u30d6\u30e9\u30a6\u30b6\u3067\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u4f1a\u793e\u540d\u3084\u30ed\u30c3\u30af\u306e\u30a2\u30a4\u30b3\u30f3\u304c\u7dd1\u8272\u3067\u8868\u793a\u3055\u308c\u3001\u3053\u308c\u306f\u76ee\u306b\u898b\u3048\u308b\u5f62\u3067\u306e\u6700\u9ad8\u30ec\u30d9\u30eb\u306e\u4fe1\u983c\u306e\u8a3c\u3067\u3059\u3002\u3053\u306e\u8a3c\u660e\u66f8\u306f\u3001\u91d1\u878d\u6a5f\u95a2\u3001\u5927\u624be\u30b3\u30de\u30fc\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3001\u653f\u5e9c\u6a5f\u95a2\u306a\u3069\u306b\u3088\u3063\u3066\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4fe1\u983c\u3092\u6700\u5927\u9650\u306b\u9ad8\u3081\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u63a8\u85a6\u56f3\u66f8 <a href=\"https:\/\/www.likacloud.com\/de\/knowledge\/ssl-certificate\/what-is-ssl-certificate-principle-deployment-secure-website-data-transmission\/\">SSL\u8a3c\u660e\u66f8\u3068\u306f\u4f55\u304b\uff1a\u539f\u7406\u304b\u3089\u5c0e\u5165\u307e\u3067\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u4f1d\u9001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b8c\u5168\u306b\u4fdd\u8a3c\u3059\u308b\u65b9\u6cd5<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">\u30ab\u30d0\u30fc\u7bc4\u56f2\u306b\u3088\u308b\u5206\u985e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u306f\u3001\u691c\u8a3c\u30ec\u30d9\u30eb\u3060\u3051\u3067\u306a\u304f\u3001\u30ab\u30d0\u30fc\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u6570\u306b\u3088\u3063\u3066\u3082\u5206\u985e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5358\u4e00\u30c9\u30e1\u30a4\u30f3\u540d\u8a3c\u660e\u66f8\u306f\u3001\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u4f8b\uff1awww.example.com\uff09\u306e\u307f\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u8a3c\u660e\u66f8\u306f\u3001\u30e1\u30a4\u30f3\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u305d\u306e\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u4f8b\uff1a*.example.com\uff09\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002\u4e00\u65b9\u3001\u30de\u30eb\u30c1\u30c9\u30e1\u30a4\u30f3\u540d\u8a3c\u660e\u66f8\u306f\u30011\u679a\u306e\u8a3c\u660e\u66f8\u3067\u8907\u6570\u306e\u7570\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u8907\u6570\u306e\u30d6\u30e9\u30f3\u30c9\u3084\u4e8b\u696d\u90e8\u9580\u3092\u6301\u3064\u4f01\u696d\u306b\u3068\u3063\u3066\u7ba1\u7406\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\\nSSL\/TLS\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\/TLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308a\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u304c\u5b9f\u969b\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30c7\u30fc\u30bf\u3092\u9001\u53d7\u4fe1\u3059\u308b\u524d\u306b\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u975e\u5e38\u306b\u5de7\u5999\u3067\u52b9\u7387\u7684\u306a\u300c\u79d8\u5bc6\u306e\u5408\u610f\u300d\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u63e1\u624b\u30d7\u30ed\u30bb\u30b9\u306e\u8a73\u7d30\u89e3\u8aac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cHTTPS\u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3092\u8a66\u307f\u308b\u3068\u304d\u3001\u307e\u305a\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b0\u30ea\u30fc\u30c6\u30a3\u30f3\u30b0\u300d\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308bTLS\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u6697\u53f7\u5316\u30b9\u30a4\u30fc\u30c8\u306e\u4e00\u89a7\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\n  <div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\n         data-link=\"https:\/\/www.likacloud.com\/ja\/tolink\/ultahost-ssl-certificates\/\">\n\n      <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\n        <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">UltaHost\u306eSSL\u8a3c\u660e\u66f8<\/strong>\n        <div class=\"text-gray-600 dark:text-gray-300 word-word\">DV\u3001EV\u3001OV\u8a3c\u660e\u66f8\u306f\u3001\u6700\u5927$1\u306e\u4fdd\u8a3c\u91d1\u984d\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001\u7121\u5236\u9650\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001iOS\u304a\u3088\u3073Android\u30a2\u30d7\u30ea\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u5178\u3068\u3057\u3066\u300120%\u306f\u6708\u984d$15.95\u7c73\u30c9\u30eb\u304b\u3089\u3067\u300130\u65e5\u9593\u306e\u8fd4\u91d1\u4fdd\u8a3c\u304c\u4ed8\u304d\u307e\u3059\u3002<\/div>\n      <\/div>\n\n      <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\n                  <a href=\"https:\/\/www.likacloud.com\/ja\/tolink\/ultahost-ssl-certificates\/\">\n                          <!-- \u767d\u5929 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227020448.webp\" alt=\"SSL\u8a3c\u660e\u66f8\u306e\u30ed\u30b4\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\n              <!-- \u591c\u95f4 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229052118.webp\" alt=\"SSL\u8a3c\u660e\u66f8\u306e\u30ed\u30b4\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\n                      <\/a>\n          \n        <a href=\"https:\/\/www.likacloud.com\/ja\/tolink\/ultahost-ssl-certificates\/\"\n           class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\n          UltaHost\u3092\u8a2a\u554f\u3059\u308b        <\/a>\n      <\/div>\n    <\/div>\n\n    \n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u30fc\u306f\u300c\u30b5\u30fc\u30d0\u30fc\u30b0\u30ea\u30fc\u30c6\u30a3\u30f3\u30b0\u300d\u3068\u5fdc\u7b54\u3057\u3001\u53cc\u65b9\u304c\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u9078\u629e\u3057\u305f\u4e0a\u3067\u3001\u81ea\u8eab\u306eSSL\u8a3c\u660e\u66f8\uff08\u516c\u958b\u9375\u3092\u542b\u3080\uff09\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30b5\u30fc\u30d0\u30fc\u306e\u8a3c\u660e\u66f8\u306e\u771f\u507d\u3092\u691c\u8a3c\u3057\u307e\u3059\uff08\u7f72\u540d\u3001\u6709\u52b9\u671f\u9650\u3001\u7121\u52b9\u5316\u72b6\u614b\u306e\u78ba\u8a8d\u306a\u3069\uff09\u3002\u691c\u8a3c\u306b\u5408\u683c\u3059\u308b\u3068\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30e9\u30f3\u30c0\u30e0\u306a\u300c\u30d7\u30ec\u30df\u30ca\u30ea\u30ad\u30fc\u300d\u3092\u751f\u6210\u3057\u3001\u305d\u306e\u30d7\u30ec\u30df\u30ca\u30ea\u30ad\u30fc\u3092\u30b5\u30fc\u30d0\u30fc\u8a3c\u660e\u66f8\u306b\u542b\u307e\u308c\u308b\u516c\u958b\u9375\u3067\u6697\u53f7\u5316\u3057\u305f\u5f8c\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u30fc\u306f\u81ea\u8eab\u306e\u79d8\u5bc6\u9375\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u5fa9\u53f7\u3057\u3001\u300c\u30d7\u30ec\u30df\u30ca\u30ea\u30ad\u30fc\u300d\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ec\u30df\u30ca\u30ea\u30ad\u30fc\u3068\u4ee5\u524d\u306b\u4ea4\u63db\u3057\u305f\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3092\u3082\u3068\u306b\u3001\u53cc\u65b9\u306f\u305d\u308c\u305e\u308c\u72ec\u7acb\u3057\u3066\u540c\u3058\u300c\u30e1\u30a4\u30f3\u30ad\u30fc\u300d\u3092\u8a08\u7b97\u3057\u3001\u305d\u306e\u30e1\u30a4\u30f3\u30ad\u30fc\u304b\u3089\u5f8c\u7d9a\u306e\u901a\u4fe1\u306b\u4f7f\u7528\u3059\u308b\u5bfe\u79f0\u6697\u53f7\u5316\u30ad\u30fc\u3092\u6d3e\u751f\u3055\u305b\u307e\u3059\u3002<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u63a8\u85a6\u56f3\u66f8 <a href=\"https:\/\/www.likacloud.com\/de\/knowledge\/ssl-certificate\/ssl-certificate-guide-types-application-installation-e7-9f-a5-e8-af-86\/\">SSL\u8a3c\u660e\u66f8\u306e\u5fb9\u5e95\u89e3\u8aac\uff1a\u305d\u306e\u5f79\u5272\u3001\u7a2e\u985e\u304b\u3089\u7533\u8acb\u30fb\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u307e\u3067\u306e\u5b8c\u5168\u30ac\u30a4\u30c9<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<p class=\"wp-block-paragraph\">\u4e21\u8005\u306f\u65b0\u3057\u3044\u9375\u3067\u6697\u53f7\u5316\u3055\u308c\u305f\u300c\u5b8c\u4e86\u300d\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4ea4\u63db\u3057\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u6210\u529f\u3057\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u3059\u3079\u3066\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u30c7\u30fc\u30bf\u306f\u52b9\u7387\u7684\u306a\u5bfe\u79f0\u6697\u53f7\u5316\u3092\u7528\u3044\u3066\u5b89\u5168\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3068\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30d7\u30ed\u30bb\u30b9\u306f\u30012\u3064\u306e\u6697\u53f7\u5316\u624b\u6cd5\u306e\u9577\u6240\u3092\u5de7\u307f\u306b\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002\u975e\u5bfe\u79f0\u6697\u53f7\u5316\uff08\u516c\u958b\u9375\/\u79d8\u5bc6\u9375\u30da\u30a2\uff09\u3092\u4f7f\u7528\u3057\u3066\u300c\u30d7\u30ea\u30de\u30b9\u30ad\u30fc\u300d\u3092\u5b89\u5168\u306b\u4ea4\u63db\u3059\u308b\u3053\u3068\u3067\u3001\u9375\u306e\u914d\u5e03\u3068\u3044\u3046\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u306e\u901a\u4fe1\u3067\u306f\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u3059\u308b\u969b\u306b\u901f\u5ea6\u304c\u901f\u304f\u3001\u8a08\u7b97\u30ea\u30bd\u30fc\u30b9\u306e\u6d88\u8cbb\u3082\u5c11\u306a\u3044\u304b\u3089\u3067\u3059\u3002\u3053\u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30e2\u30fc\u30c9\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9593\u3067\u6700\u9069\u306a\u30d0\u30e9\u30f3\u30b9\u304c\u5b9f\u73fe\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u6226\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u30ac\u30a4\u30c9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3057\u3001\u6b63\u3057\u304f\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u3053\u3068\u306f\u3001\u305d\u306e\u52b9\u679c\u3092\u5341\u5206\u306b\u767a\u63ee\u3055\u305b\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308b\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30c7\u30d7\u30ed\u30a4\u306e\u4e3b\u8981\u306a\u624b\u9806\u3068\u7d99\u7d9a\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u305f\u3081\u306e\u63a8\u5968\u4e8b\u9805\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a3c\u660e\u66f8\u306e\u7533\u8acb\u304a\u3088\u3073\u53d6\u5f97\u306e\u6d41\u308c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u3001\u30b5\u30fc\u30d0\u30fc\u3084\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e0a\u3067\u8a3c\u660e\u66f8\u7f72\u540d\u8981\u6c42\uff08Certificate Signing Request\uff09\u304a\u3088\u3073\u516c\u958b\u9375\u3068\u79d8\u5bc6\u9375\u306e\u30da\u30a2\u3092\u751f\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u79d8\u5bc6\u9375\u306f\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u7d76\u5bfe\u306b\u5b89\u5168\u306b\u4fdd\u7ba1\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u5f8c\u3001\u9078\u629e\u3057\u305fCA\uff08\u8a8d\u8a3c\u5c40\uff09\u306bCSR\uff08\u8a3c\u660e\u66f8\u7533\u8acb\u66f8\uff09\u3092\u63d0\u51fa\u3057\u307e\u3059\u3002CA\u306f\u3001\u7533\u8acb\u3057\u305f\u8a3c\u660e\u66f8\u306e\u7a2e\u985e\uff08DV\u3001OV\u3001EV\uff09\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30ec\u30d9\u30eb\u3067\u691c\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002\u691c\u8a3c\u306b\u5408\u683c\u3059\u308b\u3068\u3001CA\u306f\u8a3c\u660e\u66f8\u30d5\u30a1\u30a4\u30eb\u3092\u767a\u884c\u3057\u307e\u3059\uff08\u901a\u5e38\u3001\u8a3c\u660e\u66f8\u672c\u4f53\u3068\u5fc5\u8981\u306b\u5fdc\u3058\u305f\u4e2d\u9593\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3082\u542b\u307e\u308c\u307e\u3059\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001\u53d7\u3051\u53d6\u3063\u305f\u8a3c\u660e\u66f8\u30d5\u30a1\u30a4\u30eb\u3068\u4e2d\u9593\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3092Web\u30b5\u30fc\u30d0\u30fc\uff08Nginx\u3001Apache\u3001IIS\u306a\u3069\uff09\u306b\u30c7\u30d7\u30ed\u30a4\u3057\u3001\u4e8b\u524d\u306b\u751f\u6210\u3057\u305f\u79d8\u5bc6\u9375\u3068\u95a2\u9023\u4ed8\u3051\u3066\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3068\u6700\u9069\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d7\u30ed\u30a4\u3068\u306f\u5358\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3060\u3051\u306e\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3088\u308a\u9ad8\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u6700\u9069\u306a\u8a2d\u5b9a\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3067\u306fSSL\/TLS\u306e\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\uff08SSLv2\u3001SSLv3\u3001TLS 1.0\/1.1\u306a\u3069\uff09\u3092\u7121\u52b9\u306b\u3057\u3001TLS 1.2\u3084TLS 1.3\u3092\u512a\u5148\u7684\u306b\u4f7f\u7528\u3059\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b89\u5168\u306a\u6697\u53f7\u5316\u30b9\u30a4\u30fc\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u3001\u30d5\u30a9\u30ef\u30fc\u30c9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3059\u308b\u6697\u53f7\u5316\u30b9\u30a4\u30fc\u30c8\u3092\u512a\u5148\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u79d8\u5bc6\u9375\u304c\u5c06\u6765\u6f0f\u6d29\u3057\u3066\u3082\u3001\u904e\u53bb\u306b\u508d\u53d7\u3055\u308c\u305f\u901a\u4fe1\u8a18\u9332\u3092\u89e3\u8aad\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001HTTP Strict Transport Security\uff08HSTS\uff09\u30d8\u30c3\u30c0\u30fc\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u5e38\u306bHTTPS\u3092\u901a\u3058\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a3c\u660e\u66f8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u7ba1\u7406<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u306f\u6c38\u7d9a\u7684\u306b\u6709\u52b9\u306a\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u696d\u754c\u6a19\u6e96\u306b\u3088\u308a\u3001\u8a3c\u660e\u66f8\u306e\u6700\u5927\u6709\u52b9\u671f\u9650\u304c\u77ed\u7e2e\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u7d99\u7d9a\u7684\u306a\u76e3\u8996\u3068\u7ba1\u7406\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3092\u5fc5\u305a\u8a18\u9332\u3057\u3001\u671f\u9650\u304c\u5207\u308c\u308b1\u30f6\u6708\u524d\u306b\u306f\u66f4\u65b0\u304a\u3088\u3073\u4ea4\u63db\u3092\u884c\u3046\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u306e\u81ea\u52d5\u66f4\u65b0\uff08ACME\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u81ea\u52d5\u5316\u30c4\u30fc\u30eb\u306a\u3069\uff09\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u306f\u3001\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u5207\u308c\u306b\u3088\u308b\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b9\u969c\u5bb3\u3092\u9632\u3050\u6700\u5584\u306e\u65b9\u6cd5\u3067\u3059\u3002\u307e\u305f\u3001\u5bfe\u5fdc\u3059\u308b\u79d8\u5bc6\u9375\u304c\u6f0f\u6d29\u3057\u305f\u7591\u3044\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u76f4\u3061\u306bCA\uff08\u8a3c\u660e\u66f8\u767a\u884c\u6a5f\u95a2\uff09\u306b\u9023\u7d61\u3057\u3066\u8a3c\u660e\u66f8\u306e\u7121\u52b9\u5316\u3092\u4f9d\u983c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u8981<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL\u8a3c\u660e\u66f8\u306f\u3001\u5b89\u5168\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u57fa\u76e4\u6280\u8853\u3067\u3059\u3002\u5f37\u529b\u306a\u6697\u53f7\u5316\u306b\u3088\u308a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u6a5f\u5bc6\u6027\u3068\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u3001CA\uff08\u8a8d\u8a3c\u6a5f\u95a2\uff09\u306b\u3088\u308b\u8a8d\u8a3c\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u901a\u3058\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u4fe1\u983c\u6027\u3092\u88cf\u4ed8\u3051\u307e\u3059\u3002\u57fa\u672c\u7684\u306aDV\u8a3c\u660e\u66f8\u304b\u3089\u6700\u9ad8\u30ec\u30d9\u30eb\u306e\u4fe1\u983c\u6027\u3092\u793a\u3059EV\u8a3c\u660e\u66f8\u307e\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u8a3c\u660e\u66f8\u304c\u500b\u4eba\u304b\u3089\u5927\u4f01\u696d\u307e\u3067\u306e\u591a\u69d8\u306a\u30cb\u30fc\u30ba\u306b\u5fdc\u3048\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9069\u5207\u306bSSL\u8a3c\u660e\u66f8\u3092\u8a2d\u5b9a\u30fb\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u6b63\u3057\u3044\u30c7\u30d7\u30ed\u30a4\u65b9\u6cd5\u3084\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u5b88\u308b\u3053\u3068\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u6301\u7d9a\u7684\u306a\u6709\u52b9\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002\u4eca\u65e5\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8105\u5a01\u304c\u65e5\u3005\u8907\u96d1\u5316\u3059\u308b\u4e2d\u3067\u3001HTTPS\u306e\u6b63\u3057\u3044\u5b9f\u88c5\u306f\u4e0d\u53ef\u6b20\u306a\u57fa\u672c\u4f5c\u696d\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u53d6\u5f15\u6a5f\u80fd\u304c\u306a\u304f\u3066\u3082\u3001SSL\u8a3c\u660e\u66f8\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306f\u3044\u3001\u975e\u5e38\u306b\u5fc5\u8981\u3067\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u652f\u6255\u3044\u60c5\u5831\u3092\u51e6\u7406\u3057\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u9001\u4fe1\u3001\u500b\u4eba\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306b\u95a2\u3059\u308b\u95b2\u89a7\u5c65\u6b74\u306a\u3069\u306e\u6a5f\u5bc6\u30c7\u30fc\u30bf\u304c\u95a2\u4e0e\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002SSL\u8a3c\u660e\u66f8\u306b\u3088\u308a\u3001\u3053\u308c\u3089\u306e\u60c5\u5831\u304c\u76d7\u8074\u3055\u308c\u305f\u308a\u6539\u3056\u3093\u3055\u308c\u305f\u308a\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u73fe\u4ee3\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u306fHTTPS\u3092\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u300c\u5b89\u5168\u3067\u306a\u3044\u300d\u3068\u3057\u3066\u30de\u30fc\u30af\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4fe1\u983c\u3084\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u5c02\u9580\u6027\u306b\u5927\u304d\u306a\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3082HTTPS\u3092\u30e9\u30f3\u30ad\u30f3\u30b0\u306e\u8a55\u4fa1\u8981\u7d20\u3068\u3057\u3066\u8003\u616e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7121\u6599\u306eSSL\u8a3c\u660e\u66f8\u3068\u6709\u6599\u306eSSL\u8a3c\u660e\u66f8\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u514d\u8d39\u8bc1\u4e66\uff08\u5982Let\u2018s Encrypt\u9881\u53d1\u7684\uff09\u901a\u5e38\u662fDV\u8bc1\u4e66\uff0c\u63d0\u4f9b\u4e86\u4e0e\u4ed8\u8d39DV\u8bc1\u4e66\u76f8\u540c\u7684\u52a0\u5bc6\u5f3a\u5ea6\uff0c\u975e\u5e38\u9002\u5408\u4e2a\u4eba\u548c\u5c0f\u578b\u9879\u76ee\u3002\u4e3b\u8981\u533a\u522b\u5728\u4e8e\uff1a\u514d\u8d39\u8bc1\u4e66\u6709\u6548\u671f\u8f83\u77ed\uff08\u901a\u5e3890\u5929\uff09\uff0c\u9700\u8981\u66f4\u9891\u7e41\u5730\u81ea\u52a8\u7eed\u8ba2\uff1b\u4e00\u822c\u4e0d\u542b\u6280\u672f\u652f\u6301\u6216\u8d54\u4ed8\u4fdd\u969c\uff1b\u4e14\u65e0\u6cd5\u63d0\u4f9bOV\u6216EV\u7ea7\u522b\u7684\u7ec4\u7ec7\u8eab\u4efd\u9a8c\u8bc1\u3002\u4ed8\u8d39\u8bc1\u4e66\u5219\u63d0\u4f9b\u66f4\u957f\u7684\u6709\u6548\u671f\u3001\u6280\u672f\u652f\u6301\u3001\u8d44\u91d1\u4fdd\u969c\u4ee5\u53ca\u66f4\u9ad8\u7ea7\u522b\u7684\u9a8c\u8bc1\u670d\u52a1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SSL\u8a3c\u660e\u66f8\u306e\u5c0e\u5165\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u901f\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6697\u53f7\u5316\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u969b\u306eTLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u8ffd\u52a0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3084\u8a08\u7b97\u51e6\u7406\u304c\u5fc5\u8981\u306a\u305f\u3081\u308f\u305a\u304b\u306a\u9045\u5ef6\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u73fe\u4ee3\u306eTLS\u30d7\u30ed\u30c8\u30b3\u30eb\uff08\u7279\u306bTLS 1.3\uff09\u3067\u306f\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30d7\u30ed\u30bb\u30b9\u304c\u6700\u9069\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u9045\u5ef6\u304c\u5927\u5e45\u306b\u524a\u6e1b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u63a5\u7d9a\u304c\u78ba\u7acb\u3055\u308c\u305f\u5f8c\u306f\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u3059\u308b\u51e6\u7406\u306e\u901f\u5ea6\u3078\u306e\u5f71\u97ff\u306f\u307b\u3068\u3093\u3069\u306a\u304f\u3001\u901a\u5e38\u306f\u73fe\u4ee3\u306e\u30b5\u30fc\u30d0\u30fc\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u3088\u308b\u9ad8\u901f\u5316\u3067\u88dc\u308f\u308c\u307e\u3059\u3002\u7dcf\u5408\u7684\u306b\u898b\u308b\u3068\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u5229\u70b9\u306f\u7121\u8996\u3067\u304d\u308b\u307b\u3069\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30b3\u30b9\u30c8\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u5927\u304d\u304f\u3001HTTP\/2\u306a\u3069\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 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