{"id":12416,"date":"2025-11-18T10:30:43","date_gmt":"2025-11-18T01:30:43","guid":{"rendered":"https:\/\/rakkoserver.com\/plus\/?p=11656"},"modified":"2025-11-18T10:30:43","modified_gmt":"2025-11-18T01:30:43","slug":"tool-dns-ttl-checker","status":"publish","type":"post","link":"https:\/\/rakkokeyword.com\/techo\/tool-dns-ttl-checker\/","title":{"rendered":"TTL\u78ba\u8a8d\u30c4\u30fc\u30eb"},"content":{"rendered":"\n<div id=\"dns-ttl-tool\">\n  <style>\n    #dns-ttl-tool {\n      border: none;\n      padding: 0;\n      margin: 0;\n      font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;\n      color: #111;\n    }\n\n    #dns-ttl-tool * {\n      box-sizing: border-box;\n    }\n\n    #dns-ttl-tool .ttl-container-inner {\n      max-width: 700px;\n    }\n\n    #dns-ttl-tool p.ttl-title {\n      font-size: 20px;\n      font-weight: 600;\n      margin: 0 0 12px 0;\n    }\n\n    #dns-ttl-tool p.ttl-description {\n      font-size: 13px;\n      color: #555;\n      margin: 0 0 16px 0;\n      line-height: 1.5;\n    }\n\n    #dns-ttl-tool .ttl-form-row {\n      display: flex;\n      flex-direction: column;\n      margin-bottom: 12px;\n    }\n\n    #dns-ttl-tool .ttl-label {\n      font-size: 13px;\n      margin-bottom: 4px;\n    }\n\n    #dns-ttl-tool .ttl-label span.ttl-required {\n      color: #c00;\n      font-size: 11px;\n      margin-left: 4px;\n    }\n\n    #dns-ttl-tool input[type=\"text\"],\n    #dns-ttl-tool select {\n      width: 100%;\n      font-size: 14px;\n      padding: 8px 10px;\n      border-radius: 4px;\n      border: 1px solid #ccc;\n      outline: none;\n      background-color: #fff;\n    }\n\n    #dns-ttl-tool input[type=\"text\"]:focus,\n    #dns-ttl-tool select:focus {\n      border-color: #007cba;\n      box-shadow: 0 0 0 1px #007cba1a;\n    }\n\n    #dns-ttl-tool .ttl-input-hint {\n      font-size: 11px;\n      color: #777;\n      margin-top: 3px;\n    }\n\n    #dns-ttl-tool .ttl-inline-row {\n      display: flex;\n      gap: 8px;\n      flex-wrap: wrap;\n    }\n\n    #dns-ttl-tool .ttl-inline-row > div {\n      flex: 1 1 180px;\n    }\n\n    #dns-ttl-tool .ttl-actions {\n      margin-top: 8px;\n      display: flex;\n      align-items: center;\n      gap: 8px;\n    }\n\n    #dns-ttl-tool button.ttl-submit {\n      appearance: none;\n      border: none;\n      cursor: pointer;\n      font-size: 14px;\n      font-weight: 500;\n      padding: 8px 18px;\n      border-radius: 4px;\n      background-color: #007cba;\n      color: #fff;\n      white-space: nowrap;\n    }\n\n    #dns-ttl-tool button.ttl-submit:disabled {\n      opacity: 0.6;\n      cursor: default;\n    }\n\n    #dns-ttl-tool .ttl-loading {\n      font-size: 13px;\n      color: #555;\n    }\n\n    #dns-ttl-tool .ttl-message {\n      margin-top: 10px;\n      font-size: 13px;\n      line-height: 1.6;\n    }\n\n    #dns-ttl-tool .ttl-message-error {\n      color: #b00020;\n    }\n\n    #dns-ttl-tool .ttl-message-success {\n      color: #111;\n    }\n\n    #dns-ttl-tool .ttl-result {\n      margin-top: 16px;\n      border-radius: 6px;\n      background-color: #fafafa;\n      padding: 12px 12px 10px 12px;\n    }\n\n    #dns-ttl-tool .ttl-result-header {\n      margin-bottom: 8px;\n    }\n\n    #dns-ttl-tool .ttl-result-summary {\n      font-size: 15px;\n      font-weight: 600;\n      margin: 0 0 6px 0;\n    }\n\n    #dns-ttl-tool .ttl-result-meta {\n      font-size: 12px;\n      color: #555;\n      margin: 0 0 4px 0;\n    }\n\n    #dns-ttl-tool .ttl-result-count {\n      font-size: 13px;\n      font-weight: 500;\n      margin: 4px 0 8px 0;\n    }\n\n    \/* CTA\u30e9\u30c3\u30d1\u30fc *\/\n    #dns-ttl-tool .ttl-cta-wrapper {\n      display: none !important;\n      margin-left: 8px !important;\n      vertical-align: middle !important;\n    }\n\n    #dns-ttl-tool .ttl-cta-wrapper.ttl-cta-wrapper--show {\n      display: inline-block !important;\n    }\n\n    \/* CTA\u30e9\u30d9\u30eb\uff08\u30aa\u30ec\u30f3\u30b8\u30fb\u30dc\u30bf\u30f3\u5185\u306e\u5de6\u5074\uff09 *\/\n    #dns-ttl-tool .ttl-cta-label {\n      display: inline-block !important;\n      padding: 1px 4px !important;\n      background: #ff6b35 !important;\n      color: #fff !important;\n      font-size: 9px !important;\n      font-weight: 600 !important;\n      border-radius: 2px !important;\n      white-space: nowrap !important;\n      margin-right: 6px !important;\n      vertical-align: middle !important;\n    }\n\n    \/* CTA\u30dc\u30bf\u30f3\uff08\u5c0f\u3055\u3081\u30fb\u30a4\u30f3\u30e9\u30a4\u30f3\u30fb\u9ed2\uff09 *\/\n    #dns-ttl-tool .ttl-cta-btn {\n      display: inline-block !important;\n      padding: 4px 10px !important;\n      background: #333 !important;\n      color: #fff !important;\n      font-size: 11px !important;\n      font-weight: 500 !important;\n      text-decoration: none !important;\n      border-radius: 3px !important;\n      white-space: nowrap !important;\n      transition: all 0.2s ease !important;\n    }\n\n    #dns-ttl-tool .ttl-cta-btn:hover {\n      background: #555 !important;\n    }\n\n    #dns-ttl-tool .ttl-cta-domain {\n      font-weight: 700 !important;\n    }\n\n    #dns-ttl-tool .ttl-section-title {\n      font-size: 13px;\n      font-weight: 600;\n      margin: 10px 0 4px 0;\n    }\n\n    #dns-ttl-tool .ttl-table {\n      width: 100%;\n      border-collapse: collapse;\n      font-size: 12px;\n    }\n\n    #dns-ttl-tool .ttl-table th,\n    #dns-ttl-tool .ttl-table td {\n      text-align: left;\n      padding: 4px 4px;\n      border-bottom: 1px solid #e0e0e0;\n      vertical-align: top;\n    }\n\n    #dns-ttl-tool .ttl-table th {\n      font-weight: 600;\n      color: #333;\n    }\n\n    #dns-ttl-tool .ttl-muted {\n      color: #666;\n      font-size: 12px;\n      margin-top: 6px;\n    }\n\n    @media (max-width: 480px) {\n      #dns-ttl-tool .ttl-container-inner {\n        max-width: 100%;\n      }\n\n      #dns-ttl-tool button.ttl-submit {\n        width: 100%;\n        text-align: center;\n        justify-content: center;\n      }\n\n      #dns-ttl-tool .ttl-actions {\n        flex-direction: column;\n        align-items: flex-start;\n      }\n\n      #dns-ttl-tool .ttl-inline-row {\n        flex-direction: column;\n      }\n\n      \/* CTA\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc *\/\n      #dns-ttl-tool .ttl-cta-wrapper {\n        display: block !important;\n        margin-left: 0 !important;\n        margin-top: 6px !important;\n      }\n\n      #dns-ttl-tool .ttl-cta-wrapper.ttl-cta-wrapper--show {\n        display: block !important;\n      }\n\n      #dns-ttl-tool .ttl-cta-btn {\n        white-space: normal !important;\n        max-width: 100% !important;\n        word-break: break-word !important;\n        display: inline-block !important;\n      }\n\n      #dns-ttl-tool .ttl-cta-label {\n        display: inline-block !important;\n      }\n    }\n  <\/style>\n\n  <div class=\"ttl-container-inner\">\n    <p class=\"ttl-description\">\n      \u30c9\u30e1\u30a4\u30f3\u540d\u30fb\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u30fbDNS\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3057\u3066\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306eTTL\u5024\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br>\n      TTL\u3092\u79d2\u6570\u3068\u3001\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u5f62\u5f0f(\u4f8b:3600\u79d2 = 1\u6642\u9593)\u3067\u8868\u793a\u3057\u307e\u3059\u3002\n    <\/p>\n\n    <form id=\"dns-ttl-form\" autocomplete=\"off\">\n      <div class=\"ttl-form-row\">\n        <label class=\"ttl-label\" for=\"ttl-domain\">\n          \u30c9\u30e1\u30a4\u30f3\u540d\n          <span class=\"ttl-required\">\u5fc5\u9808<\/span>\n        <\/label>\n        <input id=\"ttl-domain\" type=\"text\" inputmode=\"url\" placeholder=\"\u4f8b)example.com\" required>\n        <p class=\"ttl-input-hint\">\n          \u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3082\u6307\u5b9a\u53ef\u80fd\u3067\u3059(\u4f8b:www.example.com)\u3002\u30d7\u30ed\u30c8\u30b3\u30eb(https:\/\/ \u7b49)\u306f\u4e0d\u8981\u3067\u3059\u3002\n        <\/p>\n      <\/div>\n\n      <div class=\"ttl-inline-row\">\n        <div class=\"ttl-form-row\">\n          <label class=\"ttl-label\" for=\"ttl-type\">\n            \u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\n          <\/label>\n          <select id=\"ttl-type\">\n            <option value=\"A\" selected>A<\/option>\n            <option value=\"AAAA\">AAAA<\/option>\n            <option value=\"CNAME\">CNAME<\/option>\n            <option value=\"MX\">MX<\/option>\n            <option value=\"TXT\">TXT<\/option>\n            <option value=\"NS\">NS<\/option>\n            <option value=\"SRV\">SRV<\/option>\n            <option value=\"CAA\">CAA<\/option>\n            <option value=\"SOA\">SOA<\/option>\n          <\/select>\n          <p class=\"ttl-input-hint\">\n            A \/ AAAA \/ CNAME \/ MX \/ TXT \/ NS \u306a\u3069\u3001\u78ba\u8a8d\u3057\u305f\u3044\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n          <\/p>\n        <\/div>\n\n        <div class=\"ttl-form-row\">\n          <label class=\"ttl-label\" for=\"ttl-dns-server\">\n            DNS\u30b5\u30fc\u30d0\u30fc\n          <\/label>\n          <input id=\"ttl-dns-server\" type=\"text\" inputmode=\"numeric\" placeholder=\"8.8.8.8\" value=\"8.8.8.8\">\n          <p class=\"ttl-input-hint\">\n            IPv4\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\u3067\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044(\u4f8b:8.8.8.8 \/ 1.1.1.1)\u3002\u672a\u5165\u529b\u306e\u5834\u5408\u306f\u300c8.8.8.8\u300d\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\n          <\/p>\n        <\/div>\n      <\/div>\n\n      <div class=\"ttl-actions\">\n        <button type=\"submit\" class=\"ttl-submit\" id=\"ttl-submit-btn\">\n          \u78ba\u8a8d\u3059\u308b\n        <\/button>\n        <p class=\"ttl-loading\" id=\"ttl-loading\" style=\"display:none;\">\n          \u691c\u7d22\u4e2d\u3067\u3059\u2026\n        <\/p>\n      <\/div>\n\n      <p class=\"ttl-message\" id=\"ttl-message\" aria-live=\"polite\"><\/p>\n    <\/form>\n\n    <div class=\"ttl-result\" id=\"ttl-result\" style=\"display:none;\" aria-live=\"polite\">\n      <div class=\"ttl-result-header\">\n        <p class=\"ttl-result-summary\" id=\"ttl-result-summary\"><\/p>\n        <p class=\"ttl-result-meta\" id=\"ttl-result-domain\">\n          <!-- CTA\u30dc\u30bf\u30f3\u306fJavaScript\u3067\u52d5\u7684\u306b\u8ffd\u52a0 -->\n        <\/p>\n        <p class=\"ttl-result-meta\" id=\"ttl-result-type\"><\/p>\n        <p class=\"ttl-result-meta\" id=\"ttl-result-dns\"><\/p>\n        <p class=\"ttl-result-count\" id=\"ttl-result-count\"><\/p>\n      <\/div>\n\n      <p class=\"ttl-section-title\">\u30ec\u30b3\u30fc\u30c9\u3068TTL<\/p>\n      <table class=\"ttl-table\">\n        <thead>\n          <tr>\n            <th>\u30ec\u30b3\u30fc\u30c9\u306e\u5185\u5bb9<\/th>\n            <th>TTL(\u79d2)<\/th>\n            <th>TTL(\u5225\u306e\u5358\u4f4d)<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody id=\"ttl-records-body\"><\/tbody>\n      <\/table>\n\n      <p class=\"ttl-muted\" id=\"ttl-note\"><\/p>\n    <\/div>\n  <\/div>\n\n  <script>\n\n  <\/script>\n<\/div>\n\n\n\n<!-- \u5171\u901aCSS\uff081\u56de\u3060\u3051\u8aad\u307f\u8fbc\u3081\u3070OK\uff09 -->\n<style>\n  .rs-related-tools {\n    background: transparent;\n    color: #000;\n    padding: 10px 0;\n    font-size: 14px;\n    line-height: 1.6;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px 12px;\n    align-items: center;\n    margin: 16px 0;\n  }\n  .rs-related-tools__label {\n    border: 1px solid #000;\n    padding: 2px 6px;\n    border-radius: 4px;\n    font-weight: 600;\n    white-space: nowrap;\n  }\n  .rs-related-tools a {\n    color: #0066cc; \/* \u6a19\u6e96\u30ea\u30f3\u30af\u8272 *\/\n    text-decoration: none;\n    white-space: nowrap;\n  }\n  .rs-related-tools a:hover,\n  .rs-related-tools a:focus {\n    text-decoration: underline;\n  }\n<\/style>\n<div class=\"rs-related-tools\">\n  <span class=\"rs-related-tools__label\">\u95a2\u9023\u30c4\u30fc\u30eb<\/span>\n  <a href=\"https:\/\/rakkokeyword.com\/techo\/tool-nslookup-dig\/\">nslookup \/ dig<\/a>\n  <a href=\"https:\/\/rakkokeyword.com\/techo\/tool-soa-record-checker\/\">SOA<\/a>\n  <a href=\"https:\/\/rakkokeyword.com\/techo\/tool-ns-checker\/\">NS<\/a>\n  <a href=\"https:\/\/rakkokeyword.com\/techo\/tool-a-record-check\/\">A<\/a>\n  <a href=\"https:\/\/rakkokeyword.com\/techo\/tool-dns-propagation-checker\/\">\u4f1d\u642c\u78ba\u8a8d<\/a>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u300cDNS TTL\u78ba\u8a8d\u30c4\u30fc\u30eb\u300d\u306f\u3001\u6307\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u540d\u306eDNS\u30ec\u30b3\u30fc\u30c9\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308bTTL\uff08Time To Live\uff09\u3092\u3001Web\u30d6\u30e9\u30a6\u30b6\u4e0a\u304b\u3089\u7c21\u5358\u306b\u78ba\u8a8d\u3067\u304d\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u5e38\u3001TTL\u306e\u78ba\u8a8d\u306f<code>nslookup<\/code>\u3084<code>dig<\/code>\u3068\u3044\u3063\u305f\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u64cd\u4f5c\u304c\u5fc5\u8981\u3067\u3059\u304c\u3001\u3053\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u3048\u3070\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3084\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u3092\u5165\u529b\u3057\u3066\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3060\u3051\u3067\u3001\u8ab0\u3067\u3082\u5373\u5ea7\u306bTTL\u306e\u5024\uff08\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9593\uff09\u3092\u79d2\u5358\u4f4d\u3068\u5206\/\u6642\u9593\u5358\u4f4d\u3067\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-0\">TTL\u78ba\u8a8d\u30c4\u30fc\u30eb\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u3044\u65b9\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u4ee5\u4e0b\u306e3\u30b9\u30c6\u30c3\u30d7\u3067TTL\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u5fc5\u9808\uff09:<\/strong> TTL\u3092\u8abf\u67fb\u3057\u305f\u3044\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u4f8b: <code>example.com<\/code>\uff09\u3092\u5165\u529b\u3057\u307e\u3059\u3002\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff08\u4f8b: <code>www.example.com<\/code>\uff09\u306e\u6307\u5b9a\u3082\u53ef\u80fd\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\uff08\u9078\u629e\uff09:<\/strong> \u8abf\u67fb\u3057\u305f\u3044DNS\u30ec\u30b3\u30fc\u30c9\u306e\u7a2e\u985e\u3092\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u304b\u3089\u9078\u629e\u3057\u307e\u3059\u3002\uff08A, AAAA, CNAME, MX, TXT, NS\u306a\u3069\uff09<\/li>\n\n\n\n<li><strong>DNS\u30b5\u30fc\u30d0\u30fc\uff08\u4efb\u610f\uff09:<\/strong> \u7279\u5b9a\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u554f\u3044\u5408\u308f\u305b\u305f\u3044\u5834\u5408\u3001\u305d\u306e\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u4f8b: <code>1.1.1.1<\/code>\uff09\u3092\u5165\u529b\u3057\u307e\u3059\u3002<strong>\u7a7a\u6b04\u306e\u5834\u5408\u306f\u3001Google\u304c\u63d0\u4f9b\u3059\u308b\u30d1\u30d6\u30ea\u30c3\u30afDNS\uff08<code>8.8.8.8<\/code>\uff09\u3092\u4f7f\u7528\u3057\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/strong><\/li>\n\n\n\n<li><strong>\u78ba\u8a8d\u5b9f\u884c:<\/strong> \u300c\u78ba\u8a8d\u3059\u308b\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u7d50\u679c\u306e\u8868\u793a:<\/strong> \u5165\u529b\u6b04\u306e\u4e0b\u306b\u300cDNS\u30ec\u30b3\u30fc\u30c9\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u300d\u3068\u8868\u793a\u3055\u308c\u3001\u4ee5\u4e0b\u306e\u60c5\u5831\u304c\u30c6\u30fc\u30d6\u30eb\u5f62\u5f0f\u3067\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\n<ul class=\"wp-block-list\">\n<li><strong>\u30ec\u30b3\u30fc\u30c9\u306e\u5185\u5bb9:<\/strong> IP\u30a2\u30c9\u30ec\u30b9\u3084\u30db\u30b9\u30c8\u540d\u306a\u3069\u3001\u5b9f\u969b\u306e\u30ec\u30b3\u30fc\u30c9\u60c5\u5831\u3002<\/li>\n\n\n\n<li><strong>TTL (\u79d2):<\/strong> DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9593\uff08\u79d2\u5358\u4f4d\uff09\u3002<\/li>\n\n\n\n<li><strong>TTL (\u5225\u306e\u5358\u4f4d):<\/strong> \u79d2\u5358\u4f4d\u306eTTL\u3092\u3001\u5206\u3084\u6642\u9593\u306a\u3069\u3001\u3088\u308a\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u5358\u4f4d\u306b\u63db\u7b97\u3057\u305f\u5024\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-1\">DNS\u3068TTL\u306b\u95a2\u3059\u308b\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">TTL (Time To Live) \u3068\u306f\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">TTL\u306f\u300cTime To Live\u300d\u306e\u7565\u3067\u3001\u65e5\u672c\u8a9e\u3067\u306f\u300c\u751f\u5b58\u671f\u9593\u300d\u3068\u8a33\u3055\u308c\u307e\u3059\u3002DNS\u306e\u6587\u8108\u306b\u304a\u3051\u308bTTL\u3068\u306f\u3001\u300cDNS\u30b5\u30fc\u30d0\u30fc\u304c\u4e00\u5ea6\u53d6\u5f97\u3057\u305f\u30ec\u30b3\u30fc\u30c9\u60c5\u5831\u3092\u3001\u3069\u308c\u304f\u3089\u3044\u306e\u671f\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\uff08\u4e00\u6642\u4fdd\u5b58\uff09\u3057\u3066\u304a\u304f\u304b\u300d\u3092\u5b9a\u3081\u305f\u6642\u9593\uff08\u79d2\u5358\u4f4d\uff09\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u3001<code>example.com<\/code>\u306eTTL\u304c\u300c300\u79d2\u300d\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306f\u4e00\u5ea6\u305d\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3057\u305f\u3089\u3001\u6b21\u306e300\u79d2\u9593\uff085\u5206\u9593\uff09\u306f\u3001\u518d\u5ea6\u30aa\u30ea\u30b8\u30ca\u30eb\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u305f\u60c5\u5831\u3092\u5fdc\u7b54\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u4e3b\u306aDNS\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u30c4\u30fc\u30eb\u3067\u9078\u629e\u3067\u304d\u308b\u4e3b\u306a\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u306e\u610f\u5473\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n<div id=\"id-a5ea0191-36a0-4c62-8f76-4d8b2943c558\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td>\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7<\/td><td>\u610f\u5473<\/td><\/tr><\/thead><tbody><tr><td><strong>A<\/strong><\/td><td>\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u30db\u30b9\u30c8\u540d\uff09\u306b\u5bfe\u5fdc\u3059\u308b<strong>IPv4\u30a2\u30c9\u30ec\u30b9<\/strong>\uff08\u4f8b: <code>142.250.196.110<\/code>\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>AAAA<\/strong><\/td><td>\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u30db\u30b9\u30c8\u540d\uff09\u306b\u5bfe\u5fdc\u3059\u308b<strong>IPv6\u30a2\u30c9\u30ec\u30b9<\/strong>\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>CNAME<\/strong><\/td><td>\u3042\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u5225\u306e\u30c9\u30e1\u30a4\u30f3\u540d\uff08\u6b63\u5f0f\u306a\u540d\u524d\uff09\u306b\u8ee2\u9001\uff08\u30a8\u30a4\u30ea\u30a2\u30b9\u8a2d\u5b9a\uff09\u3059\u308b\u969b\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>MX<\/strong><\/td><td>\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u5b9b\u306e\u30e1\u30fc\u30eb\u3092\u914d\u9001\u3059\u308b\u30b5\u30fc\u30d0\u30fc\uff08\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>TXT<\/strong><\/td><td>\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308b\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\uff08\u30e1\u30e2\u66f8\u304d\uff09\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u4e3b\u306bSPF\uff08\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff09\u306a\u3069\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>NS<\/strong><\/td><td>\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u60c5\u5831\u3092\u7ba1\u7406\u3057\u3066\u3044\u308b<strong>\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc<\/strong>\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>SRV<\/strong><\/td><td>\u7279\u5b9a\u306e\u30b5\u30fc\u30d3\u30b9\uff08SIP\u3001XMPP\u306a\u3069\uff09\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u306e\u30db\u30b9\u30c8\u540d\u3084\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>CAA<\/strong><\/td><td>\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306eSSL\/TLS\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3067\u304d\u308b\u8a8d\u8a3c\u5c40\uff08CA\uff09\u3092\u5236\u9650\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>SOA<\/strong><\/td><td>\u30c9\u30e1\u30a4\u30f3\uff08\u30be\u30fc\u30f3\uff09\u306e\u7ba1\u7406\u60c5\u5831\uff08\u30b7\u30ea\u30a2\u30eb\u756a\u53f7\u3001\u7ba1\u7406\u8005\u306e\u9023\u7d61\u5148\u3001\u30be\u30fc\u30f3\u8ee2\u9001\u8a2d\u5b9a\u306a\u3069\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u3053\u306e\u30c4\u30fc\u30eb\u304c\u5f79\u7acb\u3064\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306eTTL\u78ba\u8a8d\u30c4\u30fc\u30eb\u306f\u3001\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u3067\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b5\u30fc\u30d0\u30fc\u79fb\u8ee2\uff08\u5f15\u3063\u8d8a\u3057\uff09\u306e\u8a08\u753b\u6642:<\/strong> Web\u30b5\u30fc\u30d0\u30fc\u3084\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u79fb\u8ee2\u3059\u308b\u969b\u3001\u4e8b\u524d\u306b\u73fe\u5728\u306eTTL\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002TTL\u304c\u9577\u3044\uff08\u4f8b: 86400\u79d2\uff1d24\u6642\u9593\uff09\u5834\u5408\u3001\u79fb\u8ee2\u4f5c\u696d\u306e24\u6642\u9593\u4ee5\u4e0a\u524d\u306bTTL\u3092\u77ed\u304f\uff08\u4f8b: 300\u79d2\uff1d5\u5206\uff09\u306b\u5909\u66f4\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u79fb\u8ee2\u5f8c\u306eDNS\u5207\u308a\u66ff\u3048\uff08IP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u66f4\uff09\u304c\u4e16\u754c\u4e2d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u8fc5\u901f\u306b\u53cd\u6620\u3055\u308c\u308b\u3088\u3046\u6e96\u5099\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>DNS\u30ec\u30b3\u30fc\u30c9\u5909\u66f4\u5f8c\u306e\u53cd\u6620\u78ba\u8a8d:<\/strong> DNS\u306e\u8a2d\u5b9a\uff08A\u30ec\u30b3\u30fc\u30c9\u3084MX\u30ec\u30b3\u30fc\u30c9\u306a\u3069\uff09\u3092\u5909\u66f4\u3057\u305f\u5f8c\u3001\u305d\u306e\u5909\u66f4\u304c\u6b63\u3057\u304f\u53cd\u6620\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u307e\u305f\u53e4\u3044TTL\u304c\u3044\u3064\u5207\u308c\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>DNS\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u6642:<\/strong> \u300cWeb\u30b5\u30a4\u30c8\u304c\u898b\u3048\u306a\u304f\u306a\u3063\u305f\u300d\u300c\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u300d\u3068\u3044\u3063\u305f\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u969b\u3001\u610f\u56f3\u3057\u305f\u901a\u308a\u306eDNS\u30ec\u30b3\u30fc\u30c9\u304c\u53c2\u7167\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u3042\u308b\u3044\u306f\u53e4\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6b8b\u3063\u3066\u3044\u306a\u3044\u304b\u3092\u8abf\u67fb\u3059\u308b\u624b\u52a9\u3051\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">TTL\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">Q. TTL\u304c\u77ed\u3044\uff08\u4f8b: 300\u79d2\uff09\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u306f\uff1f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30e1\u30ea\u30c3\u30c8:<\/strong> DNS\u30ec\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3057\u305f\u969b\u3001\u5909\u66f4\u5185\u5bb9\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306b\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u304c\u77ed\u304f\u306a\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u79fb\u8ee2\u306a\u3069\u3092\u8a08\u753b\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u6709\u5229\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30c7\u30e1\u30ea\u30c3\u30c8:<\/strong> \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9593\u304c\u77ed\u3044\u305f\u3081\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b\uff08DNS\u30af\u30a8\u30ea\uff09\u304c\u983b\u7e41\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Web\u30b5\u30a4\u30c8\u306e\u8868\u793a\u304c\u308f\u305a\u304b\u306b\u9045\u5ef6\u3057\u305f\u308a\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u8ca0\u8377\u304c\uff08\u308f\u305a\u304b\u306b\uff09\u9ad8\u307e\u3063\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">Q. TTL\u304c\u9577\u3044\uff08\u4f8b: 86400\u79d2\uff09\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u306f\uff1f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30e1\u30ea\u30c3\u30c8:<\/strong> \u4e00\u5ea6\u53d6\u5f97\u3057\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u9577\u6642\u9593\uff08\u4f8b: 24\u6642\u9593\uff09\u4fdd\u6301\u3055\u308c\u308b\u305f\u3081\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u56de\u6570\u304c\u6e1b\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540d\u524d\u89e3\u6c7a\u306e\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u8ca0\u8377\u3082\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30c7\u30e1\u30ea\u30c3\u30c8:<\/strong> DNS\u30ec\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3057\u305f\u5834\u5408\u3001\u53e4\u3044\u60c5\u5831\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u5207\u308c\u308b\u307e\u3067\uff08\u4f8b: \u6700\u592724\u6642\u9593\uff09\u5f85\u305f\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u5909\u66f4\u5185\u5bb9\u306e\u53cd\u6620\u304c\u975e\u5e38\u306b\u9045\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u30c9\u30e1\u30a4\u30f3\u540d\u30fb\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u30fbDNS\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3057\u3066\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306eTTL\u5024\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 TTL\u3092\u79d2\u6570\u3068\u3001\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u5f62\u5f0f(\u4f8b:3600\u79d2 = 1\u6642\u9593)\u3067\u8868\u793a\u3057\u307e\u3059\u3002 \u30c9\u30e1\u30a4\u30f3\u540d \u5fc5\u9808 \u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3082\u6307\u5b9a\u53ef\u80fd\u3067\u3059 &#8230; <\/p>\n","protected":false},"author":4,"featured_media":13509,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,48,53,52],"tags":[],"class_list":["post-12416","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tool","category-network","category-domain","category-dns","entry"],"_links":{"self":[{"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/posts\/12416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/comments?post=12416"}],"version-history":[{"count":0,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/posts\/12416\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/media\/13509"}],"wp:attachment":[{"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/media?parent=12416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/categories?post=12416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rakkokeyword.com\/techo\/wp-json\/wp\/v2\/tags?post=12416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}