{"id":18418,"date":"2026-03-26T15:05:49","date_gmt":"2026-03-26T14:05:49","guid":{"rendered":"https:\/\/webhosting.de\/tcp-vs-udp-hosting-performance-latency-serverboost\/"},"modified":"2026-03-26T15:05:49","modified_gmt":"2026-03-26T14:05:49","slug":"tcp-vs-udp-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9-%e3%83%ac%e3%82%a4%e3%83%86%e3%83%b3%e3%82%b7-serverboost","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/tcp-vs-udp-hosting-performance-latency-serverboost\/","title":{"rendered":"TCP\u3068UDP\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6bd4\u8f03"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5b9f\u7528\u7684\u306a\u65b9\u6cd5\u3067TCP\u3068UDP\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3092\u6bd4\u8f03\u3057\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9078\u629e\u3001\u5f85\u3061\u6642\u9593\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u969c\u5bb3\u30ea\u30b9\u30af\u306b\u3069\u306e\u3088\u3046\u306a\u6e2c\u5b9a\u53ef\u80fd\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3069\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u304c\u6b21\u306e\u3088\u3046\u306a\u6069\u6075\u3092\u53d7\u3051\u308b\u304b\u3092\u660e\u78ba\u306b\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <strong>TCP<\/strong> \u7d66\u4ed8\u5148 <strong>UDP<\/strong> \u305d\u3057\u3066HTTP\/3\u304c\u3069\u306e\u3088\u3046\u306bQUIC\u3068\u306e\u6a4b\u6e21\u3057\u3092\u3059\u308b\u304b\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<ul>\n  <li><strong>TCP\u306e\u4fe1\u983c\u6027<\/strong>\u6ce8\u6587\u914d\u4fe1\u3001\u30a8\u30e9\u30fc\u8a02\u6b63\u3001\u30d5\u30ed\u30fc\u5236\u5fa1<\/li>\n  <li><strong>UDP\u901f\u5ea6<\/strong>\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306a\u3057\u3001\u4f4e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3001\u4f4e\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/li>\n  <li><strong>HTTP\/3\/QUIC<\/strong>UDP\u30d9\u30fc\u30b9\u3001\u30d8\u30c3\u30c9\u30aa\u30d6\u30e9\u30a4\u30f3\u30fb\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306a\u3057\u3001TLS 1.3<\/li>\n  <li><strong>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u7df4\u7fd2<\/strong>\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e\u9069\u5207\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/li>\n  <li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>WAF\/\u30ec\u30fc\u30c8\u5236\u9650\u3001DoS\u9632\u5fa1\u3001\u30dd\u30fc\u30c8\u885b\u751f<\/li>\n<\/ul>\n\n<h2>TCP\u3068UDP\u306e\u7c21\u5358\u306a\u8aac\u660e<\/h2>\n\n<p>\u79c1\u306f\u82af\u304b\u3089\u59cb\u3081\u308b\uff1a <strong>TCP<\/strong> \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30aa\u30ea\u30a8\u30f3\u30c6\u30c3\u30c9\u306b\u52d5\u4f5c\u3057\u3001\u30c7\u30fc\u30bf\u304c\u6d41\u308c\u308b\u524d\u306b3\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306b\u4f9d\u5b58\u3059\u308b\u3002\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30d1\u30b1\u30c3\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u9806\u5e8f\u3092\u4fdd\u8a3c\u3057\u3001\u5931\u308f\u308c\u305f\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u518d\u5ea6\u8981\u6c42\u3059\u308b\u3002\u305d\u306e\u7d50\u679c\u3001\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30f3\u30c4\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306b\u4e0d\u53ef\u6b20\u306a\u6574\u5408\u6027\u3068\u4e00\u8cab\u6027\u304c\u4fdd\u305f\u308c\u308b\u3002\u3053\u308c\u3089\u306e\u4fdd\u8a3c\u306b\u306f\u6642\u9593\u3068\u5e2f\u57df\u5e45\u304c\u304b\u304b\u308b\u304c\u3001\u8aa4\u3063\u305f\u30ec\u30b9\u30dd\u30f3\u30b9\u3084\u8cc7\u7523\u306e\u7834\u640d\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002. <strong>UDP<\/strong> \u306f\u7570\u306a\u308b\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u3068\u308a\u3001\u5354\u8b70\u306a\u3057\u3067\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u4e0b\u3052\u3001\u30b8\u30c3\u30bf\u30fc\u3092\u6e1b\u3089\u3059\u3002.<\/p>\n\n<p>\u79c1\u306f\u3088\u304f\u8aa4\u89e3\u3092\u76ee\u306b\u3059\u308b\uff1aUDP\u306f\u300c\u3088\u308a\u826f\u3044\u300d\u300c\u3088\u308a\u60aa\u3044\u300d\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u7570\u306a\u308b\u76ee\u7684\u3092\u679c\u305f\u3059\u3082\u306e\u3060\u3002\u5f85\u3061\u6642\u9593\u306e\u6700\u5c0f\u5316\u306b\u6ce8\u610f\u3092\u6255\u3046\u4eba\u306f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u5c11\u306a\u3055\u3068\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u4f4e\u3055\u304b\u3089\u6069\u6075\u3092\u53d7\u3051\u308b\u3002\u4e00\u65b9\u3001\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u304c\u306a\u304f\u3001\u9806\u5e8f\u304c\u53b3\u5bc6\u3067\u3042\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30ed\u30b9\u306b\u5bfe\u51e6\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002TCP\u306f\u8f3b\u8f33\u3068\u30d5\u30ed\u30fc\u5236\u5fa1\u306b\u3088\u3063\u3066\u8ca0\u8377\u306e\u30d4\u30fc\u30af\u3092\u8efd\u6e1b\u3057\u307e\u3059\u304c\u3001UDP\u306f\u56de\u7dda\u3092\u7121\u5236\u9650\u306b\u5229\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u9055\u3044\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u95a2\u3059\u308b\u3042\u3089\u3086\u308b\u6c7a\u5b9a\u3092\u7279\u5fb4\u3065\u3051\u308b\u3002 <strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/strong> \u305d\u3057\u3066 <strong>\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/server-vergleich-hosting-3951.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>TCP\u306b\u9069\u3057\u305f\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306f\uff1f<\/h2>\n\n<p>\u3092\u30bb\u30c3\u30c8\u3057\u305f\u3002 <strong>TCP<\/strong> \u30a8\u30e9\u30fc\u304b\u3089\u306e\u89e3\u653e\u304c\u512a\u5148\u3055\u308c\u308b\u5834\u5408\u53e4\u5178\u7684\u306a\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3001API\u3001\u52d5\u7684\u30da\u30fc\u30b8\u3067\u306f\u3001HTML\u3001CSS\u3001JavaScript\u3001\u753b\u50cf\u304c\u6b63\u3057\u304f\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3088\u3046\u3001\u5b8c\u5168\u306a\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u8981\u6c42\u3055\u308c\u308b\u3002SMTP\u3001IMAP\u3001POP3\u306a\u3069\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u78ba\u5b9f\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u3001\u6574\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u3082\u4e00\u8cab\u6027\u304c\u8981\u6c42\u3055\u308c\u308b\u3002\u518d\u9001\u4fe1\u304c\u30a8\u30f3\u30c9\u30fb\u30c4\u30fc\u30fb\u30a8\u30f3\u30c9\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u3001\u5927\u898f\u6a21\u306a\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u3082\u4fdd\u8a3c\u306e\u6069\u6075\u3092\u53d7\u3051\u307e\u3059\u3002.<\/p>\n\n<p>\u9ad8\u8ca0\u8377\u6642\u306b\u306f\u3001TCP\u306f\u30ed\u30b9\u304c\u767a\u751f\u3059\u308b\u3068\u3059\u3050\u306b\u7a4d\u6975\u7684\u306b\u30d6\u30ec\u30fc\u30ad\u3092\u304b\u3051\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30b5\u30fc\u30d0\u30fc\u3092\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u304b\u3089\u5b88\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u77ed\u671f\u7684\u306b\u306f\u9045\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u9577\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u3082\u5b89\u5b9a\u3057\u305f\u5fdc\u7b54\u6642\u9593\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002\u30b7\u30e7\u30c3\u30d7\u3084SaaS\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3001\u30dd\u30fc\u30bf\u30eb\u30b5\u30a4\u30c8\u3067\u306f\u3001\u3053\u306e\u65b9\u6cd5\u3067\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3001\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30d0\u30b9\u30b1\u30c3\u30c8\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u4fe1\u983c\u6027\u306f\u6700\u5f8c\u306e\u30df\u30ea\u79d2\u3088\u308a\u3082\u91cd\u8981\u3067\u3059\u3002\u5b9f\u969b\u306e <strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/strong> \u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u306f\u4ed6\u306e\u30d3\u30eb\u30c7\u30a3\u30f3\u30b0\u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u3046\u304c\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30ca\u30eb\u306a\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u306fTCP\u3092\u907f\u3051\u3066\u306f\u901a\u308c\u306a\u3044\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/tcp_udp_hosting_vergleich_4321.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bUDP\u306e\u8f1d\u304d<\/h2>\n\n<p>\u79c1\u306f\u4ee5\u4e0b\u3092\u9078\u629e\u3057\u307e\u3059 <strong>UDP<\/strong>, \u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u3068\u30b9\u30e0\u30fc\u30ba\u3055\u304c\u91cd\u8996\u3055\u308c\u308b\u5834\u5408\u3002\u30e9\u30a4\u30d6\u30fb\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u30b2\u30fc\u30e0\u3001VoIP\u306f\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u304c\u30b9\u30bf\u30c3\u30bf\u30ea\u30f3\u30b0\u306a\u3057\u306b\u5b9f\u884c\u3055\u308c\u308b\u9650\u308a\u3001\u6642\u6298\u306e\u30ed\u30b9\u3092\u8a31\u5bb9\u3059\u308b\u3002\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306a\u3057\u3067\u5373\u5ea7\u306b\u9001\u4fe1\u304c\u958b\u59cb\u3055\u308c\u308b\u305f\u3081\u3001\u30e2\u30d0\u30a4\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u306f\u7279\u306b\u9855\u8457\u3067\u3059\u3002UDP\u306f\u30d8\u30c3\u30c9\u30fb\u30aa\u30d6\u30fb\u30e9\u30a4\u30f3\u306e\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u5931\u3063\u3066\u3082\u30d5\u30ed\u30fc\u5168\u4f53\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u306f\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u518d\u751f\u3068\u4f4e\u9045\u5ef6\u304c\u5b9f\u73fe\u3057\u307e\u3059\u3002.<\/p>\n\n<p>DNS\u306e\u30af\u30a8\u30ea\u306f\u3001\u5c0f\u3055\u306a\u30b9\u30b1\u30fc\u30eb\u3067\u305d\u306e\u52b9\u679c\u3092\u793a\u3057\u3066\u3044\u308b\uff1a\u77ed\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u3001\u901f\u3044\u8cea\u554f\u3068\u7b54\u3048\u306e\u30d1\u30bf\u30fc\u30f3\u3001\u6700\u5c0f\u9650\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3002QUIC\u306f\u9ad8\u901f\u306aUDP\u3092\u30d9\u30fc\u30b9\u306b\u6697\u53f7\u5316\u3068\u591a\u91cd\u5316\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u3002\u540c\u6642\u306b\u3001\u8efd\u91cf\u8a2d\u8a08\u306fCPU\u306b\u512a\u3057\u304f\u3001\u9ad8\u5bc6\u5ea6\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30fb\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3092\u3088\u308a\u52b9\u7387\u7684\u306b\u3057\u307e\u3059\u3002\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u5834\u5408\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u7bc0\u7d04\u3057\u3001\u5f85\u3061\u6642\u9593\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30fb\u30a8\u30c3\u30b8\u3001\u30b2\u30fc\u30e0\u30fb\u30b5\u30fc\u30d0\u30fc\u3001\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u30fb\u30b5\u30fc\u30d0\u30fc\u306b\u6700\u9069\u3067\u3059\u3002 <strong>\u30a2\u30d7\u30ea<\/strong>.<\/p>\n\n<h2>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3001\u30b8\u30c3\u30bf\u30fc\uff1a\u4f55\u304c\u672c\u5f53\u306b\u91cd\u8981\u304b<\/h2>\n\n<p>\u79c1\u306f\u3001\u958b\u59cb\u6642\u9593\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3001\u30b8\u30c3\u30bf\u30fc\u3001\u30cd\u30c3\u30c8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306b\u57fa\u3065\u3044\u3066\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u3002\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u306a\u3044\u305f\u3081\u3001\u8d77\u52d5\u6642\u306fUDP\u304c\u52dd\u3064\u3002TCP\u306f\u3001\u7d14\u7c8b\u306a\u30c7\u30fc\u30bf\u30d1\u30b9\u3067\u306f\u9ad8\u3044\u30d4\u30fc\u30af\u30fb\u30ec\u30fc\u30c8\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u304c\u3001\u518d\u9001\u4fe1\u3084\u30a6\u30a3\u30f3\u30c9\u30a6\u8abf\u6574\u306e\u305f\u3081\u306b\u6642\u9593\u3092\u5931\u3046\u3002\u30d8\u30c3\u30c9\u30aa\u30d6\u30e9\u30a4\u30f3\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306f\u3001\u500b\u3005\u306e\u30ed\u30b9\u304c\u30d5\u30ed\u30fc\u5168\u4f53\u3092\u30b9\u30ed\u30fc\u30c0\u30a6\u30f3\u3055\u305b\u308b\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002QUIC\u4e0a\u306eHTTP\/3\u306f\u3001\u307e\u3055\u306b\u3053\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u56de\u907f\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5927\u5e45\u306b\u52a0\u901f\u3057\u307e\u3059\u3002.<\/p>\n\n<p>\u79c1\u304c\u6df7\u96d1\u884c\u52d5\u306b\u6ce8\u76ee\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u6df7\u96d1\u884c\u52d5\u304c\u8a8d\u77e5\u5ea6\u3092\u9ad8\u3081\u308b\u304b\u3089\u3067\u3042\u308b\u3002 <strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u578b\u3002\u306b\u9069\u3057\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0 <a href=\"https:\/\/webhosting.de\/ja\/tcp-%e8%bc%bb%e8%bc%b3%e5%88%b6%e5%be%a1%e3%81%ae%e5%bd%b1%e9%9f%bf%e3%81%ae%e6%af%94%e8%bc%83-%e3%83%ac%e3%82%a4%e3%83%86%e3%83%b3%e3%82%b7\/\">TCP\u8f3b\u8f33\u5236\u5fa1<\/a> \u306f\u5f85\u3061\u6642\u9593\u306e\u30d4\u30fc\u30af\u3092\u5927\u5e45\u306b\u6e1b\u5c11\u3055\u305b\u308b\u3002UDP\u30d9\u30fc\u30b9\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30d5\u30ed\u30fc\u5236\u5fa1\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u59d4\u306d\u308b\u3002\u6df7\u5728\u3057\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u30c9\u30a2\u30c4\u30fc\u30c9\u30a2\u306e\u4e00\u8cab\u3057\u305f\u6642\u9593\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002iperf\u3092\u4f7f\u3063\u305f\u6e2c\u5b9a\u3067\u306f\u3001\u7279\u306b\u30b8\u30c3\u30bf\u30fc\u306e\u70b9\u3067\u305d\u306e\u9055\u3044\u304c\u3088\u304f\u308f\u304b\u308a\u307e\u3059\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u57fa\u6e96<\/th>\n      <th>TCP<\/th>\n      <th>UDP<\/th>\n      <th>HTTP\/3 (QUIC)<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td><strong>\u958b\u59cb\u6642\u9593<\/strong><\/td>\n      <td>\u3088\u308a\u9ad8\u3044\uff08\u63e1\u624b\uff09<\/td>\n      <td>\u975e\u5e38\u306b\u4f4e\u3044<\/td>\n      <td>\u4f4e\u3044\uff080RTT\u53ef\u80fd\uff09<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u4fe1\u983c\u6027<\/strong><\/td>\n      <td>\u9ad8\u304f\u3001\u7d44\u7e54\u7684<\/td>\n      <td>\u4fdd\u8a3c\u306a\u3057<\/td>\n      <td>\u9ad8\u3044\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u30d9\u30fc\u30b9<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u30b8\u30c3\u30bf\u30fc<\/strong><\/td>\n      <td>\u4e2d\uff5e\u4f4e<\/td>\n      <td>\u975e\u5e38\u306b\u4f4e\u3044<\/td>\n      <td>\u30ed\u30fc<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9<\/strong><\/td>\n      <td>ACK\/\u518d\u9001\u4fe1<\/td>\n      <td>\u975e\u5e38\u306b\u30b9\u30ea\u30e0<\/td>\n      <td>\u30b9\u30ea\u30e0 + TLS 1.3<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u5c0f\u5305\u306e\u7d1b\u5931<\/strong><\/td>\n      <td>\u30d6\u30ed\u30c3\u30af\u30fb\u30b9\u30c8\u30ea\u30fc\u30e0<\/td>\n      <td>\u30a2\u30d7\u30ea\u8010\u6027\u304c\u5fc5\u8981<\/td>\n      <td>\u30d8\u30c3\u30c9\u30fb\u30aa\u30d6\u30fb\u30e9\u30a4\u30f3\u306a\u3057<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u4ee3\u8868\u7684\u306a\u30b5\u30fc\u30d3\u30b9<\/strong><\/td>\n      <td>\u30a6\u30a7\u30d6\u3001\u30e1\u30fc\u30eb\u3001DB<\/td>\n      <td>DNS\u3001VoIP\u3001\u30b2\u30fc\u30e0<\/td>\n      <td>\u30e2\u30c0\u30f3\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>\u5b89\u5168\u6027\u3068\u4f5c\u696d\u5b89\u5168\u6027\u306e\u6bd4\u8f03<\/h2>\n\n<p>\u79c1\u306f\u5e38\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u3054\u3068\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u8003\u3048\u3066\u3044\u308b\u3002TCP\u306fSYN\u30d5\u30e9\u30c3\u30c9\u306e\u6249\u3092\u958b\u304d\u3001\u534a\u958b\u304d\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u84c4\u7a4d\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u5727\u8feb\u3059\u308b\u3002SYN\u30af\u30c3\u30ad\u30fc\u3001\u63a5\u7d9a\u30ec\u30fc\u30c8\u5236\u9650\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0WAF\u306a\u3069\u306e\u5bfe\u7b56\u304c\u3053\u308c\u306b\u5bfe\u6297\u3059\u308b\u3002UDP\u306f\u3001\u5897\u5e45\u653b\u6483\u3084\u30b5\u30fc\u30d3\u30b9\u304c\u6b63\u3057\u304f\u5fdc\u7b54\u3057\u306a\u3044\u5834\u5408\u306e\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308b\u30ea\u30b9\u30af\u3092\u3082\u305f\u3089\u3059\u3002\u53b3\u683c\u306a\u30ec\u30fc\u30c8\u5236\u9650\u3001\u30af\u30ea\u30fc\u30f3\u30dd\u30fc\u30c8\u30dd\u30ea\u30b7\u30fc\u3001\u30d7\u30ed\u30ad\u30b7\u304c\u3053\u308c\u3089\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u3002.<\/p>\n\n<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30fb\u30ec\u30d9\u30eb\u3067\u306f\u3001\u30be\u30fc\u30f3\u3068\u30dd\u30ea\u30b7\u30fc\u3092\u53b3\u91cd\u306b\u4fdd\u3063\u3066\u3044\u307e\u3059\u3002\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306aTCP\u30b5\u30fc\u30d3\u30b9\u3068\u30ce\u30a4\u30ba\u306e\u591a\u3044UDP\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u5206\u96e2\u3057\u3001\u30b9\u30d1\u30a4\u30af\u304c\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0\u306b\u5fcd\u3073\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30ae\u30f3\u30b0\u3068\u30cd\u30c3\u30c8\u30d5\u30ed\u30fc\u5206\u6790\u306f\u3001\u554f\u984c\u306b\u306a\u308b\u524d\u306b\u7570\u5e38\u3092\u5831\u544a\u3059\u308b\u3002TLS 1.3\u306fQUIC\/HTTP3\u304c\u8aad\u307f\u53d6\u3089\u308c\u308b\u306e\u3092\u9632\u3050\u304c\u3001DoS\u306f\u4f9d\u7136\u3068\u3057\u3066\u554f\u984c\u3067\u3042\u308b\u3002\u65e9\u3044\u6bb5\u968e\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u3001\u3053\u3053\u3067\u5f79\u7acb\u3064\u3002\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u521d\u671f\u6bb5\u968e\u3067\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u3001\u3053\u306e\u70b9\u3067\u5f79\u306b\u7acb\u3064\u3002 <strong>\u4fe1\u983c\u3067\u304d\u308b<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/tcp-vs-udp-hosting-vergleich-1025.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>HTTP\/3\u3068QUIC\uff1aUDP\u306e\u52b9\u7387\u7684\u306a\u5229\u7528<\/h2>\n\n<p>QUIC\u306fUDP\u306e\u5229\u70b9\u3092\u5de7\u307f\u306b\u30d0\u30f3\u30c9\u30eb\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u79c1\u306f\u6700\u8fd1\u306e\u30b5\u30a4\u30c8\u3067\u306fHTTP\/3\u3092\u6709\u52b9\u306b\u3057\u3066\u3044\u308b\u3002\u591a\u91cd\u5316\u306b\u3088\u308a\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u9593\u306e\u30d6\u30ed\u30c3\u30af\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u500b\u3005\u306e\u30ed\u30b9\u304c\u30da\u30fc\u30b8\u5168\u4f53\u3092\u6ede\u3089\u305b\u308b\u3053\u3068\u304c\u306a\u3044\u30020-RTT\u306b\u3088\u308a\u3001\u5f8c\u7d9a\u306e\u63a5\u7d9a\u306e\u958b\u59cb\u6642\u9593\u304c\u5927\u5e45\u306b\u77ed\u7e2e\u3055\u308c\u308b\u3002\u3053\u308c\u306f\u3001\u72b6\u6cc1\u304c\u5909\u5316\u3059\u308b\u30e2\u30d0\u30a4\u30eb\u7121\u7dda\u30ea\u30f3\u30af\u3067\u7279\u306b\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u8a73\u3057\u304f\u306f <a href=\"https:\/\/webhosting.de\/ja\/http3-%e5%af%be-http2-webhosting-%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%83%81%e3%82%a7%e3%83%83%e3%82%af-topserver\/\">HTTP\/3\u3068HTTP\/2\u306e\u6bd4\u8f03<\/a> \u3068\u3059\u3050\u306b\u5b9f\u7528\u7684\u306a\u9055\u3044\u3092\u8a8d\u8b58\u3059\u308b\u3002.<\/p>\n\n<p>\u3059\u3079\u3066\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u3059\u3050\u306bHTTP\/3\u3092\u8a71\u3059\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u79c1\u306f\u6bb5\u968e\u7684\u306b\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f34\u3046\u3002 HTTP\/2\u307e\u305f\u306f1.1\u3078\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u5931\u308f\u308c\u306a\u3044\u3088\u3046\u306b\u91cd\u8981\u306a\u307e\u307e\u3067\u3042\u308b\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001HTTP\/3\u3092\u3088\u308a\u5f37\u304f\u5f37\u5236\u3059\u308b\u524d\u306b\u3001\u6210\u529f\u7387\u3068\u6642\u9593\u306e\u5897\u52a0\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u512a\u308c\u305fQUIC\u30b9\u30bf\u30c3\u30af\u3092\u6301\u3064CDN\u306f\u3001\u3057\u3070\u3057\u3070\u6700\u9ad8\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u3002\u4eca\u65e5\u3001\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u77ed\u3044 <strong>\u9045\u5ef6\u6642\u9593<\/strong>.<\/p>\n\n<h2>\u5b9f\u8df5\uff1a\u795e\u8a71\u306b\u3068\u3089\u308f\u308c\u306a\u3044\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n<p>\u79c1\u306f\u3001\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u3001\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5024\u306a\u3069\u3001\u3059\u3050\u306b\u6a5f\u80fd\u3059\u308b\u3068\u3053\u308d\u304b\u3089\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3092\u59cb\u3081\u307e\u3059\u3002TCP\u5074\u3067\u306f\u3001\u6700\u65b0\u306e\u8f3b\u8f33\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u308a\u3001\u8ca0\u8377\u304c\u304b\u304b\u3063\u3066\u3082\u3088\u308a\u5747\u4e00\u306a\u5fdc\u7b54\u6642\u9593\u304c\u5f97\u3089\u308c\u308b\u3002TFO\uff08Fast Open\uff09\u306f\u958b\u59cb\u6642\u306e\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u3092\u7bc0\u7d04\u3057\u3001TLS 1.3\u306f\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u77ed\u7e2e\u3059\u308b\u3002UDP\u5074\u3067\u306f\u3001\u30a2\u30d7\u30ea\u5074\u306e\u30ec\u30fc\u30c8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3001\u30d5\u30a9\u30ef\u30fc\u30c9\u30a8\u30e9\u30fc\u8a02\u6b63\u3001\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\u3001\u8ce2\u660e\u306a\u30ea\u30c8\u30e9\u30a4\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8abf\u6574\u306b\u3088\u308a\u3001\u30b8\u30c3\u30bf\u30fc\u3092\u6e1b\u3089\u3057\u3001UDP\u306e\u30ab\u30fc\u30d6\u3092\u6ed1\u3089\u304b\u306b\u3057\u307e\u3059\u3002 <strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>.<\/p>\n\n<p>\u3084\u307f\u304f\u3082\u306a\u6700\u5927\u5316\u306f\u307b\u3068\u3093\u3069\u5f79\u306b\u7acb\u305f\u306a\u3044\u306e\u3067\u3001\u79c1\u306f\u30ab\u30fc\u30cd\u30eb\u30fb\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3060\u3051\u3092\u7279\u5225\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u8abf\u6574\u524d\u3068\u8abf\u6574\u5f8c\u306e\u6e2c\u5b9a\u3067\u3001\u5909\u66f4\u304c\u672c\u5f53\u306b\u6709\u52b9\u304b\u3069\u3046\u304b\u304c\u308f\u304b\u308b\u3002\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u6b63\u5f53\u3067\u3042\u308c\u3070\u3001\u30a8\u30c3\u30b8\u30b5\u30fc\u30d0\u30fc\u306fNIC\u30aa\u30d5\u30ed\u30fc\u30c9\u3084CPU\u30d4\u30f3\u30cb\u30f3\u30b0\u306e\u6069\u6075\u3092\u53d7\u3051\u308b\u3002\u5b9f\u969b\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4f7f\u3063\u305fA\/B\u30c6\u30b9\u30c8\u306f\u3001\u6700\u826f\u306e\u6c7a\u5b9a\u3092\u3082\u305f\u3089\u3059\u3002\u30e1\u30c8\u30ea\u30af\u30b9\u304c\u306a\u3051\u308c\u3070\u3001\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306f\u63a8\u6e2c\u30b2\u30fc\u30e0\u306e\u307e\u307e\u3067\u3059\u3002\u30e1\u30c8\u30ea\u30af\u30b9\u304c\u3042\u308c\u3070\u3001\u4fe1\u983c\u3067\u304d\u308b\u30c4\u30fc\u30eb\u306b\u306a\u308a\u307e\u3059\u3002 <strong>\u6700\u9069\u5316<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/tcp_udp_hosting_8723.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u6c7a\u5b9a\uff1a\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3068CDN<\/h2>\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30fb\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u4ee5\u4e0b\u306e\u7d4c\u8def\u3067\u79fb\u52d5\u3059\u308b\u3002 <strong>TCP<\/strong>, \u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u304c\u91cd\u8981\u306a\u30b9\u30c8\u30ea\u30fc\u30e0\u306f <strong>UDP<\/strong>\/QUIC\u3002\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u306fTCP\u306e\u8ca0\u8377\u3092\u30d0\u30f3\u30c9\u30eb\u3057\u3001\u30a8\u30c3\u30b8\u30ce\u30fc\u30c9\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u8fd1\u304f\u3067UDP\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u7d42\u7aef\u3059\u308b\u3002\u3053\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306b\u3088\u308a\u3001\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0\u304c\u4fdd\u8b77\u3055\u308c\u3001\u8ca0\u8377\u304c\u6700\u9069\u306b\u51e6\u7406\u3055\u308c\u308b\u5834\u6240\u306b\u5206\u6563\u3055\u308c\u308b\u3002CDN\u306f\u307e\u305f\u3001RTT\u3092\u77ed\u7e2e\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u306e\u8fd1\u304f\u3067\u63d0\u4f9b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u306f\u3088\u308a\u5c11\u306a\u3044\u30db\u30c3\u30d7\u6570\u3067\u30e6\u30fc\u30b6\u30fc\u306b\u5c4a\u304d\u3001\u30b8\u30c3\u30bf\u30fc\u3082\u5927\u5e45\u306b\u6e1b\u5c11\u3059\u308b\u3002.<\/p>\n\n<p>\u79c1\u306f\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u3092\u660e\u78ba\u306b\u8a08\u753b\u3057\u3066\u3044\u308b\uff1aQUIC\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3082\u3001HTTP\/2\u306f\u30b5\u30fc\u30d3\u30b9\u3092\u5b9f\u884c\u3057\u7d9a\u3051\u308b\u3002DNS\u3001TLS\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u306f\u3001\u969c\u5bb3\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u5197\u9577\u6027\u304c\u5fc5\u8981\u3060\u3002\u7ba1\u7406\u3001\u30c7\u30fc\u30bf\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30c1\u30e3\u30f3\u30cd\u30eb\u3092\u8ad6\u7406\u7684\u306b\u5206\u96e2\u3059\u308b\u3053\u3068\u3067\u3001\u5168\u4f53\u50cf\u3092\u628a\u63e1\u3067\u304d\u308b\u3002\u6a29\u5229\u3001\u30ec\u30fc\u30c8\u3001\u30af\u30a9\u30fc\u30bf\u306f\u53b3\u683c\u306b\u5236\u9650\u3055\u308c\u305f\u307e\u307e\u306a\u306e\u3067\u3001\u8aa4\u7528\u304c\u5927\u708e\u4e0a\u306e\u5f15\u304d\u91d1\u306b\u306a\u308b\u3053\u3068\u306f\u306a\u3044\u3002\u3053\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u3001\u9ad8\u7a3c\u50cd\u6642\u3084\u969c\u5bb3\u6642\u306e\u53ef\u7528\u6027\u3068\u4fe1\u983c\u6027\u3068\u3044\u3046\u70b9\u3067\u3001\u540c\u7b49\u306e\u5229\u76ca\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002 <strong>\u54c1\u8cea<\/strong> \u306b\u3042\u308b\u3002<\/p>\n\n<h2>DNS\u3001UDP\u5bfeTCP\u3001DoH\/DoT\u306e\u5b9f\u969b<\/h2>\n\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f <strong>UDP<\/strong> \u306a\u305c\u306a\u3089\u3001\u77ed\u3044\u5fdc\u7b54\u306f\u305d\u3053\u306b\u6700\u3082\u901f\u304f\u5230\u7740\u3059\u308b\u304b\u3089\u3067\u3042\u308b\u3002\u5927\u304d\u306a\u30ec\u30b3\u30fc\u30c9\u3084ZONE\u8ee2\u9001\u306e\u5834\u5408\u3001DNS\u306f\u81ea\u52d5\u7684\u306b <strong>TCP<\/strong>, \u65ad\u7247\u5316\u3068\u640d\u5931\u3092\u907f\u3051\u308b\u305f\u3081\u3060\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u306f\u3001DoH\/DoT\u3092\u4f7f\u3063\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6697\u53f7\u5316\u3057\u3001\u8ffd\u8de1\u3092\u96e3\u3057\u304f\u3059\u308b\u3053\u3068\u3082\u3057\u3066\u3044\u308b\u3002\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u91cd\u8996\u3059\u308b\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306b\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u8003\u306b\u3059\u308b\u4fa1\u5024\u304c\u3042\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/dns-over-https-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%81%ae%e3%83%92%e3%83%b3%e3%83%88%e3%82%ac%e3%82%a4%e3%83%89-%e3%83%97%e3%83%ad%e3%82%ad%e3%82%b7\/\">DNS over HTTPS<\/a>. .\u3053\u3046\u3057\u3066\u79c1\u306f\u30b9\u30d4\u30fc\u30c9\u3068\u6a5f\u5bc6\u6027\u3092\u4e21\u7acb\u3055\u305b\u3001\u30d1\u30b9\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u7dad\u6301\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<p>DNS\u306e\u30eb\u30fc\u30c8\u304c\u9045\u3044\u3068\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u6700\u9069\u5316\u304c\u3067\u304d\u306a\u3044\u304b\u3089\u3060\u3002\u9069\u5207\u306a\u5834\u6240\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7f6e\u304f\u3053\u3068\u3067\u3001RTT\u3092\u6e1b\u3089\u3057\u3001\u30d4\u30fc\u30af\u6642\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3059\u308b\u3002UDP\u304c\u65ad\u7247\u5316\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u6642\u306b\u3001\u5897\u5e45\u3084\u30aa\u30fc\u30d7\u30f3\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u5bfe\u3057\u3066\u30ea\u30be\u30eb\u30d0\u3092\u53b3\u91cd\u306b\u4fdd\u8b77\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e\u63a5\u7d9a\u306e\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u9ad8\u901f\u306b\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <strong>\u3064\u307e\u3057\u3044<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/EntwicklerSchreibtisch1234.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30c6\u30b9\u30c8\uff1a\u63a8\u6e2c\u3067\u306f\u306a\u304f\u6e2c\u5b9a<\/h2>\n\n<p>\u79c1\u306f\u76f4\u611f\u3067\u306f\u306a\u304f\u3001\u6e2c\u5b9a\u5024\u306b\u983c\u3063\u3066\u3044\u308b\u3002 <strong>TCP<\/strong> \u305d\u3057\u3066 <strong>UDP<\/strong>, \u30b8\u30c3\u30bf\u30fc\u30fb\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3080\u30a6\u30a7\u30d6\u30fb\u30d0\u30a4\u30bf\u30eb\u306f\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u30fb\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u6e2c\u5b9a\u3057\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u80cc\u5f8c\u306b\u3042\u308b\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002\u5408\u6210\u30c1\u30a7\u30c3\u30af\u306f\u30d1\u30b9\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u30fb\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5206\u96e2\u3057\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3001OS\u304b\u3089\u306e\u30ed\u30b0\u3068\u30e1\u30c8\u30ea\u30af\u30b9\u304c\u3001\u30ef\u30a4\u30e4\u3068\u30a2\u30d7\u30ea\u9593\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u307e\u3059\u3002.<\/p>\n\n<p>\u79c1\u306f\u95be\u5024\u3092\u8a2d\u5b9a\u3057\u3001\u5b9f\u969b\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u30a2\u30e9\u30fc\u30e0\u304c\u9cf4\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306b\u306f\u5e73\u5747\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u5206\u5e03\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30ea\u30ea\u30fc\u30b9\u30fb\u30c1\u30a7\u30c3\u30af\u3067\u306f\u3001\u672c\u756a\u524d\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u79c1\u306f\u3053\u306e\u30c4\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3001\u8fc5\u901f\u306a\u4fee\u6b63\u3068\u65b0\u3057\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5c0e\u5165\u3092\u884c\u3063\u3066\u3044\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057 <strong>\u4fe1\u983c\u6027<\/strong> \u4e00\u7dd2\u306b\u306d\u3002<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u30b3\u30b9\u30c8\u3068\u30ea\u30bd\u30fc\u30b9\u306e\u5074\u9762<\/h2>\n\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9078\u629e\u306f\u5e38\u306b\u30b3\u30b9\u30c8\u3067\u8a08\u7b97\u3059\u308b\u3002UDP\u306f\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u7bc0\u7d04\u3057\u3001CPU\u30b5\u30a4\u30af\u30eb\u3092\u89e3\u653e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u9ad8\u5bc6\u5ea6\u306e\u30db\u30b9\u30c8\u3092\u5b89\u304f\u904b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002TCP\u306f\u7ba1\u7406\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u304c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30a8\u30e9\u30fc\u304c\u5c11\u306a\u304f\u3001\u30b5\u30dd\u30fc\u30c8\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u308b\u3002QUIC\/HTTP3\u306f\u3001\u958b\u59cb\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u3001\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u304c\u6d41\u52d5\u7684\u306a\u307e\u307e\u3067\u3042\u308c\u3070\u3001\u5e97\u8217\u3067\u306e\u58f2\u4e0a\u3092\u8457\u3057\u304f\u52a0\u901f\u3059\u308b\u3002\u79c1\u306f\u3001\u9054\u6210\u3055\u308c\u305f\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u6642\u9593\u3068\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u306b\u3088\u3063\u3066\u3001\u30a4\u30f3\u30d5\u30e9\u306e\u4fa1\u683c\u3092\u30e6\u30fc\u30ed\u3067\u76f8\u5bfe\u5316\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u79c1\u306f\u751f\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3060\u3051\u3067\u306a\u304f\u3001\u30c1\u30a7\u30fc\u30f3\u5168\u4f53\u306e\u4e3b\u8981\u306a\u6570\u5024\u3082\u8a55\u4fa1\u3057\u307e\u3059\u3002\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306e\u5c11\u306a\u3055\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u5b89\u5b9a\u6027\u3001\u30d0\u30a6\u30f3\u30b9\u7387\u306e\u4f4e\u3055\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u4e2d\u7a0b\u5ea6\u306b\u9ad8\u3044\u904b\u7528\u30b3\u30b9\u30c8\u3092\u6b63\u5f53\u5316\u3059\u308b\u3002\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u304c\u512a\u5148\u3055\u308c\u308b\u5834\u5408\u306f\u3001UDP\u304c\u4e3b\u306a\u8ca0\u62c5\u3092\u8ca0\u3044\u3001\u30ce\u30fc\u30c9\u306e\u8cbb\u7528\u5bfe\u52b9\u679c\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u4e00\u8cab\u6027\u304c\u512a\u5148\u3055\u308c\u308b\u5834\u5408\u306f\u3001TCP\u306e\u65b9\u304c\u30a8\u30e9\u30fc\u30fb\u30b3\u30b9\u30c8\u304c\u4f4e\u3044\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u30d0\u30e9\u30f3\u30b9\u4e0a\u3001\u3053\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f <strong>\u7dcf\u8cbb\u7528<\/strong>.<\/p>\n\n<h2>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u73fe\u5b9f\uff1aMTU\u3001\u30df\u30c9\u30eb\u30dc\u30c3\u30af\u30b9\u3001NAT<\/h2>\n\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5229\u70b9\u3092\u6253\u3061\u6d88\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3060\u3002. <strong>MTU\u3068\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u5236\u9650<\/strong> \u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u304c\u5931\u308f\u308c\u308b\u3068\u3001\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u5168\u4f53\u304c\u4f7f\u3048\u306a\u304f\u306a\u308b\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306fUDP\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u5c0f\u3055\u304f\u4fdd\u3061\u3001\u30d1\u30b9\u306eMTU\u30c6\u30b9\u30c8\u3092\u4f7f\u3044\u3001IP\u306e\u65ad\u7247\u5316\u3092\u7a4d\u6975\u7684\u306b\u907f\u3051\u3066\u3044\u308b\u3002PMTUD\u306fTCP\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306f\u307e\u3060\u518d\u9001\u3068\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4fdd\u5b88\u7684\u306aMSS\u30af\u30e9\u30f3\u30d7\u3068\u8ce2\u660e\u306a\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\u304c\u30eb\u30fc\u30c8\u3092\u5b89\u5b9a\u3055\u305b\u307e\u3059\u3002.<\/p>\n\n<p><strong>\u30df\u30c9\u30eb\u30dc\u30c3\u30af\u30b9<\/strong> \u591a\u304f\u306e\u5834\u5408\u3001UDP\u306fTCP\u3088\u308a\u3082\u5236\u9650\u7684\u306b\u6271\u308f\u308c\u308b\u3002\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306f\u77ed\u3044\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u30fb\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3067UDP\u3092\u8ffd\u8de1\u3059\u308b\u3002\u79c1\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u30aa\u30fc\u30d7\u30f3\u306b\u4fdd\u3064\u305f\u3081\u306b\u3001\u5b9a\u671f\u7684\u306b\u8efd\u3044\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u3092\u9001\u308b\u3002NAT\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306f\u30dd\u30fc\u30c8\u3092\u3059\u3050\u306b\u518d\u5229\u7528\u3059\u308b\u3002\u305d\u306e\u305f\u3081\u3001QUIC\u306b\u306f\u5341\u5206\u306a\u30bd\u30fc\u30b9\u30dd\u30fc\u30c8\u3068\u77ed\u3044\u518d\u5229\u7528\u6642\u9593\u3092\u8a08\u753b\u3059\u308b\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u5909\u308f\u3063\u3066\u3082\uff08WLAN\u304b\u3089\u30e2\u30d0\u30a4\u30eb\u3078\uff09\u3001IP\u304c\u5909\u308f\u3063\u3066\u3082\u63a5\u7d9a\u3092\u7d99\u7d9a\u3067\u304d\u308b\u306e\u3067\u3001QUIC\u306e\u63a5\u7d9a\u79fb\u884c\u304c\u5f79\u306b\u7acb\u3063\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>UDP\/QUIC\u306e\u305f\u3081\u306e\u30b3\u30f3\u30c6\u30ca\u3001Kubernetes\u3001Ingress<\/h2>\n\n<p>\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u79c1\u306f\u6b21\u306e\u3053\u3068\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u308b\u3002 <strong>\u30a4\u30f3\u30b0\u30ec\u30b9\u306eUDP\u80fd\u529b<\/strong>. .\u4eca\u65e5\u3001\u3059\u3079\u3066\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304cHTTP\/3\u3092\u5b89\u5b9a\u7684\u306b\u7d42\u4e86\u3055\u305b\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u79c1\u306f\u3057\u3070\u3057\u3070\u3001UDP\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u8a71\u3059\u30a8\u30c3\u30b8\u30d7\u30ed\u30ad\u30b7\u306bQUIC\u3092\u59d4\u4efb\u3057\u3001TCP\u306f\u30af\u30e9\u30b9\u30bf\u5185\u90e8\u306e\u307e\u307e\u306b\u3057\u3066\u3044\u308b\u3002UDP\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u3001\u30af\u30a9\u30fc\u30bf\u3001DSCP\u30de\u30fc\u30ad\u30f3\u30b0\u304c\u9069\u5207\u306b\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u3001\u7d14\u7c8b\u306aNodePorts\u306e\u4ee3\u308f\u308a\u306b\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3046\u3002\u91cd\u8981\u306a\u306e\u306f <strong>\u9023\u7d50\u30c8\u30e9\u30c3\u30af\u5bb9\u91cf<\/strong>UDP\u30d5\u30ed\u30fc\u306f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u304c\u306a\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u30b9\u30c6\u30fc\u30c8\u3092\u751f\u6210\u3059\u308b\u3002\u79c1\u306f\u9069\u5207\u306a\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3068\u5236\u9650\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n<p>\u79c1\u3082\u89b3\u5bdf\u3057\u3066\u3044\u308b\u3002 <strong>\u30dd\u30c3\u30c9\u89aa\u548c\u6027<\/strong> QUIC\u306f\u4e00\u8cab\u3057\u305fCPU\u30ed\u30fc\u30ab\u30ea\u30c6\u30a3\uff08\u6697\u53f7\u5316\u3001\u30e6\u30fc\u30b6\u30fc\u30e9\u30f3\u30c9\u30b9\u30bf\u30c3\u30af\uff09\u306b\u3088\u308a\u5229\u76ca\u3092\u5f97\u3066\u3044\u308b\u3002QUIC\u306f\u3001\u4e00\u8cab\u3057\u305fCPU\u30ed\u30fc\u30ab\u30ea\u30c6\u30a3\uff08\u6697\u53f7\u3001\u30e6\u30fc\u30b6\u30fc\u30e9\u30f3\u30c9\u30b9\u30bf\u30c3\u30af\uff09\u304b\u3089\u30e1\u30ea\u30c3\u30c8\u3092\u5f97\u3066\u3044\u307e\u3059\u3002eBPF\u30d9\u30fc\u30b9\u306e\u89b3\u6e2c\u53ef\u80fd\u6027\u306f\u3001NIC\u3001\u30ab\u30fc\u30cd\u30eb\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u30b8\u30c3\u30bf\u30fc\u306e\u539f\u56e0\u3092\u793a\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u30b5\u30fc\u30d3\u30b9\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u5834\u5408\u3001TCP\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u30d0\u30fc\u30b9\u30c8\u30d4\u30fc\u30af\u304b\u3089\u5b88\u308b\u305f\u3081\u306b\u3001\u30ce\u30a4\u30ba\u306e\u591a\u3044UDP\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u5225\u3005\u306e\u30ce\u30fc\u30c9\u30d7\u30fc\u30eb\u306b\u5206\u96e2\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30fb\u30d1\u30b9\u30680-RTT\uff1a\u5b89\u5168\u306a\u5c0e\u5165<\/h2>\n\n<p>HTTP\/3\/QUIC <strong>\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb<\/strong> \u30aa\u30d5\uff1a\u6700\u521d\u306f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5272\u5408\u304c\u5c0f\u3055\u304f\u3001\u6210\u529f\u57fa\u6e96\uff08\u30a8\u30e9\u30fc\u7387\u3001TTFB\u5206\u5e03\u3001\u518d\u63a5\u7d9a\uff09\u304c\u660e\u78ba\u3067\u3001\u305d\u306e\u5f8c\u3086\u3063\u304f\u308a\u3068\u5897\u52a0\u3059\u308b\u3002. <strong>0-RTT<\/strong> \u306f\u518d\u63a5\u7d9a\u3092\u9ad8\u901f\u5316\u3059\u308b\u304c\u3001\u5076\u767a\u7684\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3057\u304b\u9069\u3055\u306a\u3044\u30020-RTT\u3067\u72b6\u614b\u3092\u5909\u66f4\u3059\u308b\u64cd\u4f5c(\u4f8b\u3048\u3070\u526f\u4f5c\u7528\u306e\u3042\u308bPOST)\u3092\u660e\u793a\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3059\u308b\u304b\u3001\u30ea\u30d7\u30ec\u30a4\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u5316\u3059\u308b\u305f\u3081\u306b\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306e\u78ba\u8a8d\u3092\u8981\u6c42\u3059\u308b\u3002\u79c1\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u30c1\u30b1\u30c3\u30c8\u3092\u77ed\u547d\u306a\u3082\u306e\u3068\u3057\u3066\u8a55\u4fa1\u3057\u3001\u53e4\u3044\u30c1\u30b1\u30c3\u30c8\u304c\u653b\u6483\u3055\u308c\u306b\u304f\u304f\u306a\u308b\u3088\u3046\u306b\u3001\u305d\u308c\u3089\u3092\u30c7\u30d0\u30a4\u30b9\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u3002.<\/p>\n\n<p><strong>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/strong> QUIC\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306b\u5931\u6557\u3057\u305f\u308a\u3001UDP\u304c\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u305f\u5834\u5408\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306fHTTP\/2\u307e\u305f\u306f1.1\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\u3002\u7279\u5b9a\u306eASN\u3084\u56fd\u3067\u306e\u969c\u5bb3\u3092\u660e\u3089\u304b\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u305d\u306e\u7406\u7531\uff08\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u30a8\u30e9\u30fc\uff09\u3092\u5225\u3005\u306b\u30ed\u30b0\u306b\u8a18\u9332\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u79fb\u884c\u306f\u30d3\u30c3\u30b0\u30d0\u30f3\u3067\u306f\u306a\u304f\u3001\u5236\u5fa1\u3055\u308c\u305f\u5b66\u7fd2\u30d7\u30ed\u30bb\u30b9\u306b\u306a\u308b\u3002.<\/p>\n\n<h2>\u30b0\u30ed\u30fc\u30d0\u30eb\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u524a\u6e1b\uff1a\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3001\u30a8\u30c3\u30b8\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n<p>\u79c1\u306f\u3053\u3046\u3057\u3066\u3044\u308b\u3002 <strong>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8<\/strong> UDP\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u6700\u3082\u8fd1\u3044\u30a8\u30c3\u30b8\u306b\u5f15\u304d\u5bc4\u305b\u308b\u3002\u77ed\u3044\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u30bf\u30a4\u30e0\u306f\u3001\u30b8\u30c3\u30bf\u30fc\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u3057\u3001\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u30eb\u30fc\u30c8\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002TCP\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001TCP\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u6d77\u3092\u8d8a\u3048\u3066\u4f1d\u308f\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u5730\u57df\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u30b9\u30de\u30fc\u30c8\u306a\u30b8\u30aaDNS\u6226\u7565\u306b\u983c\u3063\u3066\u3044\u307e\u3059\u3002QUIC\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u3082\u512a\u308c\u3066\u3044\u308b\u3002 <strong>\u63a5\u7d9a\u306e\u79fb\u884c<\/strong>\u30e6\u30fc\u30b6\u30fc\u304cWi-Fi\u304b\u30895G\u306b\u5207\u308a\u66ff\u3048\u3066\u3082\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3ID\u306e\u304a\u304b\u3052\u3067\u63a5\u7d9a\u306f\u7dad\u6301\u3055\u308c\u3001\u518d\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u3053\u3068\u306a\u304f\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u30ed\u30fc\u30c9\u3055\u308c\u7d9a\u3051\u308b\u3002.<\/p>\n\n<p>\u8f38\u9001\u30ec\u30d9\u30eb\u3067\u306f\u3001\u9069\u5207\u306a\u3082\u306e\u3092\u9078\u629e\u3059\u308b\u3002 <strong>\u8f3b\u8f33\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/strong> \u9818\u57df\u3042\u305f\u308a\u3002\u5e2f\u57df\u5e45\u306e\u9045\u5ef6\u7a4d\u304c\u5927\u304d\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001BBR\u306e\u65b9\u304c\u6027\u80fd\u304c\u826f\u3044\u3053\u3068\u304c\u591a\u3044\u304c\u3001CUBIC\u306f\u6df7\u5408\u30d1\u30b9\u3067\u3082\u5b89\u5b9a\u3057\u305f\u307e\u307e\u3067\u3042\u308b\u3002\u9078\u629e\u306f\u30c7\u30fc\u30bf\u99c6\u52d5\u578b\u3067\u3042\u308b\uff1a\u79c1\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u3001p95\/p99\u306e\u9045\u5ef6\u3001\u640d\u5931\u7387\u3001\u304a\u3088\u3073\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8\u3092\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u3068\u30ea\u30fc\u30b8\u30e7\u30f3\u5225\u306b\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u6e2c\u5b9a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\uff1a\u518d\u73fe\u53ef\u80fd\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/h2>\n\n<p>\u79c1\u306f\u73fe\u5b9f\u3092\u53cd\u6620\u3057\u305f\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u3002\u305d\u306e\u305f\u3081\u306b <strong>\u751f\u306e\u30d1\u30b9<\/strong> \u79c1\u306fiperf\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\uff08TCP\/UDP\uff09\u3092\u4f7f\u3044\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u640d\u5931\u3001\u9045\u5ef6\u3001\u4e26\u3073\u66ff\u3048\u3092\u5909\u5316\u3055\u305b\u308b\u3002\u305d\u306e\u305f\u3081\u306b <strong>\u30a6\u30a7\u30d6\u30b9\u30bf\u30c3\u30af<\/strong> \u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8\u3068\u30a6\u30a9\u30fc\u30e0\u30b9\u30bf\u30fc\u30c8\u3092\u5206\u3051\uff08DNS\u3001TLS\u3001H\/2\u3068H\/3\uff09\u3001TTFB\u3001LCP\u3001\u30ed\u30b9\u6642\u306e\u6700\u521d\u306e\u30d0\u30a4\u30c8\u307e\u3067\u306e\u6642\u9593\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u3002\u8ca0\u8377\u3068\u8f3b\u8f33\u306e\u6319\u52d5\u304c\u898b\u3048\u308b\u3088\u3046\u306b\u3001\u7570\u306a\u308b\u30ad\u30e3\u30ea\u30a2\u3068\u6642\u9593\u5e2f\u3067\u5408\u6210\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u884c\u3059\u308b\u3002.<\/p>\n\n<p>\u79c1\u306f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6761\u4ef6\u3092\u8a18\u9332\u3057\u3066\u3044\u308b\uff1aMTU\u3001MSS\u3001\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\u3001CPU\u5468\u6ce2\u6570\u3001\u30ab\u30fc\u30cd\u30eb\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u8f3b\u8f33\u5236\u5fa1\u3001TLS\u6697\u53f7\u3001\u30aa\u30d5\u30ed\u30fc\u30c9\u8a2d\u5b9a\u3002\u3053\u308c\u306f\u3001\u6bd4\u8f03\u304c\u6709\u52b9\u3067\u3042\u308a\u7d9a\u3051\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u552f\u4e00\u306e\u65b9\u6cd5\u3067\u3042\u308b\u3002\u79c1\u306f\u3001\u5e73\u5747\u5024\u3060\u3051\u3067\u306a\u304f\u3001p50\u3001p90\u3001p99\u3001\u305d\u3057\u3066 \u201eWorst 1% \u201c\u3068\u3044\u3063\u305f\u5206\u5e03\u3067\u3082\u7d50\u679c\u3092\u8a55\u4fa1\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3067\u306f\u3001\u30ed\u30f3\u30b0\u30c6\u30fc\u30eb\u304c\u3069\u308c\u3060\u3051\u5b89\u5b9a\u3057\u3066\u3044\u308b\u304b\u304c\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n<h2>\u904b\u7528\u7ba1\u7406\uff1aSLO\u3001\u52a3\u5316\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h2>\n\n<p>\u4e00\u7dd2\u306b\u4ed5\u4e8b\u3092\u3057\u3066\u3044\u308b <strong>SLO<\/strong> \u30ea\u30fc\u30c1\u30e3\u30d3\u30ea\u30c6\u30a3\u3068\u30ec\u30a4\u30c6\u30f3\u30b7(\u4f8b\u3048\u3070p95 TTFB\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u3054\u3068\u306e\u30a8\u30e9\u30fc\u30ec\u30fc\u30c8)\u3002\u30a8\u30e9\u30fc\u30d0\u30b8\u30a7\u30c3\u30c8\u306f\u3001\u5b9f\u9a13\uff08\u65b0\u3057\u3044QUIC\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u4ed6\u306e\u30bf\u30a4\u30de\u30fc\uff09\u306e\u305f\u3081\u306e\u64cd\u4f5c\u306e\u4f59\u5730\u3092\u4e0e\u3048\u3066\u304f\u308c\u308b\u3002\u30d0\u30b8\u30a7\u30c3\u30c8\u304c\u7e2e\u5c0f\u3057\u305f\u3089\u3001\u6a5f\u80fd\u3092\u5207\u308a\u66ff\u3048\u305f\u308a\u3001\u30d0\u30c3\u30d5\u30a1\u3092\u5897\u3084\u3057\u305f\u308a\u3001CDN\u3092\u7d4c\u7531\u3057\u3066\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u7d5e\u3063\u305f\u30ea\u30ea\u30fc\u30d5\u3092\u884c\u3046\u3002.<\/p>\n\n<p>\u306e\u305f\u3081\u306b <strong>\u52a3\u5316<\/strong> TCP\u306e\u30d0\u30c3\u30af\u30ed\u30b0\u306b\u5bfe\u3057\u3066\u306f\u3001\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u3092\u77ed\u304f\u3059\u308b\u304b\u3001\u30a2\u30af\u30bb\u30d7\u30c8\u30d0\u30c3\u30af\u30ed\u30b0\u3092\u5897\u3084\u3057\u3001\u5f85\u6a5f\u30eb\u30fc\u30d7\u3092\u6709\u52b9\u306b\u3059\u308b\u3002UDP\u3078\u306e\u653b\u6483\u3084\u30b9\u30d1\u30a4\u30af\u304c\u540c\u6642\u306bTCP API\u3092\u8972\u308f\u306a\u3044\u3088\u3046\u306b\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u306b\u5fdc\u3058\u3066\u30ec\u30fc\u30c8\u5236\u9650\u3092\u5206\u3051\u3066\u3044\u308b\u3002\u539f\u5247\u306f\u201e<strong>\u30bb\u30fc\u30d5\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/strong>\u201c:\u305f\u3068\u3048\u3059\u3079\u3066\u306e\u6a5f\u80fd\u304c\u6709\u52b9\u3067\u306a\u304f\u3066\u3082\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30b4\u30fc\u30eb\u3092\u9054\u6210\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/03\/tcp-udp-hosting-vergleich-4728.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u5b9f\u8df5\u4f8b\uff1a\u4ed5\u4e8b\u91cf\u306b\u5fdc\u3058\u3066\u671f\u5f85\u3055\u308c\u308b\u52b9\u679c<\/h2>\n\n<p><strong>\u30b7\u30e7\u30c3\u30d7\u30fb\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9<\/strong>HTTP\/3\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306e\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u6642\u9593\u3092\u3001\u7279\u306b\u640d\u5931\u306e\u4e0b\u3067\u9855\u8457\u306b\u6e1b\u3089\u3057\u307e\u3059\u3002\u4e00\u8cab\u6027\u3068\u51aa\u7b49\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8API\u306b\u306fTCP\u304c\u8a2d\u5b9a\u3055\u308c\u305f\u307e\u307e\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u3088\u308a\u8fc5\u901f\u306a\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u52a3\u60aa\u306a\u30ef\u30a4\u30e4\u30ec\u30b9\u74b0\u5883\u3067\u306e\u30ad\u30e3\u30f3\u30bb\u30eb\u304c\u6e1b\u5c11\u3057\u307e\u3057\u305f\u3002.<\/p>\n\n<p><strong>\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30fb\u30a8\u30c3\u30b8<\/strong>UDP\u30d9\u30fc\u30b9\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u4f4e\u3044CPU\u8ca0\u8377\u3067\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u306a\u30d5\u30ed\u30fc\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u30a2\u30c0\u30d7\u30c6\u30a3\u30d6\u30fb\u30d3\u30c3\u30c8\u30ec\u30fc\u30c8\u3068\u30d1\u30b1\u30c3\u30c8\u306b\u8fd1\u3044\u30a8\u30e9\u30fc\u8a02\u6b63\u306b\u3088\u308a\u30011-3%\u306e\u30ed\u30b9\u3067\u3082\u518d\u751f\u304c\u5b89\u5b9a\u3057\u307e\u3059\u3002\u304d\u308c\u3044\u306a\u30ec\u30fc\u30c8\u3068\u30da\u30fc\u30b7\u30f3\u30b0\u306e\u7ba1\u7406\u306f\u3001\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u304c\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u305b\u305a\u3001\u30b8\u30c3\u30bf\u30fc\u304c\u4f4e\u304f\u4fdd\u305f\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n<p><strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30fb\u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3<\/strong>\u30e1\u30c7\u30a3\u30a2\u30b9\u30c8\u30ea\u30fc\u30e0\u306fUDP\/QUIC\u7d4c\u7531\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30c1\u30e3\u30f3\u30cd\u30eb\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u540c\u671f\u306fTCP\u7d4c\u7531\u3002\u30e1\u30c7\u30a3\u30a2\u30d1\u30b1\u30c3\u30c8\u306b\u306fDSCP\u3067\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5074\u3067\u5206\u96e2\u3057\u3066\u3044\u308b\u3002UDP\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001\u5197\u9577\u5316\u3055\u308c\u305fTCP\u7d4c\u7531\u306e\u4f4e\u54c1\u8cea\u306b\u5207\u308a\u66ff\u3048\u3066\u3001\u901a\u4fe1\u304c\u7dad\u6301\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<p><strong>\u30b2\u30fc\u30df\u30f3\u30b0<\/strong>\u30b9\u30c6\u30fc\u30c8\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306fUDP\u7d4c\u7531\u3001\u30de\u30c3\u30c1\u30e1\u30a4\u30ad\u30f3\u30b0\/\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u30fc\u306fTCP\u7d4c\u7531\u3002\u30a2\u30f3\u30c1\u30c1\u30fc\u30c8\u3068\u30c6\u30ec\u30e1\u30c8\u30ea\u30fc\u306f\u3001\u30b9\u30d1\u30a4\u30af\u304c\u6df7\u3056\u3089\u306a\u3044\u3088\u3046\u306b\u5225\u3005\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306f\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u30b8\u30e3\u30f3\u30d7\u304c\u30e9\u30d0\u30fc\u30d0\u30f3\u30c7\u30a3\u30f3\u30b0\u306b\u3064\u306a\u304c\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u30c6\u30a3\u30c3\u30af\u30ec\u30fc\u30c8\u3068\u30d0\u30c3\u30d5\u30a1\u3092\u53b3\u5bc6\u306b\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068<\/h2>\n\n<p>\u79c1\u304c\u9078\u3076 <strong>TCP<\/strong>, \u5b8c\u5168\u6027\u3001\u30aa\u30fc\u30c0\u30fc\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u304c\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u3001\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3068\u304d <strong>UDP<\/strong> \u9045\u5ef6\u3068\u5747\u4e00\u6027\u304c\u652f\u914d\u3059\u308b\u3068\u304d\u3002QUIC\u4e0a\u306eHTTP\/3\u306f\u3001\u305d\u306e\u4e21\u65b9\u3092\u5de7\u307f\u306b\u7d44\u307f\u5408\u308f\u305b\u3001\u640d\u5931\u304c\u767a\u751f\u3057\u3066\u3082\u30da\u30fc\u30b8\u3092\u4fca\u654f\u306b\u4fdd\u3061\u307e\u3059\u3002\u8f3b\u8f33\u30b9\u30c8\u30e9\u30c6\u30b8\u30fc\u3001\u30ec\u30fc\u30c8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3001\u30af\u30ea\u30fc\u30f3\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u3088\u308a\u3001\u79c1\u306f\u4e21\u65b9\u306e\u4e16\u754c\u304b\u3089\u6700\u9ad8\u306e\u3082\u306e\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002WAF\u3001\u5236\u9650\u3001\u30af\u30ea\u30fc\u30f3\u30fb\u30dd\u30fc\u30c8\u30fb\u30dd\u30ea\u30b7\u30fc\u306b\u3088\u308a\u3001\u904b\u7528\u306f\u5b89\u5168\u3067\u3059\u3002\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u9069\u5207\u306b\u5272\u308a\u5f53\u3066\u308c\u3070\u3001\u5f85\u3061\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u3001\u30ea\u30bd\u30fc\u30b9\u304c\u7bc0\u7d04\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u30fb\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u9855\u8457\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>TCP\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3068UDP\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5206\u91ce\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6bd4\u8f03\u3002\u30b5\u30fc\u30d0\u30fc\u306b\u6700\u9069\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u6700\u5c0f\u5316\u3059\u308b\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3002.<\/p>","protected":false},"author":1,"featured_media":18411,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_crdt_document":"","inline_featured_image":false,"footnotes":""},"categories":[922],"tags":[],"class_list":["post-18418","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologie"],"acf":[],"_wp_attached_file":null,"_wp_attachment_metadata":null,"litespeed-optimize-size":null,"litespeed-optimize-set":null,"_elementor_source_image_hash":null,"_wp_attachment_image_alt":null,"stockpack_author_name":null,"stockpack_author_url":null,"stockpack_provider":null,"stockpack_image_url":null,"stockpack_license":null,"stockpack_license_url":null,"stockpack_modification":null,"color":null,"original_id":null,"original_url":null,"original_link":null,"unsplash_location":null,"unsplash_sponsor":null,"unsplash_exif":null,"unsplash_attachment_metadata":null,"_elementor_is_screenshot":null,"surfer_file_name":null,"surfer_file_original_url":null,"envato_tk_source_kit":null,"envato_tk_source_index":null,"envato_tk_manifest":null,"envato_tk_folder_name":null,"envato_tk_builder":null,"envato_elements_download_event":null,"_menu_item_type":null,"_menu_item_menu_item_parent":null,"_menu_item_object_id":null,"_menu_item_object":null,"_menu_item_target":null,"_menu_item_classes":null,"_menu_item_xfn":null,"_menu_item_url":null,"_trp_menu_languages":null,"rank_math_primary_category":null,"rank_math_title":null,"inline_featured_image":null,"_yoast_wpseo_primary_category":null,"rank_math_schema_blogposting":null,"rank_math_schema_videoobject":null,"_oembed_049c719bc4a9f89deaead66a7da9fddc":null,"_oembed_time_049c719bc4a9f89deaead66a7da9fddc":null,"_yoast_wpseo_focuskw":null,"_yoast_wpseo_linkdex":null,"_oembed_27e3473bf8bec795fbeb3a9d38489348":null,"_oembed_c3b0f6959478faf92a1f343d8f96b19e":null,"_trp_translated_slug_en_us":null,"_wp_desired_post_slug":null,"_yoast_wpseo_title":null,"tldname":null,"tldpreis":null,"tldrubrik":null,"tldpolicylink":null,"tldsize":null,"tldregistrierungsdauer":null,"tldtransfer":null,"tldwhoisprivacy":null,"tldregistrarchange":null,"tldregistrantchange":null,"tldwhoisupdate":null,"tldnameserverupdate":null,"tlddeletesofort":null,"tlddeleteexpire":null,"tldumlaute":null,"tldrestore":null,"tldsubcategory":null,"tldbildname":null,"tldbildurl":null,"tldclean":null,"tldcategory":null,"tldpolicy":null,"tldbesonderheiten":null,"tld_bedeutung":null,"_oembed_d167040d816d8f94c072940c8009f5f8":null,"_oembed_b0a0fa59ef14f8870da2c63f2027d064":null,"_oembed_4792fa4dfb2a8f09ab950a73b7f313ba":null,"_oembed_33ceb1fe54a8ab775d9410abf699878d":null,"_oembed_fd7014d14d919b45ec004937c0db9335":null,"_oembed_21a029d076783ec3e8042698c351bd7e":null,"_oembed_be5ea8a0c7b18e658f08cc571a909452":null,"_oembed_a9ca7a298b19f9b48ec5914e010294d2":null,"_oembed_f8db6b27d08a2bb1f920e7647808899a":null,"_oembed_168ebde5096e77d8a89326519af9e022":null,"_oembed_cdb76f1b345b42743edfe25481b6f98f":null,"_oembed_87b0613611ae54e86e8864265404b0a1":null,"_oembed_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_oembed_time_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_tldname":null,"_tldclean":null,"_tldpreis":null,"_tldcategory":null,"_tldsubcategory":null,"_tldpolicy":null,"_tldpolicylink":null,"_tldsize":null,"_tldregistrierungsdauer":null,"_tldtransfer":null,"_tldwhoisprivacy":null,"_tldregistrarchange":null,"_tldregistrantchange":null,"_tldwhoisupdate":null,"_tldnameserverupdate":null,"_tlddeletesofort":null,"_tlddeleteexpire":null,"_tldumlaute":null,"_tldrestore":null,"_tldbildname":null,"_tldbildurl":null,"_tld_bedeutung":null,"_tldbesonderheiten":null,"_oembed_ad96e4112edb9f8ffa35731d4098bc6b":null,"_oembed_8357e2b8a2575c74ed5978f262a10126":null,"_oembed_3d5fea5103dd0d22ec5d6a33eff7f863":null,"_eael_widget_elements":null,"_oembed_0d8a206f09633e3d62b95a15a4dd0487":null,"_oembed_time_0d8a206f09633e3d62b95a15a4dd0487":null,"_aioseo_description":null,"_eb_attr":null,"_eb_data_table":null,"_oembed_819a879e7da16dd629cfd15a97334c8a":null,"_oembed_time_819a879e7da16dd629cfd15a97334c8a":null,"_acf_changed":null,"_wpcode_auto_insert":null,"_edit_last":null,"_edit_lock":null,"_oembed_e7b913c6c84084ed9702cb4feb012ddd":null,"_oembed_bfde9e10f59a17b85fc8917fa7edf782":null,"_oembed_time_bfde9e10f59a17b85fc8917fa7edf782":null,"_oembed_03514b67990db061d7c4672de26dc514":null,"_oembed_time_03514b67990db061d7c4672de26dc514":null,"rank_math_news_sitemap_robots":null,"rank_math_robots":null,"_eael_post_view_count":"574","_trp_automatically_translated_slug_ru_ru":null,"_trp_automatically_translated_slug_et":null,"_trp_automatically_translated_slug_lv":null,"_trp_automatically_translated_slug_fr_fr":null,"_trp_automatically_translated_slug_en_us":null,"_wp_old_slug":null,"_trp_automatically_translated_slug_da_dk":null,"_trp_automatically_translated_slug_pl_pl":null,"_trp_automatically_translated_slug_es_es":null,"_trp_automatically_translated_slug_hu_hu":null,"_trp_automatically_translated_slug_fi":null,"_trp_automatically_translated_slug_ja":null,"_trp_automatically_translated_slug_lt_lt":null,"_elementor_edit_mode":null,"_elementor_template_type":null,"_elementor_version":null,"_elementor_pro_version":null,"_wp_page_template":null,"_elementor_page_settings":null,"_elementor_data":null,"_elementor_css":null,"_elementor_conditions":null,"_happyaddons_elements_cache":null,"_oembed_75446120c39305f0da0ccd147f6de9cb":null,"_oembed_time_75446120c39305f0da0ccd147f6de9cb":null,"_oembed_3efb2c3e76a18143e7207993a2a6939a":null,"_oembed_time_3efb2c3e76a18143e7207993a2a6939a":null,"_oembed_59808117857ddf57e478a31d79f76e4d":null,"_oembed_time_59808117857ddf57e478a31d79f76e4d":null,"_oembed_965c5b49aa8d22ce37dfb3bde0268600":null,"_oembed_time_965c5b49aa8d22ce37dfb3bde0268600":null,"_oembed_81002f7ee3604f645db4ebcfd1912acf":null,"_oembed_time_81002f7ee3604f645db4ebcfd1912acf":null,"_elementor_screenshot":null,"_oembed_7ea3429961cf98fa85da9747683af827":null,"_oembed_time_7ea3429961cf98fa85da9747683af827":null,"_elementor_controls_usage":null,"_elementor_page_assets":[],"_elementor_screenshot_failed":null,"theplus_transient_widgets":null,"_eael_custom_js":null,"_wp_old_date":null,"_trp_automatically_translated_slug_it_it":null,"_trp_automatically_translated_slug_pt_pt":null,"_trp_automatically_translated_slug_zh_cn":null,"_trp_automatically_translated_slug_nl_nl":null,"_trp_automatically_translated_slug_pt_br":null,"_trp_automatically_translated_slug_sv_se":null,"rank_math_analytic_object_id":null,"rank_math_internal_links_processed":"1","_trp_automatically_translated_slug_ro_ro":null,"_trp_automatically_translated_slug_sk_sk":null,"_trp_automatically_translated_slug_bg_bg":null,"_trp_automatically_translated_slug_sl_si":null,"litespeed_vpi_list":null,"litespeed_vpi_list_mobile":null,"rank_math_seo_score":null,"rank_math_contentai_score":null,"ilj_limitincominglinks":null,"ilj_maxincominglinks":null,"ilj_limitoutgoinglinks":null,"ilj_maxoutgoinglinks":null,"ilj_limitlinksperparagraph":null,"ilj_linksperparagraph":null,"ilj_blacklistdefinition":null,"ilj_linkdefinition":null,"_eb_reusable_block_ids":null,"rank_math_focus_keyword":"TCP vs UDP Hosting","rank_math_og_content_image":null,"_yoast_wpseo_metadesc":null,"_yoast_wpseo_content_score":null,"_yoast_wpseo_focuskeywords":null,"_yoast_wpseo_keywordsynonyms":null,"_yoast_wpseo_estimated-reading-time-minutes":null,"rank_math_description":null,"surfer_last_post_update":null,"surfer_last_post_update_direction":null,"surfer_keywords":null,"surfer_location":null,"surfer_draft_id":null,"surfer_permalink_hash":null,"surfer_scrape_ready":null,"_thumbnail_id":"18411","footnotes":null,"_links":{"self":[{"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/posts\/18418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/comments?post=18418"}],"version-history":[{"count":0,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/posts\/18418\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/media\/18411"}],"wp:attachment":[{"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/media?parent=18418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/categories?post=18418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webhosting.de\/ja\/wp-json\/wp\/v2\/tags?post=18418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}