\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6700\u9069\u5316\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f
\n\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u3068\u306f\u3001\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30a6\u30a7\u30d6\u30b5\u30fc\u30d3\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\u30fb\u8abf\u6574\u3059\u308b\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30c7\u30fc\u30bf\u306e\u4fdd\u5b58\u304a\u3088\u3073\u30ea\u30c8\u30ea\u30fc\u30d6\u3092\u8fc5\u901f\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001\u901a\u5e38\u306f\u30b5\u30fc\u30d0\u30fc\u306b\u8ca0\u8377\u3092\u304b\u3051\u308b\u3053\u3068\u306a\u304f\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u305f\u3081\u306b\u6d3b\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7a2e\u985e\u3068\u305d\u306e\u5f79\u5272<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5 \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3002<\/p>\n
\u30a6\u30a7\u30d6\u30d6\u30e9\u30a6\u30b6\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30ea\u30bd\u30fc\u30b9\uff08CSS\u3001JavaScript\u3001\u753b\u50cf\u306a\u3069\uff09\u3092\u4fdd\u5b58\u3057\u3001\u6b21\u56de\u306e\u30a2\u30af\u30bb\u30b9\u6642\u306b\u518d\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u907f\u3051\u308b\u3002<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5 \u30b5\u30fc\u30d0\u30fc\u4e0a\u3067\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u306e\u7d50\u679c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3001\u6b21\u56de\u306e\u8981\u6c42\u6642\u306b\u518d\u51e6\u7406\u3092\u56de\u907f\u3002<\/p>\n
CDN\u30ad\u30e3\u30c3\u30b7\u30e5 \u30b3\u30f3\u30c6\u30f3\u30c4\u30c7\u30ea\u30d0\u30ea\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u914d\u7f6e\u3055\u308c\u305f\u30b5\u30fc\u30d0\u30fc\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u5730\u7406\u7684\u306b\u6700\u3082\u8fd1\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u304b\u3089\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u63d0\u4f9b\u3002<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306e\u65b9\u6cd5<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a \u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3057\u3001\u5404\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u751f\u5b58\u671f\u9593\uff08TTL Time To Live\uff09\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/p>\n
HTTP\u30d8\u30c3\u30c0\u30fc\uff08\u4f8b\u3048\u3070\u3001Cache-Control\u3084ETag\uff09\u3092\u4f7f\u7528\u3057\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7ba1\u7406\u3092\u884c\u3046\u3002<\/p>\n
\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u6700\u9069\u5316 \u30ad\u30e3\u30c3\u30b7\u30e5\u30b9\u30c8\u30ec\u30fc\u30b8\u304c\u52b9\u7387\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u7ba1\u7406\u3057\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u512a\u5148\u7684\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7121\u52b9\u5316\u3068\u66f4\u65b0 \u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u66f4\u65b0\u306b\u5fdc\u3058\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u307e\u305f\u306f\u66f4\u65b0\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u5c0e\u5165\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u5e38\u306b\u6700\u65b0\u306e\u60c5\u5831\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
CDN\u306e\u6d3b\u7528 CDN\u3092\u5229\u7528\u3057\u3066\u5730\u7406\u7684\u306b\u5206\u6563\u3057\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u7d20\u65e9\u304f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3002<\/p>\n
\u6839\u62e0\u3068\u5229\u70b9<\/p>\n
\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a \u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u308a\u30c7\u30fc\u30bf\u53d6\u5f97\u306e\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u6539\u5584\u3002<\/p>\n
\u30ea\u30bd\u30fc\u30b9\u306e\u52b9\u7387\u5316 \u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3057\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ea\u30bd\u30fc\u30b9\u3092\u52b9\u7387\u7684\u306b\u5229\u7528\u3002<\/p>\n
\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u5411\u4e0a \u5927\u898f\u6a21\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u5bfe\u3057\u3066\u3082\u8fc5\u901f\u306b\u5bfe\u5fdc\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u53ef\u7528\u6027\u3092\u78ba\u4fdd\u3002<\/p>\n
\u5f93\u6765\u306e\u6307\u6a19\u3068\u7814\u7a76<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u679c\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u306e\u6539\u5584\u3001\u5e2f\u57df\u5e45\u306e\u7bc0\u7d04\u3001\u30b5\u30fc\u30d0\u30fc\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u306e\u524a\u6e1b\u306a\u3069\u3067\u793a\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u7814\u7a76\u4e8b\u4f8b\u3068\u3057\u3066\u3001Facebook\u3084Netflix\u3068\u3044\u3063\u305f\u5927\u898f\u6a21\u30b5\u30fc\u30d3\u30b9\u304c\u72ec\u81ea\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u5927\u5e45\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u3092\u9054\u6210\u3057\u305f\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u6700\u7d42\u7684\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6700\u9069\u5316\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u65b9\u91dd\u3084\u7279\u5b9a\u306e\u30d3\u30b8\u30cd\u30b9\u30cb\u30fc\u30ba\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3055\u308c\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n
\u305d\u308c\u306b\u3088\u308a\u3001\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306b\u512a\u308c\u305f\u4f53\u9a13\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u904b\u7528\u30b3\u30b9\u30c8\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u306a\u305c\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u304c\u91cd\u8981\u306a\u306e\u3067\u3059\u304b\uff1f
\n\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306f\u3001\u73fe\u4ee3\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u306e\u7406\u7531\u3068\u6839\u62e0\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
1. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u969b\u306e\u5fdc\u7b54\u6642\u9593\u304c\u5927\u5e45\u306b\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u901a\u5e38\u3001\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u3084\u8907\u96d1\u306a\u8a08\u7b97\u7d50\u679c\u3092\u4e00\u6642\u4fdd\u5b58\u3059\u308b\u305f\u3081\u3001\u540c\u3058\u30c7\u30fc\u30bf\u3092\u518d\u5ea6\u8981\u6c42\u3055\u308c\u305f\u969b\u306b\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u304b\u3089\u76f4\u63a5\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n
2. \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u5f37\u5316<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u540c\u6642\u306b\u591a\u6570\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u3067\u3082\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u304c\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n
\u7279\u306b\u3001\u7a81\u767a\u7684\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5897\u52a0\uff08\u305f\u3068\u3048\u3070\u30bb\u30fc\u30eb\u958b\u59cb\u6642\u306a\u3069\uff09\u306b\u5bfe\u3057\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u52b9\u679c\u7684\u306b\u5fdc\u7b54\u901f\u5ea6\u3092\u6539\u5584\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u3088\u308a\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u540c\u6642\u306b\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u7d50\u679c\u7684\u306b\u30d3\u30b8\u30cd\u30b9\u306e\u62e1\u5927\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n
3. \u30b3\u30b9\u30c8\u306e\u524a\u6e1b<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u56de\u6570\u304c\u6e1b\u5c11\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u30ea\u30bd\u30fc\u30b9\u306e\u4f7f\u7528\u91cf\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3078\u306e\u8ca0\u8377\u3092\u6e1b\u5c11\u3055\u305b\u3001\u7d50\u679c\u7684\u306b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30b3\u30b9\u30c8\u524a\u6e1b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n
\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u91cf\u3084\u8a08\u7b97\u30ea\u30bd\u30fc\u30b9\u306e\u524a\u6e1b\u306b\u3088\u308a\u3001\u4f7f\u7528\u6599\u91d1\u306e\u524a\u6e1b\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n
4. \u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u3068\u6574\u5408\u6027<\/p>\n
\u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3057\u3064\u3064\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u7279\u306b\u3001\u4e00\u5ea6\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u304c\u983b\u7e41\u306b\u5909\u66f4\u3055\u308c\u306a\u3044\u5834\u5408\uff08\u9759\u7684\u30c7\u30fc\u30bf\uff09\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u5927\u3044\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n
\u6700\u65b0\u306e\u30c7\u30fc\u30bf\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u7b87\u6240\u3067\u306f\u3001\u9ad8\u983b\u5ea6\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528\u3059\u308b\u6226\u7565\u3092\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002<\/p>\n
5. \u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306e\u5411\u4e0a<\/p>\n
\u9ad8\u901f\u306a\u30da\u30fc\u30b8\u30ed\u30fc\u30c9\u306f\u76f4\u63a5\u7684\u306b\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n
\u4eba\u9593\u306f\u901a\u5e38\u3001\uff12\u79d2\u4ee5\u4e0a\u304b\u304b\u308b\u30da\u30fc\u30b8\u9077\u79fb\u306b\u5bfe\u3057\u3066\u30d5\u30e9\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u611f\u3058\u308b\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30da\u30fc\u30b8\u30ed\u30fc\u30c9\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u96e2\u8131\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u6839\u62e0<\/p>\n
\u3053\u308c\u3089\u306e\u30e1\u30ea\u30c3\u30c8\u306e\u6839\u62e0\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3000<\/p>\n
\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8 \u4f01\u696d\u306e\u591a\u304f\u306fAB\u30c6\u30b9\u30c8\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8\u3092\u7528\u3044\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u3068\u5229\u7528\u3057\u306a\u3044\u5834\u5408\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5dee\u3092\u8a08\u6e2c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u5f97\u3089\u308c\u308b\u52b9\u679c\u3092\u5b9a\u91cf\u7684\u306b\u8a55\u4fa1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u5b9f\u7e3e\u306e\u3042\u308b\u4e8b\u4f8b \u591a\u304f\u306e\u30c6\u30c3\u30af\u4f01\u696d\u3001\u4f8b\u3048\u3070Google\u3001Amazon\u3001Facebook\u306a\u3069\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528\u3057\u3066\u30b5\u30fc\u30d3\u30b9\u3092\u6700\u9069\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u4f01\u696d\u306e\u6210\u529f\u304b\u3089\u3082\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306e\u91cd\u8981\u6027\u304c\u4f3a\u3048\u307e\u3059\u3002<\/p>\n
\u7d71\u8a08\u30c7\u30fc\u30bf \u6570\u3005\u306e\u7814\u7a76\u3084\u8abf\u67fb\u5831\u544a\u306b\u304a\u3044\u3066\u3001\u9045\u3044\u30ed\u30fc\u30c9\u6642\u9593\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u96e2\u8131\u7387\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001\u30da\u30fc\u30b8\u30ed\u30fc\u30c9\u304c3\u79d2\u4ee5\u4e0a\u306b\u306a\u308b\u3068\u96e2\u8131\u7387\u304c\u6025\u4e0a\u6607\u3059\u308b\u3068\u3044\u3063\u305f\u30c7\u30fc\u30bf\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u8e0f\u307e\u3048\u305f\u3046\u3048\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306f\u30a6\u30a7\u30d6\u30b5\u30fc\u30d3\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u65bd\u7b56\u3067\u3042\u308b\u3053\u3068\u304c\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u9069\u5207\u306a\u5229\u7528\u304a\u3088\u3073\u7ba1\u7406\u306f\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30d3\u30b8\u30cd\u30b9\u306e\u6210\u529f\u306b\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304b\uff1f
\n\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6700\u9069\u5316\u306f\u3001Web\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u30da\u30fc\u30b8\u306e\u30ed\u30fc\u30c9\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u3068\u305d\u306e\u6839\u62e0\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
1. \u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306e\u9078\u629e<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7a2e\u985e \u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30aa\u30da\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u8cea\u306b\u5fdc\u3058\u3066\u3001\u3069\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3059\u308b\u304b\u9078\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u5fdc\u7b54\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u7121\u99c4\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
2. \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u306e\u8a2d\u5b9a<\/p>\n
TTL\uff08Time To Live\uff09\u8a2d\u5b9a \u30ad\u30e3\u30c3\u30b7\u30e5\u30c7\u30fc\u30bf\u304c\u3069\u306e\u304f\u3089\u3044\u306e\u6642\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u308b\u3079\u304d\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u52d5\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u306f\u77ed\u3081\u306eTTL\u3001\u5b89\u5b9a\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u306f\u9577\u3081\u306eTTL\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u53e4\u3044\u30c7\u30fc\u30bf\u304c\u4f7f\u7528\u3055\u308c\u7d9a\u3051\u308b\u306e\u3092\u9632\u304e\u3001\u5e38\u306b\u6700\u65b0\u306e\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n
3. \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6574\u5408\u6027\u306e\u78ba\u4fdd<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7121\u52b9\u5316\uff08\u30ad\u30e3\u30c3\u30b7\u30e5\u30d0\u30b9\u30c6\u30a3\u30f3\u30b0\uff09 \u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u66f4\u65b0\u3055\u308c\u305f\u969b\u306b\u3001\u53e4\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7121\u52b9\u5316\u3057\u6700\u65b0\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u624b\u6cd5\u3067\u3059\u3002<\/p>\n
\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3084\u30cf\u30c3\u30b7\u30e5\u3092\u7528\u3044\u3066\u3001\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u3042\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u30c7\u30fc\u30bf\u306e\u4e0d\u4e00\u81f4\u3092\u907f\u3051\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306a\u308f\u306a\u3044\u305f\u3081\u306b\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
4. \u5206\u6563\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5229\u7528<\/p>\n
CDN\uff08Content Delivery Network\uff09 \u5730\u7406\u7684\u306b\u5206\u6563\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u3092\u5229\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u6700\u5bc4\u308a\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30ed\u30fc\u30c9\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u5206\u6563\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9045\u5ef6\u304c\u6e1b\u5c11\u3057\u3001\u30b5\u30a4\u30c8\u306e\u5fdc\u7b54\u6027\u304c\u5411\u4e0a\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n
5. \u5b9a\u671f\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u30af\u30ea\u30a2\u30ea\u30f3\u30b0\u30eb\u30fc\u30eb \u4e0d\u8981\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u30eb\u30fc\u30eb\u3092\u5b9a\u671f\u7684\u306b\u8a2d\u5b9a\u3057\u3001\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u4e0d\u8981\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u308b\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u306e\u5897\u52a0\u3092\u9632\u3050\u3068\u3068\u3082\u306b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u53c2\u7167\u6642\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n
6. \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u5206\u6790<\/p>\n
\u30ed\u30b0\u89e3\u6790 \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u3084\u30df\u30b9\u7387\u3092\u5206\u6790\u3057\u3001\u5fc5\u8981\u306a\u6539\u5584\u70b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0 \u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6709\u52b9\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5ba2\u89b3\u7684\u306b\u8a55\u4fa1\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u9069\u5316\u306e\u6a5f\u4f1a\u3092\u5e38\u306b\u63a2\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
7. \u69cb\u6210\u3068\u6280\u8853\u306e\u6700\u9069\u5316<\/p>\n
HTTP\u30ad\u30e3\u30c3\u30b7\u30e5\u30d8\u30c3\u30c0\u30fc\u306e\u5229\u7528 Cache-Control \u3084 Expires \u30d8\u30c3\u30c0\u30fc\u306e\u8a2d\u5b9a\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n
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