\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u30ea\u30d4\u30fc\u30bf\u30fc\u306e\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3092\u6539\u5584\u3059\u308b\u306e\u304b\uff1f
\n\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306e\u8981\u7d20\uff08\u753b\u50cf\u3001CSS\u3001JavaScript\u30d5\u30a1\u30a4\u30eb\u306a\u3069\uff09\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3001\u540c\u3058\u30da\u30fc\u30b8\u3092\u518d\u5ea6\u8a2a\u308c\u305f\u969b\u306b\u3001\u305d\u308c\u3089\u306e\u8981\u7d20\u3092\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u518d\u5ea6\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u305b\u305a\u306b\u6e08\u3080\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u5927\u5e45\u306b\u6539\u5584\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306b\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u30ea\u30d4\u30fc\u30bf\u30fc\u306e\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3092\u6539\u5584\u3059\u308b\u7406\u7531\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8ca0\u8377\u306e\u8efd\u6e1b
\n\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u540c\u3058\u30ea\u30bd\u30fc\u30b9\u3092\u4f55\u5ea6\u3082\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u7279\u306b\u30ea\u30bd\u30fc\u30b9\u304c\u5927\u5bb9\u91cf\u3067\u3042\u308b\u5834\u5408\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5e2f\u57df\u306e\u4f7f\u7528\u3092\u6291\u3048\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u8ca0\u62c5\u3092\u8efd\u6e1b\u3059\u308b\u52b9\u679c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30ea\u30d4\u30fc\u30bf\u30fc\u306f\u30da\u30fc\u30b8\u3092\u518d\u5ea6\u8a2a\u308c\u305f\u969b\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6e1b\u5c11\u3057\u3001\u30da\u30fc\u30b8\u306e\u30ed\u30fc\u30c9\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u306e\u9ad8\u901f\u30a2\u30af\u30bb\u30b9
\n\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6709\u52b9\u3067\u3042\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3092\u30ed\u30fc\u30ab\u30eb\u30c7\u30a3\u30b9\u30af\u304b\u3089\u8fc5\u901f\u306b\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u6bd4\u3079\u3066\u306f\u308b\u304b\u306b\u9ad8\u901f\u3067\u3059\u3002<\/p>\n
\u30ed\u30fc\u30ab\u30eb\u30c7\u30a3\u30b9\u30af\u306eI\/O\u64cd\u4f5c\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u64cd\u4f5c\u3088\u308a\u3082\u9065\u304b\u306b\u901f\u3044\u305f\u3081\u3001\u3053\u308c\u304c\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306e\u5411\u4e0a\u306b\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n
\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u52b9\u7387\u5316
\n\u30d6\u30e9\u30a6\u30b6\u306f\u30da\u30fc\u30b8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u969b\u306b\u3001\u753b\u50cf\u3084\u30b9\u30bf\u30a4\u30eb\u30b7\u30fc\u30c8\u306a\u3069\u306e\u5fc5\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u3092\u5f85\u305f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u3053\u308c\u3089\u306e\u30ea\u30bd\u30fc\u30b9\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u3059\u3050\u306b\u958b\u59cb\u3067\u304d\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u7d20\u65e9\u304f\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306e\u5411\u4e0a\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<\/p>\n
HTTP\u30d8\u30c3\u30c0\u306b\u3088\u308b\u5236\u5fa1
\n\u958b\u767a\u8005\u306fHTTP\u30d8\u30c3\u30c0\uff08\u4f8b\u3000Cache-Control, Expires, ETag\u306a\u3069\uff09\u3092\u4f7f\u7528\u3057\u3066\u5404\u30ea\u30bd\u30fc\u30b9\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30ea\u30b7\u30fc\u3092\u8a73\u7d30\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6301\u7d9a\u6642\u9593\u3092\u8a2d\u5b9a\u3057\u3001\u6b21\u56de\u306e\u8a2a\u554f\u6642\u306b\u53e4\u3044\u30ea\u30bd\u30fc\u30b9\u304c\u518d\u5229\u7528\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u6700\u65b0\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5229\u70b9\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u6839\u62e0
\n\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u679c\u306f\u3001\u5b9f\u969b\u306e\u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8\u3067\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001Google\u306a\u3069\u306e\u5927\u624b\u4f01\u696d\u304c\u63d0\u4f9b\u3059\u308b\u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c4\u30fc\u30eb\uff08Google PageSpeed Insights\u306a\u3069\uff09\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u901f\u5ea6\u6539\u5584\u306e\u5177\u4f53\u7684\u306a\u6570\u5024\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u591a\u304f\u306e\u30a6\u30a7\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5c02\u9580\u5bb6\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30d6\u30ed\u30b0\u3001\u6280\u8853\u66f8\u306b\u304a\u3044\u3066\u3082\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3057\u305f\u6700\u9069\u5316\u624b\u6cd5\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u306e\u60c5\u5831\u306f\u3001\u5b9f\u7e3e\u306b\u57fa\u3065\u304f\u3082\u306e\u3067\u3042\u308a\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\u304c\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u6709\u52b9\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u6839\u62e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30ea\u30d4\u30fc\u30bf\u30fc\u306b\u5bfe\u3057\u3066\u8fc5\u901f\u304b\u3064\u52b9\u7387\u7684\u306a\u30da\u30fc\u30b8\u30ed\u30fc\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u6280\u8853\u3067\u3042\u308a\u3001\u9069\u5207\u306a\u8a2d\u5b9a\u306b\u3088\u308a\u30a6\u30a7\u30d6\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u624b\u6bb5\u3067\u3059\u3002<\/p>\n
\u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\u306e\u65b9\u6cd5\u3068\u3001\u4e00\u822c\u7684\u306b\u907f\u3051\u308b\u3079\u304d\u8aa4\u308a\u306f\u4f55\u304b\uff1f
\n\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u9069\u5207\u306a\u8a2d\u5b9a\u306f\u3001Web\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u518d\u5ea6\u30da\u30fc\u30b8\u3092\u8a2a\u308c\u305f\u969b\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30c7\u30fc\u30bf\u3092\u518d\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u3092\u6e1b\u3089\u3057\u3001\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3092\u5287\u7684\u306b\u6539\u5584\u3057\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306b\u3001\u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\u306e\u65b9\u6cd5\u3068\u4e00\u822c\u7684\u306b\u907f\u3051\u308b\u3079\u304d\u8aa4\u308a\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u9069\u5207\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\u306e\u65b9\u6cd5<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u30d8\u30c3\u30c0\u30fc\u306e\u8a2d\u5b9a<\/p>\n
Cache-Control \u30ea\u30bd\u30fc\u30b9\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001max-age=3600\u306f\u30ea\u30bd\u30fc\u30b9\u30921\u6642\u9593\uff083600\u79d2\uff09\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001public\uff08\u3069\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3082\u4fdd\u5b58\u53ef\u80fd\uff09\u3001private\uff08\u30e6\u30fc\u30b6\u30fc\u5c02\u7528\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306e\u307f\u4fdd\u5b58\uff09\u3001no-cache\uff08\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u53ef\u80fd\u3060\u304c\u6bce\u56de\u518d\u691c\u8a3c\u304c\u5fc5\u8981\uff09\u306a\u3069\u306e\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
Expires \u5c06\u6765\u306e\u65e5\u4ed8\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u65e5\u4ed8\u307e\u3067\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u30b3\u30d4\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u304c\u3001Cache-Control\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u305d\u3061\u3089\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u3002<\/p>\n
ETag\u306e\u4f7f\u7528<\/p>\n
ETag\u306f\u30ea\u30bd\u30fc\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30bf\u30b0\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306f\u3053\u308c\u3092\u4f7f\u3063\u3066\u30ea\u30bd\u30fc\u30b9\u304c\u5909\u66f4\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6642\u306bETag\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u30ea\u30bd\u30fc\u30b9\u5909\u66f4\u304c\u306a\u3044\u5834\u5408\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u671f\u9650\u306e\u9577\u3055<\/p>\n
\u9759\u7684\u30d5\u30a1\u30a4\u30eb\uff08\u753b\u50cf\u3001CSS\u3001JavaScript\u306a\u3069\uff09\u306f\u9577\u671f\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3088\u3046\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u4e00\u65b9\u3067\u3001\u983b\u7e41\u306b\u66f4\u65b0\u3055\u308c\u308b\u30ea\u30bd\u30fc\u30b9\u306f\u77ed\u671f\u9593\u3082\u3057\u304f\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044\u8a2d\u5b9a\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u3002<\/p>\n
\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u5c0e\u5165<\/p>\n
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\u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u8aa4\u308a<\/p>\n
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\u4e0d\u9069\u5207\u306aCache-Control\u8a2d\u5b9a\uff08\u4f8b no-store\u3092\u8a2d\u5b9a\u3057\u3066\u5168\u304f\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044\uff09\u306f\u3001\u3059\u3079\u3066\u306e\u8a2a\u554f\u6642\u306b\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002<\/p>\n
\u77ed\u3059\u304e\u308b\u6709\u52b9\u671f\u9650<\/p>\n
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ETag\u306e\u4e0d\u9069\u5207\u306a\u4f7f\u7528<\/p>\n
\u4e0d\u5fc5\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u306bETag\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n
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\u6839\u62e0<\/p>\n
\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3068SEO\u306e\u95a2\u4fc2
\n\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306fSEO\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u8981\u7d20\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n
Google\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u826f\u3044\u30b5\u30a4\u30c8\u3092\u512a\u5148\u3057\u3066\u30e9\u30f3\u30ad\u30f3\u30b0\u3059\u308b\u305f\u3081\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u679c\u7684\u306a\u5229\u7528\u306fSEO\u306b\u3082\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n
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\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u306e\u8efd\u6e1b
\n\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u304c\u524a\u6e1b\u3055\u308c\u3001\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n
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\u6839\u62e0<\/p>\n
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\u307e\u305f\u3001HTTP \u30d8\u30c3\u30c0\u30fc\u306e\u8a2d\u5b9a\uff08\u4f8b Cache-Control, Expires\uff09\u306b\u3088\u308a\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
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