\u753b\u50cf\u306e\u6700\u9069\u5316\u3068\u306f\u4f55\u3092\u6307\u3057\u3001\u3069\u306e\u3088\u3046\u306b\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306b\u5f71\u97ff\u3059\u308b\u306e\u304b\uff1f
\n\u753b\u50cf\u306e\u6700\u9069\u5316\u3068\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u4f7f\u7528\u3055\u308c\u308b\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u524a\u6e1b\u3057\u3064\u3064\u3001\u5fc5\u8981\u306a\u8996\u899a\u7684\u54c1\u8cea\u3092\u4fdd\u3064\u305f\u3081\u306b\u884c\u308f\u308c\u308b\u6280\u8853\u3084\u30d7\u30ed\u30bb\u30b9\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001\u753b\u50cf\u306e\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306e\u9078\u629e\u3001\u5727\u7e2e\u3001\u30ea\u30b5\u30a4\u30ba\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u305f\u753b\u50cf\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5909\u66f4\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n
\u753b\u50cf\u306e\u6700\u9069\u5316\u306e\u65b9\u6cd5<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306e\u9078\u629e JPEG\u3001PNG\u3001GIF\u3001WebP \u306a\u3069\u306e\u5f62\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
JPEG \u306f\u5199\u771f\u306b\u9069\u3057\u3066\u304a\u308a\u3001PNG \u306f\u900f\u660e\u6027\u304c\u5fc5\u8981\u306a\u753b\u50cf\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
WebP \u306f\u9ad8\u3044\u5727\u7e2e\u7387\u3068\u54c1\u8cea\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u8003\u616e\u3059\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u5727\u7e2e \u753b\u50cf\u306e\u54c1\u8cea\u3092\u6975\u529b\u640d\u306a\u308f\u306a\u3044\u7bc4\u56f2\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002<\/p>\n
Lossy \u5727\u7e2e\u3068 Lossless \u5727\u7e2e\u304c\u3042\u308a\u3001\u524d\u8005\u306f\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u3092\u524a\u9664\u3057\u3066\u30b5\u30a4\u30ba\u3092\u6e1b\u5c11\u3055\u305b\u3001\u5f8c\u8005\u306f\u5143\u306e\u30c7\u30fc\u30bf\u3092\u5b8c\u5168\u306b\u4fdd\u6301\u3057\u307e\u3059\u3002<\/p>\n
\u30ea\u30b5\u30a4\u30ba \u8868\u793a\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308b\u30b5\u30a4\u30ba\u306b\u753b\u50cf\u3092\u7e2e\u5c0f\u3059\u308b\u3053\u3068\u3002<\/p>\n
\u5de8\u5927\u306a\u753b\u50cf\u3092\u7e2e\u5c0f\u3057\u3066\u8868\u793a\u3059\u308b\u3053\u3068\u306f\u3001\u7121\u99c4\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u5909\u66f4 \u3088\u308a\u52b9\u7387\u7684\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u3078\u306e\u5f71\u97ff<\/p>\n
\u30c7\u30fc\u30bf\u8ee2\u9001\u91cf\u306e\u524a\u6e1b \u5c0f\u3055\u306a\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8d8a\u3057\u306e\u8ee2\u9001\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/p>\n
\u7279\u306b\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u4f4e\u901f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3067\u52b9\u679c\u304c\u9855\u8457\u3067\u3059\u3002<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6642\u9593\u306e\u77ed\u7e2e \u3088\u308a\u8efd\u91cf\u306a\u753b\u50cf\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u6642\u9593\u3092\u77ed\u304f\u3057\u307e\u3059\u3002<\/p>\n
\u5927\u304d\u306a\u753b\u50cf\u306f\u3001\u30da\u30fc\u30b8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u4e2d\u306b\u4ed6\u306e\u30ea\u30bd\u30fc\u30b9\u306e\u8aad\u307f\u8fbc\u307f\u3092\u963b\u5bb3\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u5411\u4e0a \u6700\u9069\u5316\u3055\u308c\u305f\u753b\u50cf\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u308a\u52b9\u7387\u7684\u306b\u4fdd\u5b58\u3055\u308c\u3001\u518d\u8a2a\u554f\u6642\u306b\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u3055\u3089\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u306e\u4f4e\u6e1b \u5c0f\u3055\u306a\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30ea\u30bd\u30fc\u30b9\u306e\u4f7f\u7528\u3092\u6700\u9069\u5316\u3057\u3001\u3088\u308a\u591a\u304f\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u6839\u62e0<\/p>\n
\u5b9f\u8a3c\u7814\u7a76 \u3044\u304f\u3064\u304b\u306e\u7814\u7a76\u306b\u3088\u308b\u3068\u3001\u753b\u50cf\u306e\u6700\u9069\u5316\u306f\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306b\u76f4\u63a5\u7684\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001Google \u306e\u8abf\u67fb\u3067\u306f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u304c 3 \u79d2\u3092\u8d85\u3048\u308b\u3068\u30e6\u30fc\u30b6\u30fc\u306e 53% \u304c\u30b5\u30a4\u30c8\u3092\u96e2\u308c\u308b\u3068\u3044\u3046\u30c7\u30fc\u30bf\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 \u30a6\u30a7\u30d6\u958b\u767a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u3057\u3066\u3001\u753b\u50cf\u306e\u6700\u9069\u5316\u306f\u591a\u304f\u306e\u5c02\u9580\u5bb6\u3084\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff08\u305f\u3068\u3048\u3070\u3001Google \u306e PageSpeed Insights\uff09\u3067\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30c4\u30fc\u30eb\u306e\u63d0\u4f9b \u591a\u304f\u306e\u753b\u50cf\u6700\u9069\u5316\u30c4\u30fc\u30eb\u3084\u30d7\u30e9\u30b0\u30a4\u30f3\uff08ImageOptim\u3001TinyPNG \u306a\u3069\uff09\u304c\u63d0\u4f9b\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u306f\u753b\u50cf\u306e\u6700\u9069\u5316\u306b\u3088\u308b\u6539\u5584\u52b9\u679c\u3092\u5177\u4f53\u7684\u306b\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u3001\u753b\u50cf\u306e\u6700\u9069\u5316\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u52b9\u679c\u306f\u591a\u304f\u306e\u7814\u7a76\u3084\u5b9f\u8df5\u306b\u3088\u3063\u3066\u88cf\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\u306f\u3069\u306e\u3088\u3046\u306b\u884c\u3044\u3001\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306b\u3069\u306e\u3088\u3046\u306b\u5bc4\u4e0e\u3059\u308b\u306e\u304b\uff1f
\n\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u624b\u6bb5\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u306f\u3001\u4e00\u5ea6\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3057\u3001\u6b21\u56de\u4ee5\u964d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u518d\u5229\u7528\u3059\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u3092\u518d\u53d6\u5f97\u3059\u308b\u6642\u9593\u304c\u524a\u6e1b\u3055\u308c\u3001\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7a2e\u985e<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5 \u30e6\u30fc\u30b6\u30fc\u306e\u30d6\u30e9\u30a6\u30b6\u306b\u4fdd\u5b58\u3055\u308c\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u3059\u3002<\/p>\n
\u6b21\u56de\u540c\u3058\u30ea\u30bd\u30fc\u30b9\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u3059\u308b\u969b\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3055\u305a\u306b\u30ed\u30fc\u30ab\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
HTML\u3001CSS\u3001JavaScript\u3001\u753b\u50cf\u306a\u3069\u304c\u30d6\u30e9\u30a6\u30b6\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
CDN\u30ad\u30e3\u30c3\u30b7\u30e5 \u30b3\u30f3\u30c6\u30f3\u30c4\u30c7\u30ea\u30d0\u30ea\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08CDN\uff09\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002<\/p>\n
\u5730\u7406\u7684\u306b\u8fd1\u3044\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30ea\u30bd\u30fc\u30b9\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u9045\u5ef6\u3092\u6e1b\u5c11\u3055\u305b\u307e\u3059\u3002<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5 \u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3059\u308b\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002<\/p>\n
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\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\u65b9\u6cd5<\/p>\n
HTTP\u30d8\u30c3\u30c0\u30fc\u306e\u8a2d\u5b9a \u30ad\u30e3\u30c3\u30b7\u30e5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3092\u884c\u3046\u305f\u3081\u306e\u30d8\u30c3\u30c0\u30fc\uff08\u4f8b Cache-Control, Expires, ETag \u306a\u3069\uff09\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u3084CDN\u304c\u30ea\u30bd\u30fc\u30b9\u3092\u3069\u306e\u7a0b\u5ea6\u306e\u671f\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3079\u304d\u304b\u3092\u6307\u793a\u3057\u307e\u3059\u3002<\/p>\n
\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0 \u30ea\u30bd\u30fc\u30b9\u306eURL\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7\u3084\u30cf\u30c3\u30b7\u30e5\u3092\u4ed8\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u66f4\u65b0\u304c\u5fc5\u8981\u306a\u5834\u5408\u3067\u3082\u52b9\u7387\u7684\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30ea\u30bd\u30fc\u30b9\u304c\u66f4\u65b0\u3055\u308c\u305f\u6642\u306e\u307f\u30d6\u30e9\u30a6\u30b6\u3084CDN\u304c\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u306e\u30ad\u30e3\u30c3\u30b7\u30e5 CSS\u3001JavaScript\u3001\u753b\u50cf\u306a\u3069\u306e\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u5909\u66f4\u304c\u3042\u307e\u308a\u983b\u7e41\u3067\u306a\u3044\u305f\u3081\u3001\u9577\u671f\u9593\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3053\u3068\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n
\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u3078\u306e\u5bc4\u4e0e<\/p>\n
\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306e\u5411\u4e0a \u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u76f4\u8fd1\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5fdc\u7b54\u3092\u4fdd\u5b58\u3059\u308b\u305f\u3081\u3001\u518d\u5ea6\u540c\u3058\u30ea\u30bd\u30fc\u30b9\u3092\u8981\u6c42\u3057\u305f\u5834\u5408\u306b\u9ad8\u901f\u306b\u51e6\u7406\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u3063\u3066\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u304c\u5927\u5e45\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n
\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u306e\u8efd\u6e1b \u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30ea\u30bd\u30fc\u30b9\u3092\u30b5\u30fc\u30d0\u30fc\u304c\u4f55\u5ea6\u3082\u751f\u6210\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308b\u305f\u3081\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u6e1b\u5c11\u3055\u305b\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u65b0\u3057\u3044\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u8fc5\u901f\u306b\u5bfe\u5fdc\u3059\u308b\u80fd\u529b\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n
\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u524a\u6e1b \u30e6\u30fc\u30b6\u30fc\u306e\u30d6\u30e9\u30a6\u30b6\u3084CDN\u304b\u3089\u30ea\u30bd\u30fc\u30b9\u304c\u63d0\u4f9b\u3055\u308c\u308b\u305f\u3081\u3001\u30aa\u30ea\u30b8\u30f3\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u304c\u6e1b\u5c11\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u6839\u62e0<\/p>\n
HTTP \u30d7\u30ed\u30c8\u30b3\u30eb\u4ed5\u69d8 HTTP\/1.1\u4ee5\u964d\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u4ed5\u69d8\u304c\u78ba\u7acb\u3055\u308c\u3066\u304a\u308a\u3001\u7279\u306bCache-Control\u3084Expires \u3068\u3044\u3063\u305f\u30d8\u30c3\u30c0\u30fc\u306b\u3088\u3063\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u7ba1\u7406\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u7814\u7a76 Google\u3084Amazon\u306a\u3069\u306e\u8abf\u67fb\u306b\u3088\u308c\u3070\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c1\u79d2\u9045\u308c\u308b\u3054\u3068\u306b\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u7387\u304c\u8457\u3057\u304f\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u306f\u3001\u30b5\u30a4\u30c8\u306e\u901f\u5ea6\u5411\u4e0a\u306b\u76f4\u63a5\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n
\u696d\u754c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 \u69d8\u3005\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u6700\u9069\u5316\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u304a\u3044\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\u306f\u5e38\u306b\u57fa\u672c\u7684\u304b\u3064\u91cd\u8981\u306a\u624b\u6cd5\u3068\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u52b9\u679c\u306f\u5e83\u304f\u8a8d\u8b58\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u52b9\u679c\u7684\u306b\u6539\u5584\u3059\u308b\u9375\u3068\u306a\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n
\u9069\u5207\u306a\u8a2d\u5b9a\u3068\u7ba1\u7406\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30b5\u30a4\u30c8\u306e\u5229\u7528\u4f53\u9a13\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u5fc5\u8981\u306e\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7279\u5b9a\u3057\u524a\u9664\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u304f\u3001\u305d\u308c\u304c\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306b\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3059\u308b\u306e\u304b\uff1f
\n\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306f\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3084SEO\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n
\u5fc5\u8981\u306e\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7279\u5b9a\u3057\u524a\u9664\u3059\u308b\u3053\u3068\u306f\u3001\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306e\u6539\u5584\u306b\u6709\u52b9\u306a\u65b9\u6cd5\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n
\u3053\u3053\u3067\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u4e0d\u8981\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7279\u5b9a\u3057\u3001\u524a\u9664\u3059\u308b\u304b\u3001\u305d\u3057\u3066\u305d\u308c\u304c\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306b\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3059\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u4e0d\u8981\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u7279\u5b9a\u65b9\u6cd5<\/p>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7
\n\u307e\u305a\u3001\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306eJavaScript\u30d5\u30a1\u30a4\u30eb\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002<\/p>\n
\u958b\u767a\u30c4\u30fc\u30eb\uff08\u4f8b\u3000Chrome\u306eDevTools\uff09\u3092\u4f7f\u7528\u3057\u3066\u3001Network\u30bf\u30d6\u304b\u3089\u30ed\u30fc\u30c9\u3055\u308c\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u76ee\u7684\u3068\u5229\u7528\u72b6\u6cc1\u3092\u78ba\u8a8d
\n\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u76ee\u7684\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
\u305f\u3068\u3048\u3070\u3001\u7279\u5b9a\u306e\u6a5f\u80fd\u3084\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306b\u95a2\u9023\u3065\u3051\u3089\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u628a\u63e1\u3057\u307e\u3059\u3002<\/p>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u5b9f\u969b\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u884c\u52d5\u3068\u95a2\u4fc2\u3057\u3066\u3044\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u30d3\u30b8\u30cd\u30b9\u4e0a\u306e\u4fa1\u5024\u304c\u4f4e\u3044\u5834\u5408\u306f\u3001\u4e0d\u8981\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u5b9f\u969b\u306e\u4f7f\u7528\u72b6\u6cc1\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0
\n\u30b5\u30a4\u30c8\u306e\u4f7f\u7528\u72b6\u6cc1\u3092\u5206\u6790\u3059\u308b\u305f\u3081\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u884c\u52d5\u3092\u8ffd\u8de1\u3059\u308b\u30c4\u30fc\u30eb\uff08\u4f8b\u3000Google Analytics\u3084Hotjar\uff09\u3092\u6d3b\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u3092\u7528\u3044\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u7279\u5b9a\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u6a5f\u80fd\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u4f9d\u5b58\u95a2\u4fc2\u306e\u78ba\u8a8d
\n\u4ed6\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3084\u6a5f\u80fd\u304c\u7279\u5b9a\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u78ba\u8a8d\u3057\u3066\u3001\u524a\u9664\u304c\u4ed6\u306e\u6a5f\u80fd\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u524a\u9664\u304c\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306b\u4e0e\u3048\u308b\u5f71\u97ff<\/p>\n
HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u6e1b\u5c11
\n\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u6570\u304c\u6e1b\u5c11\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9045\u5ef6\u306e\u5f71\u97ff\u304c\u8efd\u6e1b\u3055\u308c\u3001\u30da\u30fc\u30b8\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u51e6\u7406\u306e\u8ca0\u62c5\u8efd\u6e1b
\nJavaScript\u306f\u89e3\u6790\u3068\u5b9f\u884c\u306b\u30d6\u30e9\u30a6\u30b6\u30ea\u30bd\u30fc\u30b9\u3092\u5927\u91cf\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u4e0d\u8981\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u89e3\u6790\u30fb\u5b9f\u884c\u30b3\u30b9\u30c8\u304c\u524a\u6e1b\u3055\u308c\u3001\u8868\u793a\u304c\u8fc5\u901f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u6e1b\u5c11
\n\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u30da\u30fc\u30b8\u306e\u7dcf\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306b\u5bc4\u4e0e\u3057\u307e\u3059\u3002<\/p>\n
\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\u307b\u3069\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u6642\u9593\u304c\u77ed\u304f\u306a\u308a\u3001\u30da\u30fc\u30b8\u5168\u4f53\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u6839\u62e0\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/p>\n
Google\u306ePageSpeed Insights\u3084Lighthouse\u306a\u3069\u306e\u30c4\u30fc\u30eb\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u30a2\u30c9\u30d0\u30a4\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u901a\u5e38\u3001\u4e0d\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u306e\u524a\u9664\u3084\u975e\u540c\u671f\u30ed\u30fc\u30c9\u306e\u5c0e\u5165\u3001\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u306e\u6700\u9069\u5316\u3092\u63d0\u6848\u3057\u307e\u3059\u3002<\/p>\n
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