\u6295\u6a5f\u7684\u8aad\u307f\u8fbc\u307f(\u4ee5\u4e0b\u3001Speculative Loading\u3068\u547c\u3073\u307e\u3059)\u3068\u306f\u3001Chrome\u7cfb\u306e\u30d6\u30e9\u30a6\u30b6\u306e\u30d0\u30fc\u30b8\u30e7\u30f3108\u4ee5\u964d\u3067\u5229\u7528\u304c\u53ef\u80fd\u306a\u30d6\u30e9\u30a6\u30b6\u306eAPI\u3067\u3042\u308b\u6295\u6a5f\u30eb\u30fc\u30ebAPI(Speculation Rules API)\u3092\u6d3b\u7528\u3057\u305f\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n
\u5177\u4f53\u7684\u306b\u8a00\u3048\u3070\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u969b\u306b\u30da\u30fc\u30b8\u3092\u958b\u304f\u524d\u304b\u3089\u8aad\u8fbc\u5148\u3092\u4e88\u6e2c\u3057\u3066\u3001\u8aad\u307f\u8fbc\u307f\u3084\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u958b\u59cb\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n
<\/span>\u767a\u52d5\u6761\u4ef6\u306f?<\/span><\/h2>\n\n\n\nSpeuclative Loading\u306e\u30b3\u30fc\u30c9\u304c\u30b5\u30fc\u30d0\u5074\u304b\u3089\u51fa\u529b\u3059\u308b\u6761\u4ef6\u306b\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u3001<\/p>\n\n\n\n
\n- WordPress 6.8\u4ee5\u4e0a\u3092\u5229\u7528<\/li>\n\n\n\n
- WordPress\u306e\u7ba1\u7406\u753b\u9762\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044<\/li>\n<\/ul>\n\n\n\n
\u3053\u3068\u304c\u6761\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3055\u3089\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u3082\u3053\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u304b\u3069\u3046\u304b\u306e\u52d5\u4f5c\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u8a73\u3057\u304f\u306f\u5f8c\u8ff0\u3059\u308bSpeculative Loading\u306e\u69cb\u6210\u306e\u9805\u76ee\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
<\/span>Speuclative Loading\u306b\u3088\u308b\u30e1\u30ea\u30c3\u30c8\u306f?<\/span><\/h2>\n\n\n\n<\/span>LCP\u30fb\u4f53\u611f\u901f\u5ea6\u306e\u6539\u5584<\/span><\/h3>\n\n\n\n\u30e6\u30fc\u30b6\u304c\u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u524d(\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u30db\u30d0\u30fc\u3057\u305f\u6bb5\u968e\u3084\u305d\u3082\u305d\u3082\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u6bb5\u968e)\u304b\u3089\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u3001Largest Content Paint\u306e\u6570\u5024\u304c\u6539\u5584\u3057\u3001\u3072\u3044\u3066\u306fCore Web Vitals\u304c\u6539\u5584\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u3001WordPress\u30b5\u30a4\u30c8\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001Shopify\u3067Speculative Loading\u3092\u5c0e\u5165\u3057\u305f\u7d50\u679c\u6700\u592760\u30df\u30ea\u79d2\u306e\u9ad8\u901f\u5316\u304c\u3067\u304d\u305f\u3053\u3068\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3055\u3089\u306b\u30d6\u30e9\u30a6\u30b6\u5074\u3084\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/a>\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u6700\u9069\u5316<\/a>\u3082\u4f75\u305b\u3066\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u307e\u308b\u3067\u4e00\u77ac\u3067\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3088\u3046\u306a\u4f53\u611f\u901f\u5ea6\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>Speculative Loading\u306b\u3088\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u306f?<\/span><\/h2>\n\n\n\nSpeculative Loading\u306f\u305d\u306e\u6027\u8cea\u4e0a\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb<\/span><\/h3>\n\n\n\nSpeculative Loading\u306f\u3001\u5b9f\u969b\u306b\u30af\u30ea\u30c3\u30af\u3057\u3066\u8868\u793a\u3055\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u5bb9\u91cf\u3084\u96fb\u529b\u6d88\u8cbb\u304c\u7121\u99c4\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u30b5\u30fc\u30d0\u5074\u3067\u3082\u901a\u4fe1\u304c\u5f93\u91cf\u8ab2\u91d1\u306e\u5834\u5408\u306b\u3082\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n
\u305d\u306e\u305f\u3081\u3001\u898b\u5883\u306a\u304f\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
<\/span>\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u306e\u78ba\u8a8d\u56f0\u96e3<\/span><\/h3>\n\n\n\n\u3055\u3089\u306b\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb\u306b\u52a0\u3048\u3066\u3001Google Analytics\u306a\u3069\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u3001HTTP\u30b5\u30fc\u30d0\u304b\u3089\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u3092\u8a08\u6e2c\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001Speculative Loading\u306f\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u969b\u306b\u30da\u30fc\u30b8\u3092\u958b\u304b\u305a\u3068\u3082\u8aad\u307f\u8fbc\u307f\u3092\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u8a08\u6e2c\u304c\u56f0\u96e3\u306b\u306a\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u3001\u30da\u30fc\u30b8\u306b\u3042\u308bJavascript\u306a\u3069\u307e\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u3067\u3059\u306e\u3067\u3001\u7279\u5225\u306a\u51e6\u7406\u3092\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u304c\u6b63\u3057\u304f\u8a08\u6e2c\u3055\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u4ee3\u8868\u7684\u30c4\u30fc\u30eb\u3067\u3042\u308bGoogle Analytics\u306f\u5bfe\u5fdc\u304c\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u5b89\u5fc3\u3057\u3066\u5229\u7528\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n
<\/span>\u3069\u3046\u3084\u3063\u3066\u8a2d\u5b9a\u3092\u6700\u9069\u5316\u3059\u308b\u304b<\/span><\/h2>\n\n\n\nSpeculative Loading\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u8a2d\u5b9a\u306e\u6700\u9069\u5316\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u62bc\u3055\u3048\u3066\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u6700\u5c0f\u5316\u3057\u306a\u304c\u3089\u3082\u52b9\u679c\u3092\u6700\u5927\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\n- \u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u78ba\u7387\u304c\u5e73\u5747\u3057\u306650%\u4ee5\u4e0a80%\u672a\u6e80\u2192
prefetch<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u78ba\u7387\u304c\u5e73\u5747\u3057\u306680%\u4ee5\u4e0a\u2192
prerender<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u3082\u3057\u30af\u30ea\u30c3\u30af\u4e88\u6e2c\u3092\u7acb\u3066\u3089\u308c\u308b\u306a\u3089\u2026\n
\n- \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u591a\u3044\u30b5\u30a4\u30c8\u2192
eager<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e\n\n- \u81ea\u4fe1\u304c\u306a\u3044\u306a\u3089
moderate<\/code>\u3067\u3082OK<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30d1\u30bd\u30b3\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u591a\u3044\u30b5\u30a4\u30c8\u2192
moderate<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30af\u30ea\u30c3\u30af\u4e88\u6e2c\u3092\u7acb\u3066\u3089\u308c\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u76f4\u5e30\u7387\u304c\u9ad8\u3044\u30b5\u30a4\u30c8\u306e\u5834\u5408\u2192
conservative<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u7b49\u3001\u30db\u30d0\u30fc\u3055\u308c\u308b\u304c\u7d50\u5c40\u30af\u30ea\u30c3\u30af\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3082\u306e\u306f\u9664\u5916\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n
<\/span>\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/span><\/h3>\n\n\n\nSpeculative Loading\u306e\u30c7\u30d0\u30c3\u30b0\u306b\u3064\u3044\u3066\u306f\u3001<\/p>\n\n\n\n
\n- \u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3092
tail -f<\/code>\u306a\u3069\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n- \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3092\u4f7f\u3046<\/li>\n<\/ul>\n\n\n\n
\u4ee5\u4e0a\u306e\u4e8c\u70b9\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u3088\u308a\u30c7\u30d0\u30c3\u30b0\u306e\u3057\u3084\u3059\u3044\u5f8c\u8005\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305a\u306f\u30c7\u30d0\u30c3\u30b0\u3057\u305f\u3044\u30da\u30fc\u30b8\u3092\u3001\u30b5\u30a4\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u958b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u72b6\u614b\u3067\u3001F12\u30ad\u30fc\u3092\u62bc\u4e0b\u3059\u308b\u3068\u3001\u958b\u767a\u8005\u30c4\u30fc\u30eb\u304c\u958b\u304f\u306e\u3067\u3001Application<\/code>\u30bf\u30d6\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u30bf\u30d6\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u3001\u5de6\u5074\u304b\u3089Background services<\/code>\u5185\u306b\u3042\u308bSpeculative loads<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u3059\u308b\u3068\u3001\u6982\u8981\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6982\u8981\u306b\u306f\u3001Speculative Loading\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3001\u4f55\u4ef6Speculative Loading\u304c\u884c\u308f\u308c\u3046\u308b(\u3042\u308b\u3044\u306f\u884c\u308f\u308c\u305f)\u304b\u306e\u4ef6\u6570\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n![\"Speculative](\"https:\/\/www.prime-strategy.co.jp\/column\/wp-content\/uploads\/2025\/03\/image-15-1024x576.png\")
<\/figure>\n\n\n\n\u8a73\u7d30\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f?<\/h4>\n\n\n\n
\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u3001Speculative loads<\/code>\u306e\u6a2a\u306b\u3042\u308b\u4e09\u89d2\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u5c55\u958b\u3057\u3001Speculations<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n![\"Speculative](\"https:\/\/www.prime-strategy.co.jp\/column\/wp-content\/uploads\/2025\/03\/image-16-1024x576.png\")
<\/figure>\n\n\n\n\u30c6\u30fc\u30d6\u30eb\u5185\u306b\u3042\u308b\u9805\u76ee\u306f\u305d\u308c\u305e\u308c\u3001<\/p>\n\n\n\n
\nURL<\/code>\u306fSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u5bfe\u8c61\u5148<\/li>\n\n\n\nAction<\/code>\u306f\u5148\u8aad\u307f\u307e\u305f\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u5225<\/li>\n\n\n\nRule set<\/code>\u306f\u3069\u3053\u304b\u3089\u3053\u306e\u30eb\u30fc\u30eb\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\nStatus<\/code>\u306f\u5b9f\u969b\u306b\u5148\u8aad\u307f\u3042\u308b\u3044\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u306e\u6709\u7121<\/li>\n<\/ul>\n\n\n\n\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001Speculations<\/code>\u306e\u4e0a\u306b\u3042\u308bRules<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u3001Speculative Loading\u306e\u6319\u52d5\u5b9a\u7fa9\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n![\"Speculative](\"https:\/\/www.prime-strategy.co.jp\/column\/wp-content\/uploads\/2025\/03\/image-17-1024x576.png\")
<\/figure>\n\n\n\n\u3053\u308c\u3089\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306bSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u306e\u304b\u3001\u307e\u305f\u3001\u5148\u8aad\u307f\u3057\u3059\u304e\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>Speculative Loading\u306e\u69cb\u6210<\/span><\/h2>\n\n\n\nSpeculative Loading\u306b\u306f\u73fe\u6642\u70b9\u3067\u306f3\u7a2e\u985e\u306e\u5f37\u5ea6(eagerness<\/code>)\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u306f\u3001conservative<\/code>\u3001moderate<\/code>\u3001eager <\/code>(\u73fe\u5728\u306fimmediate<\/code>\u3068\u540c\u7fa9)\u3067\u3059\u3002\u5c06\u6765\u7684\u306b\u306feager<\/code>\u306e\u4e0a\u4f4d\u306bimmediate<\/code>\u304c\u4f4d\u7f6e\u3059\u308b\u4e88\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u307e\u305f\u3001\u5f37\u5ea6\u4ee5\u5916\u306b\u3082\u3001\u5148\u8aad\u307f\u3092\u3059\u308b\u304b\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u3059\u308b\u304b\u306e\u9078\u629e\u3082\u53ef\u80fd\u3067\u3059\u3002\u5148\u8aad\u307f\u306f\u4e8b\u524d\u306b\u30c7\u30fc\u30bf\u306f\u8aad\u307f\u8fbc\u3080\u304c\u30da\u30fc\u30b8\u306e\u8868\u793a\u3092\u751f\u6210\u3057\u3066\u304a\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u70b9\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u4e00\u6b69\u8e0f\u307f\u8fbc\u307f\u3001\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u8868\u793a\u3092\u4e8b\u524d\u306b\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
conservative<\/code>\u306f\u30af\u30ea\u30c3\u30af\u304c\u5b9f\u65bd\u3055\u308c\u305f\u6bb5\u968e\u3067\u521d\u3081\u3066\u767a\u52d5\u3057\u307e\u3059\u3002moderate<\/code>\u306f\u3001conservative<\/code>\u306e\u6761\u4ef6\u306b\u52a0\u3048\u3001\u5bfe\u8c61\u30ea\u30f3\u30af\u3092200\u30df\u30ea\u79d2\u30db\u30d0\u30fc\u3057\u305f\u5834\u5408\u3067\u3082\u767a\u52d5\u3057\u307e\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u7b49\u306f\u30db\u30d0\u30fc\u30a4\u30d9\u30f3\u30c8\u304c\u539f\u5247\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u3001\u5b9f\u8ceaconservative<\/code>\u3068\u540c\u7b49\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u3001eager<\/code>\u3068immediate<\/code>\u306f\u5f53\u8a72Speculation Rules<\/code>\u304c\u8aad\u307f\u8fbc\u307e\u308c\u6b21\u7b2c\u3001\u901f\u3084\u304b\u306b\u5148\u8aad\u307f\u3084\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u958b\u59cb\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u306a\u304a\u3001\u53d6\u5f97\u3092\u8a66\u307f\u3066\u3001HTTP 200\u7cfb\u4ee5\u5916(\u4f8b: 301, 302, 401, 403, 404, 500, 502, 503\u306a\u3069)\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30b3\u30fc\u30c9\u304c\u8fd4\u3063\u3066\u304d\u305f\u5834\u5408\u3001\u5148\u8aad\u307f\u30fb\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u5f53\u8a72\u30ea\u30bd\u30fc\u30b9\u306b\u304a\u3044\u3066\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u3001HTTP 204\u3042\u308b\u3044\u306f205\u306e\u5834\u5408\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u307f\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>Speculative Loading\u306e\u5236\u7d04<\/span><\/h3>\n\n\n\n\u3055\u3089\u306b\u3001\u5148\u8aad\u307f\u3068\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u4ef6\u6570\u306b\u3082\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002\u5148\u8aad\u307f\u306feager<\/code>\u3068immediate<\/code>\u306e\u5834\u5408\u3067\u6700\u592750\u4ef6\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u6700\u592710\u4ef6\u307e\u3067\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002conservative<\/code>\u3068moderate<\/code>\u306e\u5834\u5408\u3055\u3089\u306b\u5c11\u306a\u304f\u3001\u305d\u308c\u305e\u308c2\u4ef6\u305a\u3064\u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u4e0a\u9650\u3092\u8d85\u3048\u308b\u3068\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u30c7\u30fc\u30bf\u306f\u53e4\u3044\u9806\u306b\u30e1\u30e2\u30ea\u304b\u3089\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5bfe\u7b56\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u3084\u30b5\u30fc\u30d0\u306b\u904e\u5ea6\u306a\u8ca0\u62c5\u3092\u304b\u3051\u306a\u3044\u3088\u3046\u306b\u914d\u616e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u307b\u304b\u5148\u8aad\u307f\u304c\u5b9f\u884c\u3055\u308c\u306a\u3044\u4ee3\u8868\u4f8b\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n- \u4f4e\u96fb\u529b\u30e2\u30fc\u30c9\u304c\u6709\u52b9\u306a\u5834\u5408<\/li>\n\n\n\n
- \u30c7\u30fc\u30bf\u30bb\u30fc\u30d0\u30fc\u304c\u6709\u52b9\u306a\u5834\u5408<\/li>\n\n\n\n
- \u30e1\u30e2\u30ea\u4e0d\u8db3\u306e\u5834\u5408\u7b49<\/li>\n<\/ul>\n\n\n\n
\u5148\u307b\u3069\u3082\u66f8\u304d\u307e\u3057\u305f\u901a\u308a\u3001\u5148\u8aad\u307f\u306f\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fbCPU\u30fb\u30e1\u30e2\u30ea\u3092\u7121\u99c4\u306b\u6d88\u8cbb\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300150%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u3055\u3089\u306b\u8ca0\u8377\u304c\u9ad8\u304f\u3001\u7279\u5225\u306a\u5bfe\u7b56(\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u691c\u77e5\u3059\u308b\u30b3\u30fc\u30c9prerenderingchange<\/code>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u7d44\u307f\u8fbc\u307f\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u9045\u5ef6\u3055\u305b\u308b\u306a\u3069)\u304c\u306a\u3055\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306b\u9650\u3089\u305a\u3001Javascript\u7b49\u3092\u5229\u7528\u3057\u305f\u30a2\u30af\u30bb\u30b9\u8a08\u6e2c\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300180%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>WordPress\u3067\u306eSpeculative Loading\u306e\u5b9f\u88c5<\/span><\/h2>\n\n\n\n\u3055\u3066\u3001WordPress 6.8\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30c6\u30fc\u30de\u3067\u3042\u308bTwenty Twenty-Five\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001\u5f53\u65b9\u3067\u6539\u884c\u304a\u3088\u3073\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u5165\u308c\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
{\n "prefetch":[\n {\n "source":"document",\n "where":{\n "and":[\n {\n "href_matches":"\\\/*"\n },\n {\n "not":{\n "href_matches":[\n "\\\/wp-*.php",\n "\\\/wp-admin\\\/*",\n "\\\/wp-content\\\/uploads\\\/*",\n "\\\/wp-content\\\/*",\n "\\\/wp-content\\\/plugins\\\/*",\n "\\\/wp-content\\\/themes\\\/twentytwentyfive\\\/*",\n "\\\/*\\\\?(.+)"\n ]\n }\n },\n {\n "not":{\n "selector_matches":"a[rel~=\\"nofollow\\"]"\n }\n },\n {\n "not":{\n "selector_matches":".no-prefetch, .no-prefetch a"\n }\n }\n ]\n },\n "eagerness":"conservative"\n }\n ]\n}<\/code><\/pre><\/div>\n\n\n\n\u3053\u308c\u3089\u304c\u610f\u5473\u3059\u308b\u3068\u3053\u308d\u3092\u65e5\u672c\u8a9e\u306b\u3059\u308b\u3068\u3001<\/p>\n\n\n\n
\n- HTML\u306a\u3069\u306e\u6587\u66f8\u306e\u30ea\u30f3\u30af\u3092\u3059\u3079\u3066\u5148\u53d6\u308a\u53d6\u5f97\u3059\u308b<\/li>\n\n\n\n
- \u305f\u3060\u3057\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u306f\u5148\u53d6\u308a\u53d6\u5f97\u304b\u3089\u9664\u5916\u3059\u308b\n
\n- WordPress\u306e\u7ba1\u7406\u753b\u9762\u7cfb\u306e\u30d5\u30a1\u30a4\u30eb<\/li>\n\n\n\n
- \/wp-content\/\u306e\u4e2d\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u307b\u3068\u3093\u3069<\/li>\n\n\n\n
- \u30af\u30a8\u30ea\u6587\u5b57\u5217\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u30da\u30fc\u30b8<\/li>\n\n\n\n
rel=\"nofollow\"<\/code>\u5c5e\u6027\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n\n\n\nno-prefetch<\/code>\u30af\u30e9\u30b9\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30af\u30ea\u30c3\u30af\u3057\u3066\u304b\u3089\u521d\u3081\u3066\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b<\/li>\n\n\n\n
- \u8aad\u307f\u8fbc\u307f\u3092\u3059\u308b\u3060\u3051\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u3057\u306a\u3044\u3067\u304a\u304f<\/li>\n<\/ul>\n\n\n\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n
<\/span>\u30eb\u30fc\u30eb\u306e\u8ffd\u52a0\u30fb\u64cd\u4f5c<\/span><\/h3>\n\n\n\nWordPress\u306b\u304a\u3044\u3066\u3001\u3053\u308c\u3089\u306e\u6319\u52d5\u3092\u8a2d\u5b9a\u3059\u308b\u5148\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u8abf\u67fb\u3057\u305f\u3068\u3053\u308d\u3001\u307e\u3060\u516c\u8868\u3055\u308c\u3066\u3044\u306a\u3044\u6a21\u69d8\u3067\u3059\u3002\u3067\u3059\u304c\u3001\u7b46\u8005\u3068\u3057\u3066\u306f\u5b50\u30c6\u30fc\u30de\u306efunctions.php<\/code>\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001<\/p>\n\n\n\n\n- \u30b5\u30a4\u30c8\u3054\u3068\u306b\u30c6\u30fc\u30de\u3084\u6700\u9069\u5316\u3059\u308b\u3079\u304d\u9805\u76ee\u304c\u7570\u306a\u308b\u3053\u3068\u304b\u3089\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u306f\u9069\u5207\u3067\u306f\u306a\u3044\u3053\u3068<\/li>\n\n\n\n
- \u591a\u304f\u306e\u30b5\u30a4\u30c8\u306f\u65e2\u5b58\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u5229\u7528\u3057\u3066\u3044\u308b(=\u81ea\u4f5c\u3067\u306f\u306a\u3044)\u305f\u3081\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u7b49\u3067\u4e0a\u66f8\u304d\u3055\u308c\u3046\u308b\u30c6\u30fc\u30de\u306e
functions.php<\/code>\u306b\u66f8\u304f\u3053\u3068\u306f\u63a8\u5968\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n\n\n\n\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n
\u7279\u5b9a\u306e\u30da\u30fc\u30b8\u3092\u9664\u5916\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059:<\/p>\n\n\n\n
add_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths ) {\n $href_exclude_paths[] = '\/cart\/*'; \/\/\u3053\u3053\u3092\u66f8\u304d\u63db\u3048\u308b\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u884c\u3092\u8ffd\u52a0\u3057\u5bfe\u5fdc\n return $href_exclude_paths;\n }\n);\n\/\/\u3042\u308b\u3044\u306f\u3001prerender\u306e\u307f\u9664\u5916\u3057\u305f\u3044\u5834\u5408\nadd_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths, $mode ) {\n if ( 'prerender' === $mode ) {\n $href_exclude_paths[] = '\/personalized-area\/*';\n }\n return $href_exclude_paths;\n },\n 10,\n 2\n);<\/code><\/pre><\/div>\n\n\n\n\u5f37\u5ea6\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059:<\/p>\n\n\n\n
add_filter(\n 'wp_speculation_rules_configuration',\n function ( $config ) {\n if ( is_array( $config ) ) {\n $config['eagerness'] = 'moderate'; \/\/conservative\u304c\u6a19\u6e96\u3060\u304c\u3001moderate\u3084eager\u3001immediate\u306b\u5909\u66f4\u53ef\u80fd\n $config['mode'] = 'prerender'; \/\/prefetch\u304c\u6a19\u6e96\u3060\u304c\u3001prerender\u306b\u5909\u66f4\u53ef\u80fd\n }\n return $config;\n }\n);<\/code><\/pre><\/div>\n\n\n\n\u3055\u3089\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u8a2d\u5b9a\u3092\u7d30\u304b\u304f\u8abf\u6574\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059:<\/p>\n\n\n\n
add_action(\n 'wp_load_speculation_rules',\n function ( WP_Speculation_Rules $speculation_rules ) {\n $speculation_rules->add_rule(\n 'prerender', \/\/prerender\u304bprefetch\u304b\n 'my-moderate-prerender-url-rule', \/\/\u30eb\u30fc\u30eb\u540d\n array(\n 'source' => 'list', \/\/document\u306a\u3069\u304c\u3042\u308b\u304c\u3001\u5bfe\u8c61\u5148\u660e\u793a\u306e\u305f\u3081list\n 'urls' => array(\n '\/some-url\/', \/\/\u5bfe\u8c61URL\u306e\u30ea\u30b9\u30c8\n '\/another-url\/',\n '\/yet-another-url\/',\n ),\n 'eagerness' => 'moderate', \/\/conservative, moderate, eager, immediate\u304b\u3089\u9078\u629e\n )\n );\n $speculation_rules->add_rule(\n 'prerender',\n 'my-moderate-prerender-optin-rule',\n array(\n 'source' => 'document', \/\/HTML\u30d5\u30a1\u30a4\u30eb\u5185\u304b\u3089\u691c\u7d22\n 'where' => array(\n 'selector_matches' => '.moderate-prerender, .moderate-prerender a', \/\/.moderate-prerender\u3084\u305d\u306e\u30af\u30e9\u30b9\u306e\u3064\u3044\u305f\u30ea\u30f3\u30af\u3092\u5bfe\u8c61\u306b\u3059\u308b\n ),\n 'eagerness' => 'moderate',\n )\n );\n }\n);<\/code><\/pre><\/div>\n\n\n\n<\/span>\u53c2\u8003\u6587\u732e<\/span><\/h2>\n\n\n\n\n- Prerender Pages in Chrome<\/a><\/li>\n\n\n\n
- wp-includes\/speculative-loading.php<\/a><\/li>\n\n\n\n
- Speculation Rules API : MDN<\/a><\/li>\n\n\n\n
- Debug Speculation Rules with Chrome Devtools<\/a><\/li>\n\n\n\n
- Add Speculative Loading Support.<\/a><\/li>\n\n\n\n
- Speculative Loading in 6.8<\/a><\/li>\n<\/ul>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3068\u304c\u6761\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3055\u3089\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u3082\u3053\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u304b\u3069\u3046\u304b\u306e\u52d5\u4f5c\u6761\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u8a73\u3057\u304f\u306f\u5f8c\u8ff0\u3059\u308bSpeculative Loading\u306e\u69cb\u6210\u306e\u9805\u76ee\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
<\/span>Speuclative Loading\u306b\u3088\u308b\u30e1\u30ea\u30c3\u30c8\u306f?<\/span><\/h2>\n\n\n\n<\/span>LCP\u30fb\u4f53\u611f\u901f\u5ea6\u306e\u6539\u5584<\/span><\/h3>\n\n\n\n\u30e6\u30fc\u30b6\u304c\u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u524d(\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u30db\u30d0\u30fc\u3057\u305f\u6bb5\u968e\u3084\u305d\u3082\u305d\u3082\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u6bb5\u968e)\u304b\u3089\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u3001Largest Content Paint\u306e\u6570\u5024\u304c\u6539\u5584\u3057\u3001\u3072\u3044\u3066\u306fCore Web Vitals\u304c\u6539\u5584\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u3001WordPress\u30b5\u30a4\u30c8\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001Shopify\u3067Speculative Loading\u3092\u5c0e\u5165\u3057\u305f\u7d50\u679c\u6700\u592760\u30df\u30ea\u79d2\u306e\u9ad8\u901f\u5316\u304c\u3067\u304d\u305f\u3053\u3068\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3055\u3089\u306b\u30d6\u30e9\u30a6\u30b6\u5074\u3084\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/a>\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u6700\u9069\u5316<\/a>\u3082\u4f75\u305b\u3066\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u307e\u308b\u3067\u4e00\u77ac\u3067\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3088\u3046\u306a\u4f53\u611f\u901f\u5ea6\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>Speculative Loading\u306b\u3088\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u306f?<\/span><\/h2>\n\n\n\nSpeculative Loading\u306f\u305d\u306e\u6027\u8cea\u4e0a\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb<\/span><\/h3>\n\n\n\nSpeculative Loading\u306f\u3001\u5b9f\u969b\u306b\u30af\u30ea\u30c3\u30af\u3057\u3066\u8868\u793a\u3055\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u5bb9\u91cf\u3084\u96fb\u529b\u6d88\u8cbb\u304c\u7121\u99c4\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u30b5\u30fc\u30d0\u5074\u3067\u3082\u901a\u4fe1\u304c\u5f93\u91cf\u8ab2\u91d1\u306e\u5834\u5408\u306b\u3082\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n
\u305d\u306e\u305f\u3081\u3001\u898b\u5883\u306a\u304f\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
<\/span>\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u306e\u78ba\u8a8d\u56f0\u96e3<\/span><\/h3>\n\n\n\n\u3055\u3089\u306b\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb\u306b\u52a0\u3048\u3066\u3001Google Analytics\u306a\u3069\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u3001HTTP\u30b5\u30fc\u30d0\u304b\u3089\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u3092\u8a08\u6e2c\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001Speculative Loading\u306f\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u969b\u306b\u30da\u30fc\u30b8\u3092\u958b\u304b\u305a\u3068\u3082\u8aad\u307f\u8fbc\u307f\u3092\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u8a08\u6e2c\u304c\u56f0\u96e3\u306b\u306a\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u3001\u30da\u30fc\u30b8\u306b\u3042\u308bJavascript\u306a\u3069\u307e\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u3067\u3059\u306e\u3067\u3001\u7279\u5225\u306a\u51e6\u7406\u3092\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u304c\u6b63\u3057\u304f\u8a08\u6e2c\u3055\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u4ee3\u8868\u7684\u30c4\u30fc\u30eb\u3067\u3042\u308bGoogle Analytics\u306f\u5bfe\u5fdc\u304c\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u5b89\u5fc3\u3057\u3066\u5229\u7528\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n
<\/span>\u3069\u3046\u3084\u3063\u3066\u8a2d\u5b9a\u3092\u6700\u9069\u5316\u3059\u308b\u304b<\/span><\/h2>\n\n\n\nSpeculative Loading\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u8a2d\u5b9a\u306e\u6700\u9069\u5316\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u62bc\u3055\u3048\u3066\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u6700\u5c0f\u5316\u3057\u306a\u304c\u3089\u3082\u52b9\u679c\u3092\u6700\u5927\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\n- \u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u78ba\u7387\u304c\u5e73\u5747\u3057\u306650%\u4ee5\u4e0a80%\u672a\u6e80\u2192
prefetch<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u78ba\u7387\u304c\u5e73\u5747\u3057\u306680%\u4ee5\u4e0a\u2192
prerender<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u3082\u3057\u30af\u30ea\u30c3\u30af\u4e88\u6e2c\u3092\u7acb\u3066\u3089\u308c\u308b\u306a\u3089\u2026\n
\n- \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u591a\u3044\u30b5\u30a4\u30c8\u2192
eager<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e\n\n- \u81ea\u4fe1\u304c\u306a\u3044\u306a\u3089
moderate<\/code>\u3067\u3082OK<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30d1\u30bd\u30b3\u30f3\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u591a\u3044\u30b5\u30a4\u30c8\u2192
moderate<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30af\u30ea\u30c3\u30af\u4e88\u6e2c\u3092\u7acb\u3066\u3089\u308c\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u76f4\u5e30\u7387\u304c\u9ad8\u3044\u30b5\u30a4\u30c8\u306e\u5834\u5408\u2192
conservative<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n- \u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u7b49\u3001\u30db\u30d0\u30fc\u3055\u308c\u308b\u304c\u7d50\u5c40\u30af\u30ea\u30c3\u30af\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3082\u306e\u306f\u9664\u5916\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n
<\/span>\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/span><\/h3>\n\n\n\nSpeculative Loading\u306e\u30c7\u30d0\u30c3\u30b0\u306b\u3064\u3044\u3066\u306f\u3001<\/p>\n\n\n\n
\n- \u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3092
tail -f<\/code>\u306a\u3069\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n- \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3092\u4f7f\u3046<\/li>\n<\/ul>\n\n\n\n
\u4ee5\u4e0a\u306e\u4e8c\u70b9\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u3088\u308a\u30c7\u30d0\u30c3\u30b0\u306e\u3057\u3084\u3059\u3044\u5f8c\u8005\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305a\u306f\u30c7\u30d0\u30c3\u30b0\u3057\u305f\u3044\u30da\u30fc\u30b8\u3092\u3001\u30b5\u30a4\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u958b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u72b6\u614b\u3067\u3001F12\u30ad\u30fc\u3092\u62bc\u4e0b\u3059\u308b\u3068\u3001\u958b\u767a\u8005\u30c4\u30fc\u30eb\u304c\u958b\u304f\u306e\u3067\u3001Application<\/code>\u30bf\u30d6\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u30bf\u30d6\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u3001\u5de6\u5074\u304b\u3089Background services<\/code>\u5185\u306b\u3042\u308bSpeculative loads<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u3059\u308b\u3068\u3001\u6982\u8981\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6982\u8981\u306b\u306f\u3001Speculative Loading\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3001\u4f55\u4ef6Speculative Loading\u304c\u884c\u308f\u308c\u3046\u308b(\u3042\u308b\u3044\u306f\u884c\u308f\u308c\u305f)\u304b\u306e\u4ef6\u6570\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n\u8a73\u7d30\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f?<\/h4>\n\n\n\n
\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u3001Speculative loads<\/code>\u306e\u6a2a\u306b\u3042\u308b\u4e09\u89d2\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u5c55\u958b\u3057\u3001Speculations<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n\u30c6\u30fc\u30d6\u30eb\u5185\u306b\u3042\u308b\u9805\u76ee\u306f\u305d\u308c\u305e\u308c\u3001<\/p>\n\n\n\n
\nURL<\/code>\u306fSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u5bfe\u8c61\u5148<\/li>\n\n\n\nAction<\/code>\u306f\u5148\u8aad\u307f\u307e\u305f\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u5225<\/li>\n\n\n\nRule set<\/code>\u306f\u3069\u3053\u304b\u3089\u3053\u306e\u30eb\u30fc\u30eb\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\nStatus<\/code>\u306f\u5b9f\u969b\u306b\u5148\u8aad\u307f\u3042\u308b\u3044\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u306e\u6709\u7121<\/li>\n<\/ul>\n\n\n\n\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001Speculations<\/code>\u306e\u4e0a\u306b\u3042\u308bRules<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u3001Speculative Loading\u306e\u6319\u52d5\u5b9a\u7fa9\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n\u3053\u308c\u3089\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306bSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u306e\u304b\u3001\u307e\u305f\u3001\u5148\u8aad\u307f\u3057\u3059\u304e\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>Speculative Loading\u306e\u69cb\u6210<\/span><\/h2>\n\n\n\nSpeculative Loading\u306b\u306f\u73fe\u6642\u70b9\u3067\u306f3\u7a2e\u985e\u306e\u5f37\u5ea6(eagerness<\/code>)\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u306f\u3001conservative<\/code>\u3001moderate<\/code>\u3001eager <\/code>(\u73fe\u5728\u306fimmediate<\/code>\u3068\u540c\u7fa9)\u3067\u3059\u3002\u5c06\u6765\u7684\u306b\u306feager<\/code>\u306e\u4e0a\u4f4d\u306bimmediate<\/code>\u304c\u4f4d\u7f6e\u3059\u308b\u4e88\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u307e\u305f\u3001\u5f37\u5ea6\u4ee5\u5916\u306b\u3082\u3001\u5148\u8aad\u307f\u3092\u3059\u308b\u304b\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u3059\u308b\u304b\u306e\u9078\u629e\u3082\u53ef\u80fd\u3067\u3059\u3002\u5148\u8aad\u307f\u306f\u4e8b\u524d\u306b\u30c7\u30fc\u30bf\u306f\u8aad\u307f\u8fbc\u3080\u304c\u30da\u30fc\u30b8\u306e\u8868\u793a\u3092\u751f\u6210\u3057\u3066\u304a\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u70b9\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u4e00\u6b69\u8e0f\u307f\u8fbc\u307f\u3001\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u8868\u793a\u3092\u4e8b\u524d\u306b\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
conservative<\/code>\u306f\u30af\u30ea\u30c3\u30af\u304c\u5b9f\u65bd\u3055\u308c\u305f\u6bb5\u968e\u3067\u521d\u3081\u3066\u767a\u52d5\u3057\u307e\u3059\u3002moderate<\/code>\u306f\u3001conservative<\/code>\u306e\u6761\u4ef6\u306b\u52a0\u3048\u3001\u5bfe\u8c61\u30ea\u30f3\u30af\u3092200\u30df\u30ea\u79d2\u30db\u30d0\u30fc\u3057\u305f\u5834\u5408\u3067\u3082\u767a\u52d5\u3057\u307e\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u7b49\u306f\u30db\u30d0\u30fc\u30a4\u30d9\u30f3\u30c8\u304c\u539f\u5247\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u3001\u5b9f\u8ceaconservative<\/code>\u3068\u540c\u7b49\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u3001eager<\/code>\u3068immediate<\/code>\u306f\u5f53\u8a72Speculation Rules<\/code>\u304c\u8aad\u307f\u8fbc\u307e\u308c\u6b21\u7b2c\u3001\u901f\u3084\u304b\u306b\u5148\u8aad\u307f\u3084\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u958b\u59cb\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u306a\u304a\u3001\u53d6\u5f97\u3092\u8a66\u307f\u3066\u3001HTTP 200\u7cfb\u4ee5\u5916(\u4f8b: 301, 302, 401, 403, 404, 500, 502, 503\u306a\u3069)\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30b3\u30fc\u30c9\u304c\u8fd4\u3063\u3066\u304d\u305f\u5834\u5408\u3001\u5148\u8aad\u307f\u30fb\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u5f53\u8a72\u30ea\u30bd\u30fc\u30b9\u306b\u304a\u3044\u3066\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u3001HTTP 204\u3042\u308b\u3044\u306f205\u306e\u5834\u5408\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u307f\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
<\/span>Speculative Loading\u306e\u5236\u7d04<\/span><\/h3>\n\n\n\n\u3055\u3089\u306b\u3001\u5148\u8aad\u307f\u3068\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u4ef6\u6570\u306b\u3082\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002\u5148\u8aad\u307f\u306feager<\/code>\u3068immediate<\/code>\u306e\u5834\u5408\u3067\u6700\u592750\u4ef6\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u6700\u592710\u4ef6\u307e\u3067\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002conservative<\/code>\u3068moderate<\/code>\u306e\u5834\u5408\u3055\u3089\u306b\u5c11\u306a\u304f\u3001\u305d\u308c\u305e\u308c2\u4ef6\u305a\u3064\u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u4e0a\u9650\u3092\u8d85\u3048\u308b\u3068\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u30c7\u30fc\u30bf\u306f\u53e4\u3044\u9806\u306b\u30e1\u30e2\u30ea\u304b\u3089\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5bfe\u7b56\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u3084\u30b5\u30fc\u30d0\u306b\u904e\u5ea6\u306a\u8ca0\u62c5\u3092\u304b\u3051\u306a\u3044\u3088\u3046\u306b\u914d\u616e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u307b\u304b\u5148\u8aad\u307f\u304c\u5b9f\u884c\u3055\u308c\u306a\u3044\u4ee3\u8868\u4f8b\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n- \u4f4e\u96fb\u529b\u30e2\u30fc\u30c9\u304c\u6709\u52b9\u306a\u5834\u5408<\/li>\n\n\n\n
- \u30c7\u30fc\u30bf\u30bb\u30fc\u30d0\u30fc\u304c\u6709\u52b9\u306a\u5834\u5408<\/li>\n\n\n\n
- \u30e1\u30e2\u30ea\u4e0d\u8db3\u306e\u5834\u5408\u7b49<\/li>\n<\/ul>\n\n\n\n
\u5148\u307b\u3069\u3082\u66f8\u304d\u307e\u3057\u305f\u901a\u308a\u3001\u5148\u8aad\u307f\u306f\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fbCPU\u30fb\u30e1\u30e2\u30ea\u3092\u7121\u99c4\u306b\u6d88\u8cbb\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300150%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u3055\u3089\u306b\u8ca0\u8377\u304c\u9ad8\u304f\u3001\u7279\u5225\u306a\u5bfe\u7b56(\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u691c\u77e5\u3059\u308b\u30b3\u30fc\u30c9prerenderingchange<\/code>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u7d44\u307f\u8fbc\u307f\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u9045\u5ef6\u3055\u305b\u308b\u306a\u3069)\u304c\u306a\u3055\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306b\u9650\u3089\u305a\u3001Javascript\u7b49\u3092\u5229\u7528\u3057\u305f\u30a2\u30af\u30bb\u30b9\u8a08\u6e2c\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300180%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>WordPress\u3067\u306eSpeculative Loading\u306e\u5b9f\u88c5<\/span><\/h2>\n\n\n\n\u3055\u3066\u3001WordPress 6.8\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30c6\u30fc\u30de\u3067\u3042\u308bTwenty Twenty-Five\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001\u5f53\u65b9\u3067\u6539\u884c\u304a\u3088\u3073\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u5165\u308c\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
{\n "prefetch":[\n {\n "source":"document",\n "where":{\n "and":[\n {\n "href_matches":"\\\/*"\n },\n {\n "not":{\n "href_matches":[\n "\\\/wp-*.php",\n "\\\/wp-admin\\\/*",\n "\\\/wp-content\\\/uploads\\\/*",\n "\\\/wp-content\\\/*",\n "\\\/wp-content\\\/plugins\\\/*",\n "\\\/wp-content\\\/themes\\\/twentytwentyfive\\\/*",\n "\\\/*\\\\?(.+)"\n ]\n }\n },\n {\n "not":{\n "selector_matches":"a[rel~=\\"nofollow\\"]"\n }\n },\n {\n "not":{\n "selector_matches":".no-prefetch, .no-prefetch a"\n }\n }\n ]\n },\n "eagerness":"conservative"\n }\n ]\n}<\/code><\/pre><\/div>\n\n\n\n\u3053\u308c\u3089\u304c\u610f\u5473\u3059\u308b\u3068\u3053\u308d\u3092\u65e5\u672c\u8a9e\u306b\u3059\u308b\u3068\u3001<\/p>\n\n\n\n
\n- HTML\u306a\u3069\u306e\u6587\u66f8\u306e\u30ea\u30f3\u30af\u3092\u3059\u3079\u3066\u5148\u53d6\u308a\u53d6\u5f97\u3059\u308b<\/li>\n\n\n\n
- \u305f\u3060\u3057\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u306f\u5148\u53d6\u308a\u53d6\u5f97\u304b\u3089\u9664\u5916\u3059\u308b\n
\n- WordPress\u306e\u7ba1\u7406\u753b\u9762\u7cfb\u306e\u30d5\u30a1\u30a4\u30eb<\/li>\n\n\n\n
- \/wp-content\/\u306e\u4e2d\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u307b\u3068\u3093\u3069<\/li>\n\n\n\n
- \u30af\u30a8\u30ea\u6587\u5b57\u5217\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u30da\u30fc\u30b8<\/li>\n\n\n\n
rel=\"nofollow\"<\/code>\u5c5e\u6027\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n\n\n\nno-prefetch<\/code>\u30af\u30e9\u30b9\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n<\/ul>\n<\/li>\n\n\n\n- \u30af\u30ea\u30c3\u30af\u3057\u3066\u304b\u3089\u521d\u3081\u3066\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b<\/li>\n\n\n\n
- \u8aad\u307f\u8fbc\u307f\u3092\u3059\u308b\u3060\u3051\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u3057\u306a\u3044\u3067\u304a\u304f<\/li>\n<\/ul>\n\n\n\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n
<\/span>\u30eb\u30fc\u30eb\u306e\u8ffd\u52a0\u30fb\u64cd\u4f5c<\/span><\/h3>\n\n\n\nWordPress\u306b\u304a\u3044\u3066\u3001\u3053\u308c\u3089\u306e\u6319\u52d5\u3092\u8a2d\u5b9a\u3059\u308b\u5148\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u8abf\u67fb\u3057\u305f\u3068\u3053\u308d\u3001\u307e\u3060\u516c\u8868\u3055\u308c\u3066\u3044\u306a\u3044\u6a21\u69d8\u3067\u3059\u3002\u3067\u3059\u304c\u3001\u7b46\u8005\u3068\u3057\u3066\u306f\u5b50\u30c6\u30fc\u30de\u306efunctions.php<\/code>\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001<\/p>\n\n\n\n\n- \u30b5\u30a4\u30c8\u3054\u3068\u306b\u30c6\u30fc\u30de\u3084\u6700\u9069\u5316\u3059\u308b\u3079\u304d\u9805\u76ee\u304c\u7570\u306a\u308b\u3053\u3068\u304b\u3089\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u306f\u9069\u5207\u3067\u306f\u306a\u3044\u3053\u3068<\/li>\n\n\n\n
- \u591a\u304f\u306e\u30b5\u30a4\u30c8\u306f\u65e2\u5b58\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u5229\u7528\u3057\u3066\u3044\u308b(=\u81ea\u4f5c\u3067\u306f\u306a\u3044)\u305f\u3081\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u7b49\u3067\u4e0a\u66f8\u304d\u3055\u308c\u3046\u308b\u30c6\u30fc\u30de\u306e
functions.php<\/code>\u306b\u66f8\u304f\u3053\u3068\u306f\u63a8\u5968\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n\n\n\n\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n
\u7279\u5b9a\u306e\u30da\u30fc\u30b8\u3092\u9664\u5916\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059:<\/p>\n\n\n\n
add_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths ) {\n $href_exclude_paths[] = '\/cart\/*'; \/\/\u3053\u3053\u3092\u66f8\u304d\u63db\u3048\u308b\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u884c\u3092\u8ffd\u52a0\u3057\u5bfe\u5fdc\n return $href_exclude_paths;\n }\n);\n\/\/\u3042\u308b\u3044\u306f\u3001prerender\u306e\u307f\u9664\u5916\u3057\u305f\u3044\u5834\u5408\nadd_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths, $mode ) {\n if ( 'prerender' === $mode ) {\n $href_exclude_paths[] = '\/personalized-area\/*';\n }\n return $href_exclude_paths;\n },\n 10,\n 2\n);<\/code><\/pre><\/div>\n\n\n\n\u5f37\u5ea6\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059:<\/p>\n\n\n\n
add_filter(\n 'wp_speculation_rules_configuration',\n function ( $config ) {\n if ( is_array( $config ) ) {\n $config['eagerness'] = 'moderate'; \/\/conservative\u304c\u6a19\u6e96\u3060\u304c\u3001moderate\u3084eager\u3001immediate\u306b\u5909\u66f4\u53ef\u80fd\n $config['mode'] = 'prerender'; \/\/prefetch\u304c\u6a19\u6e96\u3060\u304c\u3001prerender\u306b\u5909\u66f4\u53ef\u80fd\n }\n return $config;\n }\n);<\/code><\/pre><\/div>\n\n\n\n\u3055\u3089\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u8a2d\u5b9a\u3092\u7d30\u304b\u304f\u8abf\u6574\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059:<\/p>\n\n\n\n
add_action(\n 'wp_load_speculation_rules',\n function ( WP_Speculation_Rules $speculation_rules ) {\n $speculation_rules->add_rule(\n 'prerender', \/\/prerender\u304bprefetch\u304b\n 'my-moderate-prerender-url-rule', \/\/\u30eb\u30fc\u30eb\u540d\n array(\n 'source' => 'list', \/\/document\u306a\u3069\u304c\u3042\u308b\u304c\u3001\u5bfe\u8c61\u5148\u660e\u793a\u306e\u305f\u3081list\n 'urls' => array(\n '\/some-url\/', \/\/\u5bfe\u8c61URL\u306e\u30ea\u30b9\u30c8\n '\/another-url\/',\n '\/yet-another-url\/',\n ),\n 'eagerness' => 'moderate', \/\/conservative, moderate, eager, immediate\u304b\u3089\u9078\u629e\n )\n );\n $speculation_rules->add_rule(\n 'prerender',\n 'my-moderate-prerender-optin-rule',\n array(\n 'source' => 'document', \/\/HTML\u30d5\u30a1\u30a4\u30eb\u5185\u304b\u3089\u691c\u7d22\n 'where' => array(\n 'selector_matches' => '.moderate-prerender, .moderate-prerender a', \/\/.moderate-prerender\u3084\u305d\u306e\u30af\u30e9\u30b9\u306e\u3064\u3044\u305f\u30ea\u30f3\u30af\u3092\u5bfe\u8c61\u306b\u3059\u308b\n ),\n 'eagerness' => 'moderate',\n )\n );\n }\n);<\/code><\/pre><\/div>\n\n\n\n<\/span>\u53c2\u8003\u6587\u732e<\/span><\/h2>\n\n\n\n\n- Prerender Pages in Chrome<\/a><\/li>\n\n\n\n
- wp-includes\/speculative-loading.php<\/a><\/li>\n\n\n\n
- Speculation Rules API : MDN<\/a><\/li>\n\n\n\n
- Debug Speculation Rules with Chrome Devtools<\/a><\/li>\n\n\n\n
- Add Speculative Loading Support.<\/a><\/li>\n\n\n\n
- Speculative Loading in 6.8<\/a><\/li>\n<\/ul>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u30e6\u30fc\u30b6\u304c\u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u524d(\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u30db\u30d0\u30fc\u3057\u305f\u6bb5\u968e\u3084\u305d\u3082\u305d\u3082\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u6bb5\u968e)\u304b\u3089\u8aad\u307f\u8fbc\u307f\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u3001Largest Content Paint\u306e\u6570\u5024\u304c\u6539\u5584\u3057\u3001\u3072\u3044\u3066\u306fCore Web Vitals\u304c\u6539\u5584\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u3001WordPress\u30b5\u30a4\u30c8\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001Shopify\u3067Speculative Loading\u3092\u5c0e\u5165\u3057\u305f\u7d50\u679c\u6700\u592760\u30df\u30ea\u79d2\u306e\u9ad8\u901f\u5316\u304c\u3067\u304d\u305f\u3053\u3068\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3055\u3089\u306b\u30d6\u30e9\u30a6\u30b6\u5074\u3084\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/a>\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u6700\u9069\u5316<\/a>\u3082\u4f75\u305b\u3066\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u307e\u308b\u3067\u4e00\u77ac\u3067\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3088\u3046\u306a\u4f53\u611f\u901f\u5ea6\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n Speculative Loading\u306f\u305d\u306e\u6027\u8cea\u4e0a\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n Speculative Loading\u306f\u3001\u5b9f\u969b\u306b\u30af\u30ea\u30c3\u30af\u3057\u3066\u8868\u793a\u3055\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u5bb9\u91cf\u3084\u96fb\u529b\u6d88\u8cbb\u304c\u7121\u99c4\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u307e\u305f\u3001\u30b5\u30fc\u30d0\u5074\u3067\u3082\u901a\u4fe1\u304c\u5f93\u91cf\u8ab2\u91d1\u306e\u5834\u5408\u306b\u3082\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n \u305d\u306e\u305f\u3081\u3001\u898b\u5883\u306a\u304f\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n \u3055\u3089\u306b\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb\u306b\u52a0\u3048\u3066\u3001Google Analytics\u306a\u3069\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u3001HTTP\u30b5\u30fc\u30d0\u304b\u3089\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u3092\u8a08\u6e2c\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001Speculative Loading\u306f\u30e6\u30fc\u30b6\u30fc\u304c\u5b9f\u969b\u306b\u30da\u30fc\u30b8\u3092\u958b\u304b\u305a\u3068\u3082\u8aad\u307f\u8fbc\u307f\u3092\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u8a08\u6e2c\u304c\u56f0\u96e3\u306b\u306a\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u3001\u30da\u30fc\u30b8\u306b\u3042\u308bJavascript\u306a\u3069\u307e\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u3067\u3059\u306e\u3067\u3001\u7279\u5225\u306a\u51e6\u7406\u3092\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u304c\u6b63\u3057\u304f\u8a08\u6e2c\u3055\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u4ee3\u8868\u7684\u30c4\u30fc\u30eb\u3067\u3042\u308bGoogle Analytics\u306f\u5bfe\u5fdc\u304c\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u5b89\u5fc3\u3057\u3066\u5229\u7528\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n Speculative Loading\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u8a2d\u5b9a\u306e\u6700\u9069\u5316\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u4ee5\u4e0b\u306e\u3053\u3068\u3092\u62bc\u3055\u3048\u3066\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u6700\u5c0f\u5316\u3057\u306a\u304c\u3089\u3082\u52b9\u679c\u3092\u6700\u5927\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n Speculative Loading\u306e\u30c7\u30d0\u30c3\u30b0\u306b\u3064\u3044\u3066\u306f\u3001<\/p>\n\n\n\n \u4ee5\u4e0a\u306e\u4e8c\u70b9\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u3088\u308a\u30c7\u30d0\u30c3\u30b0\u306e\u3057\u3084\u3059\u3044\u5f8c\u8005\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u307e\u305a\u306f\u30c7\u30d0\u30c3\u30b0\u3057\u305f\u3044\u30da\u30fc\u30b8\u3092\u3001\u30b5\u30a4\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u958b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u6b21\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u30da\u30fc\u30b8\u3092\u958b\u3044\u305f\u72b6\u614b\u3067\u3001F12\u30ad\u30fc\u3092\u62bc\u4e0b\u3059\u308b\u3068\u3001\u958b\u767a\u8005\u30c4\u30fc\u30eb\u304c\u958b\u304f\u306e\u3067\u3001 \u3059\u308b\u3068\u3001\u6982\u8981\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6982\u8981\u306b\u306f\u3001Speculative Loading\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3001\u4f55\u4ef6Speculative Loading\u304c\u884c\u308f\u308c\u3046\u308b(\u3042\u308b\u3044\u306f\u884c\u308f\u308c\u305f)\u304b\u306e\u4ef6\u6570\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n \u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u3001 \u30c6\u30fc\u30d6\u30eb\u5185\u306b\u3042\u308b\u9805\u76ee\u306f\u305d\u308c\u305e\u308c\u3001<\/p>\n\n\n\n \u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001 \u3053\u308c\u3089\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306bSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u306e\u304b\u3001\u307e\u305f\u3001\u5148\u8aad\u307f\u3057\u3059\u304e\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n Speculative Loading\u306b\u306f\u73fe\u6642\u70b9\u3067\u306f3\u7a2e\u985e\u306e\u5f37\u5ea6( \u307e\u305f\u3001\u5f37\u5ea6\u4ee5\u5916\u306b\u3082\u3001\u5148\u8aad\u307f\u3092\u3059\u308b\u304b\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u3059\u308b\u304b\u306e\u9078\u629e\u3082\u53ef\u80fd\u3067\u3059\u3002\u5148\u8aad\u307f\u306f\u4e8b\u524d\u306b\u30c7\u30fc\u30bf\u306f\u8aad\u307f\u8fbc\u3080\u304c\u30da\u30fc\u30b8\u306e\u8868\u793a\u3092\u751f\u6210\u3057\u3066\u304a\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u70b9\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u4e00\u6b69\u8e0f\u307f\u8fbc\u307f\u3001\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u8868\u793a\u3092\u4e8b\u524d\u306b\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u306a\u304a\u3001\u53d6\u5f97\u3092\u8a66\u307f\u3066\u3001HTTP 200\u7cfb\u4ee5\u5916(\u4f8b: 301, 302, 401, 403, 404, 500, 502, 503\u306a\u3069)\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u30b3\u30fc\u30c9\u304c\u8fd4\u3063\u3066\u304d\u305f\u5834\u5408\u3001\u5148\u8aad\u307f\u30fb\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u5f53\u8a72\u30ea\u30bd\u30fc\u30b9\u306b\u304a\u3044\u3066\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u3001HTTP 204\u3042\u308b\u3044\u306f205\u306e\u5834\u5408\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u307f\u7121\u52b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u3055\u3089\u306b\u3001\u5148\u8aad\u307f\u3068\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u4ef6\u6570\u306b\u3082\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002\u5148\u8aad\u307f\u306f \u5148\u307b\u3069\u3082\u66f8\u304d\u307e\u3057\u305f\u901a\u308a\u3001\u5148\u8aad\u307f\u306f\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fbCPU\u30fb\u30e1\u30e2\u30ea\u3092\u7121\u99c4\u306b\u6d88\u8cbb\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300150%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n \u307e\u305f\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u3055\u3089\u306b\u8ca0\u8377\u304c\u9ad8\u304f\u3001\u7279\u5225\u306a\u5bfe\u7b56(\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u691c\u77e5\u3059\u308b\u30b3\u30fc\u30c9 \u3055\u3066\u3001WordPress 6.8\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30c6\u30fc\u30de\u3067\u3042\u308bTwenty Twenty-Five\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001\u5f53\u65b9\u3067\u6539\u884c\u304a\u3088\u3073\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u5165\u308c\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u304c\u610f\u5473\u3059\u308b\u3068\u3053\u308d\u3092\u65e5\u672c\u8a9e\u306b\u3059\u308b\u3068\u3001<\/p>\n\n\n\n \u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n WordPress\u306b\u304a\u3044\u3066\u3001\u3053\u308c\u3089\u306e\u6319\u52d5\u3092\u8a2d\u5b9a\u3059\u308b\u5148\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u8abf\u67fb\u3057\u305f\u3068\u3053\u308d\u3001\u307e\u3060\u516c\u8868\u3055\u308c\u3066\u3044\u306a\u3044\u6a21\u69d8\u3067\u3059\u3002\u3067\u3059\u304c\u3001\u7b46\u8005\u3068\u3057\u3066\u306f\u5b50\u30c6\u30fc\u30de\u306e \u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n \u7279\u5b9a\u306e\u30da\u30fc\u30b8\u3092\u9664\u5916\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059:<\/p>\n\n\n\n \u5f37\u5ea6\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059:<\/p>\n\n\n\n \u3055\u3089\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u8a2d\u5b9a\u3092\u7d30\u304b\u304f\u8abf\u6574\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059:<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":"<\/span>Speculative Loading\u306b\u3088\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u306f?<\/span><\/h2>\n\n\n\n
<\/span>\u30ea\u30bd\u30fc\u30b9\u306e\u6d6a\u8cbb<\/span><\/h3>\n\n\n\n
<\/span>\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u4ef6\u6570\u306e\u78ba\u8a8d\u56f0\u96e3<\/span><\/h3>\n\n\n\n
<\/span>\u3069\u3046\u3084\u3063\u3066\u8a2d\u5b9a\u3092\u6700\u9069\u5316\u3059\u308b\u304b<\/span><\/h2>\n\n\n\n
\n
prefetch<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\nprerender<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n\n
eager<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e\n\n
moderate<\/code>\u3067\u3082OK<\/li>\n<\/ul>\n<\/li>\n\n\n\nmoderate<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n<\/ul>\n<\/li>\n\n\n\nconservative<\/code>\u306e\u5229\u7528\u3092\u691c\u8a0e<\/li>\n\n\n\n<\/span>\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/span><\/h3>\n\n\n\n
\n
tail -f<\/code>\u306a\u3069\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\nApplication<\/code>\u30bf\u30d6\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u30bf\u30d6\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u3001\u5de6\u5074\u304b\u3089Background services<\/code>\u5185\u306b\u3042\u308bSpeculative loads<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n\u8a73\u7d30\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f?<\/h4>\n\n\n\n
Speculative loads<\/code>\u306e\u6a2a\u306b\u3042\u308b\u4e09\u89d2\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u5c55\u958b\u3057\u3001Speculations<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n\n
URL<\/code>\u306fSpeculative Loading\u304c\u5b9f\u884c\u3055\u308c\u3046\u308b\u5bfe\u8c61\u5148<\/li>\n\n\n\nAction<\/code>\u306f\u5148\u8aad\u307f\u307e\u305f\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u5225<\/li>\n\n\n\nRule set<\/code>\u306f\u3069\u3053\u304b\u3089\u3053\u306e\u30eb\u30fc\u30eb\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\nStatus<\/code>\u306f\u5b9f\u969b\u306b\u5148\u8aad\u307f\u3042\u308b\u3044\u306f\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u5b9f\u884c\u3055\u308c\u305f\u304b\u306e\u6709\u7121<\/li>\n<\/ul>\n\n\n\nSpeculations<\/code>\u306e\u4e0a\u306b\u3042\u308bRules<\/code>\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u3001Speculative Loading\u306e\u6319\u52d5\u5b9a\u7fa9\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<\/figure>\n\n\n\n<\/span>Speculative Loading\u306e\u69cb\u6210<\/span><\/h2>\n\n\n\n
eagerness<\/code>)\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u306f\u3001conservative<\/code>\u3001moderate<\/code>\u3001eager <\/code>(\u73fe\u5728\u306fimmediate<\/code>\u3068\u540c\u7fa9)\u3067\u3059\u3002\u5c06\u6765\u7684\u306b\u306feager<\/code>\u306e\u4e0a\u4f4d\u306bimmediate<\/code>\u304c\u4f4d\u7f6e\u3059\u308b\u4e88\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\nconservative<\/code>\u306f\u30af\u30ea\u30c3\u30af\u304c\u5b9f\u65bd\u3055\u308c\u305f\u6bb5\u968e\u3067\u521d\u3081\u3066\u767a\u52d5\u3057\u307e\u3059\u3002moderate<\/code>\u306f\u3001conservative<\/code>\u306e\u6761\u4ef6\u306b\u52a0\u3048\u3001\u5bfe\u8c61\u30ea\u30f3\u30af\u3092200\u30df\u30ea\u79d2\u30db\u30d0\u30fc\u3057\u305f\u5834\u5408\u3067\u3082\u767a\u52d5\u3057\u307e\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u7b49\u306f\u30db\u30d0\u30fc\u30a4\u30d9\u30f3\u30c8\u304c\u539f\u5247\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u3001\u5b9f\u8ceaconservative<\/code>\u3068\u540c\u7b49\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u3001eager<\/code>\u3068immediate<\/code>\u306f\u5f53\u8a72Speculation Rules<\/code>\u304c\u8aad\u307f\u8fbc\u307e\u308c\u6b21\u7b2c\u3001\u901f\u3084\u304b\u306b\u5148\u8aad\u307f\u3084\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u958b\u59cb\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>Speculative Loading\u306e\u5236\u7d04<\/span><\/h3>\n\n\n\n
eager<\/code>\u3068immediate<\/code>\u306e\u5834\u5408\u3067\u6700\u592750\u4ef6\u3001\u4e8b\u524d\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306f\u6700\u592710\u4ef6\u307e\u3067\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002conservative<\/code>\u3068moderate<\/code>\u306e\u5834\u5408\u3055\u3089\u306b\u5c11\u306a\u304f\u3001\u305d\u308c\u305e\u308c2\u4ef6\u305a\u3064\u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u4e0a\u9650\u3092\u8d85\u3048\u308b\u3068\u8aad\u307f\u8fbc\u307e\u308c\u306a\u304b\u3063\u305f\u30c7\u30fc\u30bf\u306f\u53e4\u3044\u9806\u306b\u30e1\u30e2\u30ea\u304b\u3089\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5bfe\u7b56\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u3084\u30b5\u30fc\u30d0\u306b\u904e\u5ea6\u306a\u8ca0\u62c5\u3092\u304b\u3051\u306a\u3044\u3088\u3046\u306b\u914d\u616e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u307b\u304b\u5148\u8aad\u307f\u304c\u5b9f\u884c\u3055\u308c\u306a\u3044\u4ee3\u8868\u4f8b\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n
prerenderingchange<\/code>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u7d44\u307f\u8fbc\u307f\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u9045\u5ef6\u3055\u305b\u308b\u306a\u3069)\u304c\u306a\u3055\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306b\u9650\u3089\u305a\u3001Javascript\u7b49\u3092\u5229\u7528\u3057\u305f\u30a2\u30af\u30bb\u30b9\u8a08\u6e2c\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u300180%\u4ee5\u4e0a\u306e\u78ba\u7387\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u306e\u307f\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<\/span>WordPress\u3067\u306eSpeculative Loading\u306e\u5b9f\u88c5<\/span><\/h2>\n\n\n\n
{\n "prefetch":[\n {\n "source":"document",\n "where":{\n "and":[\n {\n "href_matches":"\\\/*"\n },\n {\n "not":{\n "href_matches":[\n "\\\/wp-*.php",\n "\\\/wp-admin\\\/*",\n "\\\/wp-content\\\/uploads\\\/*",\n "\\\/wp-content\\\/*",\n "\\\/wp-content\\\/plugins\\\/*",\n "\\\/wp-content\\\/themes\\\/twentytwentyfive\\\/*",\n "\\\/*\\\\?(.+)"\n ]\n }\n },\n {\n "not":{\n "selector_matches":"a[rel~=\\"nofollow\\"]"\n }\n },\n {\n "not":{\n "selector_matches":".no-prefetch, .no-prefetch a"\n }\n }\n ]\n },\n "eagerness":"conservative"\n }\n ]\n}<\/code><\/pre><\/div>\n\n\n\n\n
\n
rel=\"nofollow\"<\/code>\u5c5e\u6027\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n\n\n\nno-prefetch<\/code>\u30af\u30e9\u30b9\u304c\u3064\u3044\u3066\u3044\u308b\u30ea\u30f3\u30af<\/li>\n<\/ul>\n<\/li>\n\n\n\n<\/span>\u30eb\u30fc\u30eb\u306e\u8ffd\u52a0\u30fb\u64cd\u4f5c<\/span><\/h3>\n\n\n\n
functions.php<\/code>\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001<\/p>\n\n\n\n\n
functions.php<\/code>\u306b\u66f8\u304f\u3053\u3068\u306f\u63a8\u5968\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n\n\n\nadd_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths ) {\n $href_exclude_paths[] = '\/cart\/*'; \/\/\u3053\u3053\u3092\u66f8\u304d\u63db\u3048\u308b\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u884c\u3092\u8ffd\u52a0\u3057\u5bfe\u5fdc\n return $href_exclude_paths;\n }\n);\n\/\/\u3042\u308b\u3044\u306f\u3001prerender\u306e\u307f\u9664\u5916\u3057\u305f\u3044\u5834\u5408\nadd_filter(\n 'wp_speculation_rules_href_exclude_paths',\n function ( $href_exclude_paths, $mode ) {\n if ( 'prerender' === $mode ) {\n $href_exclude_paths[] = '\/personalized-area\/*';\n }\n return $href_exclude_paths;\n },\n 10,\n 2\n);<\/code><\/pre><\/div>\n\n\n\nadd_filter(\n 'wp_speculation_rules_configuration',\n function ( $config ) {\n if ( is_array( $config ) ) {\n $config['eagerness'] = 'moderate'; \/\/conservative\u304c\u6a19\u6e96\u3060\u304c\u3001moderate\u3084eager\u3001immediate\u306b\u5909\u66f4\u53ef\u80fd\n $config['mode'] = 'prerender'; \/\/prefetch\u304c\u6a19\u6e96\u3060\u304c\u3001prerender\u306b\u5909\u66f4\u53ef\u80fd\n }\n return $config;\n }\n);<\/code><\/pre><\/div>\n\n\n\nadd_action(\n 'wp_load_speculation_rules',\n function ( WP_Speculation_Rules $speculation_rules ) {\n $speculation_rules->add_rule(\n 'prerender', \/\/prerender\u304bprefetch\u304b\n 'my-moderate-prerender-url-rule', \/\/\u30eb\u30fc\u30eb\u540d\n array(\n 'source' => 'list', \/\/document\u306a\u3069\u304c\u3042\u308b\u304c\u3001\u5bfe\u8c61\u5148\u660e\u793a\u306e\u305f\u3081list\n 'urls' => array(\n '\/some-url\/', \/\/\u5bfe\u8c61URL\u306e\u30ea\u30b9\u30c8\n '\/another-url\/',\n '\/yet-another-url\/',\n ),\n 'eagerness' => 'moderate', \/\/conservative, moderate, eager, immediate\u304b\u3089\u9078\u629e\n )\n );\n $speculation_rules->add_rule(\n 'prerender',\n 'my-moderate-prerender-optin-rule',\n array(\n 'source' => 'document', \/\/HTML\u30d5\u30a1\u30a4\u30eb\u5185\u304b\u3089\u691c\u7d22\n 'where' => array(\n 'selector_matches' => '.moderate-prerender, .moderate-prerender a', \/\/.moderate-prerender\u3084\u305d\u306e\u30af\u30e9\u30b9\u306e\u3064\u3044\u305f\u30ea\u30f3\u30af\u3092\u5bfe\u8c61\u306b\u3059\u308b\n ),\n 'eagerness' => 'moderate',\n )\n );\n }\n);<\/code><\/pre><\/div>\n\n\n\n<\/span>\u53c2\u8003\u6587\u732e<\/span><\/h2>\n\n\n\n
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