WebϖʔδͷύϑΥʔϚϯε • Google LighthouseʹΑΔͱ[1][2] 5 ࢦඪ આ໌ First Contentful Paint PageʹΞΫηε͔ͯ͠Β͡Ίʹจࣈը૾͕ඳը͞ΕΔ·Ͱͷ࣌ؒ Speed Index Pageͷඳը͢ΔΛࣔ͢ࢦඪ Time to Interactive Page͕ૢ࡞Ͱ͖Δ·Ͱͷ࣌ؒ First Meaningful Paint Pageͷίϯςϯπ͕දࣔ͞ΕΔ·Ͱͷ࣌ؒ First CPU Idle PageඳըΛߦ͏εϨου͕͡ΊʹΞΠυϧঢ়ଶʹͳΔ·Ͱͷ࣌ؒ Estimated Input Latency ϢʔβͷೖྗԆ 1. https://github.com/GoogleChrome/lighthouse