This rule is triggered when PageSpeed Insights detects that the system needs to make more network round trips to render the first screen content of a web page.
If the amount of data required exceeds the limit of the initial congestion window, the system needs to make more round trips between the server and the user's browser. If the user is using a network with a long delay time (for example, a mobile network), this problem will seriously delay the loading of web pages.
請首先加載網(wǎng)頁的主要內(nèi)容。結(jié)構(gòu)化網(wǎng)頁,以便服務(wù)器發(fā)出的初始響應(yīng)能發(fā)送必要數(shù)據(jù),從而迅速呈現(xiàn)網(wǎng)頁的關(guān)鍵部分并暫緩呈現(xiàn)其余部分。這可能意味著,您必須將CSS拆分為兩個部分:負責(zé)調(diào)整內(nèi)容ATF部分的格式的內(nèi)嵌部分,以及可暫緩呈現(xiàn)的部分。
參考以下示例,了解有關(guān)如何結(jié)構(gòu)化網(wǎng)站以提高加載速度:
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