當(dāng)PageSpeed Insights檢測到網(wǎng)頁上的壓縮資源未與HTTP壓縮一同提供時，就會觸發(fā)此規(guī)則。

概覽

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• Apache:??mod_deflate
• Nginx: ??HttpGzipModule
• IIS：配置HTTP壓縮功能

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常見問題解答

PageSpeed Insights? ?? ?? ??? ??? gzip ???? ???? ??? ?????. ??? gzip ?? ???? ????? ???? ??? ??????. PageSpeed Insights? ??? ?? ??? ???? ??? ??? ??????

??? ??? ?????? ?????? ??? ????? ???? ????? ? ?? ??? ????? ? ????. PageSpeed Insights? ?????? ??? ??? ??? ???? ??? ???? ???, ??? ?????? ?????? ????? ? ?? ?? ??? ??? ?? ????? ????? ??? ????? ??(???? ??? ??? ???? ????? ? ???? ??? ??? ??? ???? ?? ???? ?? ? ??), ? ??? ??? ? ????.
要確定代理服務(wù)器是否為導(dǎo)致此問題的原因，您可以使用PageSpeed Insights Chrome ?? ??來檢查標(biāo)頭：

1. 在相關(guān)網(wǎng)頁上運(yùn)行PageSpeed。
2. 點(diǎn)擊?? ?????.
3. 展開標(biāo)為未壓縮的資源的網(wǎng)址。系統(tǒng)將顯示伴隨該資源一同顯示的標(biāo)頭。如果您看到一個名為Via、Forwarded或Proxy-Connection的標(biāo)頭，則表明代理服務(wù)器已提供該資源。

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