[null,null,["上次更新時間:2024-09-03 (世界標準時間)。"],[[["This documentation applies to a deprecated version of PageSpeed Insights (v4) and will be shut down soon; users should refer to the latest version (v5)."],["The primary focus of this document is to explain how enabling GZIP compression can significantly improve website performance by reducing file sizes."],["PageSpeed Insights may report compression issues due to interference from proxy servers or anti-virus software affecting the headers returned to the client."],["Modern browsers inherently support GZIP compression, so enabling it on your web server is crucial for optimization."],["This page offers guidance and links to resources on how to enable GZIP compression for various web servers like Apache, Nginx, and IIS."]]],["PageSpeed Insights flags resources served without `gzip` compression, which can reduce response size by up to 90%. Modern browsers support `gzip`, improving download time and data usage. To resolve this, enable and test `gzip` on your server, using tools like `mod_deflate` for Apache, `ngx_http_gzip_module` for Nginx, or configure HTTP compression in IIS. Proxy servers or anti-virus software can interfere with compression, impacting PageSpeed Insights' results.\n"]]