[null,null,["最后更新时间 (UTC):2025-07-25。"],[],["The content explains that multiple redirects slow down page rendering due to added HTTP request-response cycles and potential DNS lookups, TCP handshakes, and TLS negotiations. It recommends minimizing redirects and using responsive design to avoid them. When redirects are required, users should consult guidelines on redirects and user-agent detection. The document also notes that PageSpeed Insights version 4 is deprecated, and version 5 should be used instead. Lastly, it guides users to Stack Overflow and a mailing list for feedback.\n"],null,[]]