Muhammad Zubair Abid - Full-Stack Developer & SEO Specialist

The Browser Lie: Visible to You, Hidden to Google

When your site opens in your browser but fails Google's speed test, local DNS cache is masking a backend failure. PageSpeed Insights is an external crawler it executes an un-cached, fresh DNS lookup from Google servers every time it runs. If routing fails at the origin, PageSpeed hits a brick wall.

01.The CNAME Culprit: Fix Cloudflare Routing

When migrating hosts, subdomains often lose their routing target. If your root domain resolves fine but the www version lacks a valid CNAME pointing back to origin, Google’s crawler hits a dead end.

Add this record inside your Cloudflare DNS panel:

Type	Name	Target	Proxy Status	TTL
CNAME	www	yourdomain.com	Proxied (Orange Cloud)	Auto

02.The IPv6 Conflict: Clean Stale AAAA Records

When switching hosting providers, legacy AAAA (IPv6) records often remain untouched in Cloudflare. Crawlers like PageSpeed Insights attempt IPv6 resolution first—if those records point to a deactivated server, the lookup times out.

Resolution Action Items

Log in to Cloudflare and open the DNS Records panel.
Filter by type and locate every AAAA record tied to root and www.
Delete any AAAA record pointing to your old host’s IP address.
Re-run PageSpeed Insights to verify the error is cleared.

03.The SSL Redirection Loop: Fix Encryption Modes

When Cloudflare’s SSL encryption mode is set to Flexible while your origin server enforces HTTPS, requests bounce infinitely between proxy and server. Browsers eventually hide this by serving a cached final state, but Google's fresh audit aborts after max redirects.

Fix: Switch Cloudflare SSL/TLS setting from Flexible to Full (Strict). This guarantees end-to-end encryption without triggering redirect loops.

Bonus: 90+ Score Without Redis (LiteSpeed Secrets)

Once DNS resolution and SSL loops are cleared, push your score into 90+ territory on standard hosting using targeted LiteSpeed Cache tweaks:

JS Defer & Delay: Shift non-critical JavaScript to user interaction triggers to dramatically improve Interaction to Next Paint (INP).
Database Cleanup: Clear post revisions, transient records, and orphaned metadata to speed up backend query execution.
Aspect Ratio Locking: Define static height/width bounds on image wrappers to protect Cumulative Layout Shift (CLS).

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