Getting a 408 HTTP Timeout Error – How to Fix It? or What Causes a 408 HTTP Error and How Do You Reso

408 http timeouts drove me insane until I realized my CDN (not Cloudflare) was the issue. The TTL was too low, causing constant revalidation.

Increased TTL and added stale-while-revalidate headers. Fixed it overnight.

Maybe check your CDN settings? Also, Blackfire.io is great for profiling backend slowness.