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Articles tagged with #pagespeed
Defer map JavaScript until intent, reserve container height, and treat pan and zoom as INP work—not a one-time Lighthouse pass on a static screenshot.
Render-blocking CSS, Cloudflare HTML rewrite, fixed hero heights, and Watcher domain report Summary before and after
PSI is a strong lab-and-field performance reference when you read the right rows. It is a weak substitute for information architecture, SEO completeness, or one-run truth.
CrUX field percentiles often look worse than a green Lighthouse run on the same URL. Here is why the gap is normal, what moves real-user Core Web Vitals, and what not to chase.
Lighthouse can look healthy while CrUX still needs improvement. Here is how we decide which signal to trust when the two disagree.
A green lab score on one day is not a monitoring system. It is one run that goes stale as soon as traffic, deployments, or third parties change
