/tech/ - Technical SEO

if u notice high cls on mobile, check if ur critical css is actually being applied before the main stylesheet loads. many developers rely on auto-inlining tools that often fail to prioritize above-the-fold styles correctly. try using puppeteer to capture the computed styles of ur primary viewport elements during a headless crawl.
>don't just trust what you see in the devtools desktop view.
it is easy to overlook how late-discovered stylesheets trigger layout shifts once the full cssom is constructed. always verify via a mobile user agent simulation to catch these rendering delays before they hit production.