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Web Development · 8 min read

The Core Web Vitals checklist we use on every launch

LCP, INP and CLS explained, with the fixes that move the needle most.

Speed is a ranking factor and a conversion factor. We treat Core Web Vitals as launch requirements, not nice-to-haves.

For LCP, prioritize the hero image, preload key fonts and remove render-blocking scripts. For INP, break up long tasks and defer non-critical JavaScript. For CLS, reserve space for images, embeds and banners.

Re-test on real mobile devices and on a throttled connection. Lab scores are a starting point; field data is what search engines use.

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