Core Web Vitals is a ranking and conversion signal at the same time. Slow sites lose both search visibility and leads, and the fixes for both problems are usually the same handful of changes.
Check your current Core Web Vitals scores before planning fixes.
Run the website speed checkerNeed a structured performance pass across the whole site?
See the performance optimization serviceFix Largest Contentful Paint at the source
LCP problems are almost always about what loads first, not raw page weight. The largest visible element needs a direct, unblocked path to render.
- Serve the LCP image through `next/image` with `priority` set so it is not lazy-loaded.
- Preload the hero image or font if it is not discoverable early in the HTML.
- Avoid rendering the LCP element only after a client-side data fetch resolves.
Reduce Interaction to Next Paint
INP problems come from long JavaScript tasks blocking the main thread when a user interacts with the page.
- Break up large client components; move anything that does not need interactivity to a server component.
- Defer non-critical third-party scripts (chat widgets, analytics, tag managers) until after the page is interactive.
- Audit event handlers that trigger expensive re-renders on every keystroke or scroll event.
Eliminate Cumulative Layout Shift
CLS is caused by content that changes size or position after it first renders. It is almost always preventable with explicit sizing.
Measure in a way that matches real users
Lab scores and field data can disagree. Both matter, but field data from Search Console is what actually affects rankings.
- Track field data through the Chrome UX Report or Search Console's Core Web Vitals report, not lab scores alone.
- Test on throttled mobile conditions, since most real traffic is not on a fast desktop connection.
- Re-test after every significant deploy, not just once during a redesign.
