Speed is user experience, and user experience is a ranking input. Google's Core Web Vitals turn "my site feels slow" into three measurable numbers — and improving them lifts not just rankings but conversions, because visitors abandon slow pages long before they buy.

The Three Metrics, Translated

  • LCP (Largest Contentful Paint) — how quickly the main content appears. Target: under 2.5 seconds.
  • INP (Interaction to Next Paint) — how quickly the page responds when users tap or click. Target: under 200 ms.
  • CLS (Cumulative Layout Shift) — how much the page jumps around while loading. Target: under 0.1.

Fixing LCP: Get the Hero on Screen Fast

  • Compress hero images aggressively and serve modern formats (WebP/AVIF, or crisp SVG).
  • Preload the hero image and critical fonts.
  • Eliminate render-blocking scripts; defer everything non-essential.
  • Use decent hosting — no optimisation outruns a slow server response.

Fixing INP: Stop Making the Browser Think So Hard

  • Audit third-party scripts; every chat widget and tracker costs interactivity.
  • Break long JavaScript tasks into smaller chunks.
  • Load below-the-fold widgets only when they scroll into view.

Fixing CLS: Reserve the Space

  • Always set width and height attributes on images and embeds.
  • Never inject banners or ads above existing content after load.
  • Preload fonts and use font-display strategies that avoid text jumps.

Beyond Vitals: The Technical SEO Multipliers

Speed sits inside a bigger technical picture. While you are in there, verify: clean crawlable architecture, correct canonical tags, one indexable version of every page, structured data on key templates, and a sitemap that lists only live, working URLs. Technical SEO rarely produces dramatic overnight jumps — instead it raises the ceiling on everything else you do.

How to Measure Honestly

Lab tools are useful for debugging, but judge yourself on field data — what real visitors experience, as reported in Search Console's Core Web Vitals report. Fix the templates with the most affected URLs first: one template fix often heals thousands of pages at once.

If this is deeper than you want to go yourself, our technical SEO service handles the entire stack — audit, fixes and verification.