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Speed & Core Web Vitals
Google uses Core Web Vitals as a direct ranking factor. We measure your real-user performance using Chrome UX Report field data — not just lab tests — and identify exactly what's slowing you down.
Methodology
What We Check
Largest Contentful Paint (LCP)
How quickly your main content loads. Target: under 2.5 seconds. We break down LCP into its 4 sub-parts to pinpoint exactly where the delay occurs.
Interaction to Next Paint (INP)
How responsive your page is to user interactions. Target: under 200ms. Critical for JavaScript-heavy sites and single-page applications.
Cumulative Layout Shift (CLS)
How much your page layout shifts while loading. Target: under 0.1. Layout shifts frustrate users and signal poor page quality.
Resource Optimization
Unused JavaScript analysis, image format optimization (WebP/AVIF), lazy loading strategy, and preload hint configuration.
Server Performance
Time to First Byte, cache-control headers, CDN configuration, and compression analysis.
Impact
Why It Matters
Since 2021, Core Web Vitals (LCP, INP, CLS) are confirmed Google ranking factors. Sites that fail these thresholds can be demoted in search results. But lab tests don't tell the full story — what matters is how real users on real devices experience your site. We pull actual Chrome user data to show your true performance profile.
Real Examples
Issues We Commonly Find
Hero image set to lazy loading instead of eager, delaying LCP
Adding priority={true} to the Next.js Image component reduced LCP by 800ms
Cache-Control set to no-cache on all pages including static marketing pages
Every visit triggers a full server render, adding 500ms+ to page loads unnecessarily
501 KiB of unused JavaScript shipped to mobile users
Increasing Total Blocking Time and degrading INP scores on mid-range devices
Ready to check your
performance?
Start with a free homepage analysis, or get the full picture with a comprehensive audit.