SEO18 giugno 2026·7 min di lettura
Core Web Vitals 2026: what changed and how to prepare
INP replaced FID, LCP is still king. The 2026 thresholds and the technical checklist to keep your rankings.
What changed in 2026
INP (Interaction to Next Paint) is now the official responsiveness metric. Good threshold: <200ms. LCP under 2.5s and CLS under 0.1 remain unchanged. Google uses CrUX real-user data as a secondary but decisive ranking signal.
The 5 highest-impact technical levers
1) AVIF/WebP images with explicit dimensions. 2) Self-hosted fonts with font-display:swap. 3) Third-party JS deferred or offloaded to a web worker (Partytown). 4) Aggressive CDN cache. 5) Prefetch critical routes in SPAs.
KeywordsCore Web VitalsINPLCPSEO performance 2026
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