Image Optimization Focused on Core Web Vitals (2025)

How to reduce LCP, stabilize CLS and prevent INP spikes with disciplined, technical image decisions.

Improving LCP

Optimize the primary hero: preconnect, fetch priority, modern formats, weight targets.

Shift heavy conversions to build time or local processing (FotoLince) instead of runtime edge/server sync work.

Reserve space (aspect-ratio), coordinate font loading, dominant color placeholders.

Define per-template KB caps and monitor in CI to prevent silent regressions.

Prioritize first viewport, defer non-critical imagery via interaction or idle callbacks.

Inventory → normalize → convert → visual QA → measure → deploy.

FotoLince lets you test weight impact locally with zero upload latency. Iterate fast before CI integration.