Published April 29, 2026 · Pageflare Team · 1 min read
A Practical Edge Optimization Checklist
A concise checklist for reducing TTFB, payload size, and render blocking before every release.
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Every release should pass a small set of performance checks before going live.
1) Validate caching headers
Make sure immutable assets are cached aggressively and HTML is revalidated quickly.
2) Trim unused JavaScript
Ship only what is needed for above-the-fold interactions. Delay non-critical islands and third-party scripts.
3) Protect your Core Web Vitals budget
Track LCP, CLS, and INP in CI and alert on regressions.
4) Keep images format-aware
Use AVIF/WebP where supported, and ensure responsive srcset values to avoid overserving.
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