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Vercel

Vercel Speed Insights, 12 June 2026

Core Web Vitals belong in the launch process, especially for SEO-heavy content pages.

What's new?

Heavy embeds and admin bundles must stay separate from public pages. Core Web Vitals stay stable for SEO-heavy lessons only when third-party media loads lazily, admin code never lands in public routes, and layout boxes have fixed dimensions. Treat performance as part of shipping, not an afterthought.

Why it matters

Heavy embeds and admin bundles must stay separate from public pages. Core Web Vitals stay stable for SEO-heavy lessons only when third-party media loads lazily, admin code never lands in public routes, and layout boxes have fixed dimensions. Treat performance as part of shipping, not an afterthought.

What you should do now

Heavy embeds and admin bundles must stay separate from public pages. Core Web Vitals stay stable for SEO-heavy lessons only when third-party media loads lazily, admin code never lands in public routes, and layout boxes have fixed dimensions. Treat performance as part of shipping, not an afterthought.

Impact on workflows

Heavy embeds and admin bundles must stay separate from public pages. Core Web Vitals stay stable for SEO-heavy lessons only when third-party media loads lazily, admin code never lands in public routes, and layout boxes have fixed dimensions. Treat performance as part of shipping, not an afterthought.

Sources

Heavy embeds and admin bundles must stay separate from public pages. Core Web Vitals stay stable for SEO-heavy lessons only when third-party media loads lazily, admin code never lands in public routes, and layout boxes have fixed dimensions. Treat performance as part of shipping, not an afterthought.

Next step

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