Best SEO Checklist
ONE FOCUSED ACTION

Enable HTTP/3 and Brotli compression on CDN and server.

Core Web Vitals optimization

1 checklist items

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    Why this matters

    Modern protocols and compression reduce transfer size and latency, improving page speed.

    A STARTING-POINT EXAMPLE

    Hypothetical standard operating procedure

    Adapt this example to your site, access, tools, and change process. It is our suggested procedure, informed by the sources below.

    1. Configure CDN (e.g., CloudFront, Cloudflare) to enable HTTP/3 support on distribution.
    2. Enable Brotli compression for text-based content types (HTML, CSS, JS).
    3. Test response headers to confirm HTTP/3 and Brotli usage in varied browsers.
    4. Monitor network transfer sizes for critical page assets.
    5. Regularly review protocols after CDN or server updates for compliance.

    Watch for

    Lack of compression and HTTP/3 can increase load times and degrade Core Web Vitals.

    Definition of done

    All text-based resources deliver compressed over HTTP/3 with decreased transfer size.

    Sources & attribution

    1. Web Performance Checklist for Core Web Vitals by Hidekazu Konishi ↗

    Original checklist wording and example SOP by Best SEO Checklist, using source-grounded AI assistance. Editorial contact: Ted Kubaitis, @tedkubaitis on Teams. Check current source guidance before implementation.