Best SEO Checklist
ONE FOCUSED ACTION

Select modern image formats with fallbacks for compatibility.

Image SEO

1 checklist items

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    Why this matters

    Modern formats like WebP and AVIF offer superior compression and quality, improving load speed and SEO.

    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. Inventory image types and uses to determine appropriate format.
    2. Convert images to WebP or AVIF using build tools or CDNs.
    3. Implement <picture> elements with multiple source formats.
    4. Use SVG for icons and logos including accessibility titles.
    5. Test image delivery across browsers for proper fallback support.

    Watch for

    Serving legacy or incorrectly formatted images increases file size and slows pages unnecessarily.

    Definition of done

    All photos use WebP or AVIF with JPEG fallback, SVG for logos, PNG only when transparency is needed.

    Sources & attribution

    1. Image SEO: The Checklist That Wins Visibility and Speed ↗
    2. Image SEO Best Practices ↗

    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.