Free Image Alt Text Coverage

Share of images with non-empty alt text.

Measure alt attribute coverage for accessibility and image SEO.

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Instant results for any public URL. We may email follow-up tips; no credit card required for this check.

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About this free image alt coverage

Alt text describes images for accessibility and gives crawlers context. Large galleries with missing alts miss image search and WCAG compliance.

Measure what share of images on a page have non-empty alt attributes.

What it checks

  • Total images vs images with alt text
  • Coverage percentage on the sampled page

Why it matters for SEO

  • Accessibility lawsuits and brand risk on public sites
  • Image SEO and context for Google Images
  • Better UX when images fail to load

How to use this tool

  1. Scan product, blog, and gallery templates.
  2. Add descriptive alts — avoid keyword stuffing.
  3. Use empty alt only for purely decorative images.

Common issues we help you catch

  • CMS uploads without alt workflow
  • Duplicate alts like "image1" on every file
  • Icons and spacers missing decorative alt=""

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Frequently asked questions

Should every image have alt text?
Informative images need descriptive alt. Decorative images should use alt="" so screen readers skip them.