SEO Tools / Image Alt Text Checker
GIMSEO FREE SEO TOOL

Free Image Alt Text Checker

Check image ALT coverage on a public webpage and quickly spot missing alternative text.

Why does image ALT text matter?

Alternative text describes an image when it cannot be seen and can improve accessibility. It also gives search engines contextual information about an image. Decorative images may legitimately use empty ALT text, so automated checks should be reviewed in context.

How to use the Image Alt Text Checker

  1. Enter the URL, text or details requested by the tool.
  2. Run the check or generator.
  3. Review the result and apply changes only after checking them against your site and content.

SEO guidance

Use this tool as one part of an SEO workflow. Automated checks are useful for finding implementation problems quickly, but they do not replace manual review of search intent, content quality, crawlability, internal linking and the overall site architecture.

Frequently asked questions

Is this tool free?

Yes. The standalone checker page is available without an API key.

Can I check any website?

The tool is designed for publicly accessible HTTP or HTTPS pages. Private, local and reserved network addresses are blocked.

Does the result guarantee Google rankings?

No. These checks identify implementation issues and provide practical diagnostics; search rankings depend on many factors.

What does the score mean?

It is a weighted diagnostic score based on the checks included in this version. It is not a Google score.