Website Audit
Image ALT Checker
Scan a page for images and report missing or empty ALT attributes.
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The Image ALT Checker scans any page and reports every image, flagging those with missing or empty ALT text — the most common accessibility and image-SEO issue.
What is the Image ALT Checker?
ALT text is what Google reads to understand an image and what screen readers announce to visually impaired users. Missing ALT loses image-search traffic and breaks accessibility. This tool gives you a one-screen view of every image on a page and its ALT status.
How to use the Image ALT Checker
Steps
- Enter the URL.
- Click Scan.
- For every flagged image, write descriptive ALT text and republish.
Benefits
- Improve accessibility scores.
- Win Google Images traffic.
- Pass Lighthouse audits.
Use cases
- Pre-publish QA.
- Auditing imported posts.
- Accessibility compliance reviews.
Pro tips
- Describe the image — do not just stuff keywords.
- Decorative images may use empty alt="" intentionally.
- Keep ALT under 125 characters.
Frequently asked questions
Does ALT text affect SEO?
Yes — for image search and on-page relevance.
Should every image have ALT?
Every meaningful image, yes. Decorative images may use alt="".
Can I just put the keyword?
No — write a real description that happens to include the keyword.
Related SEO tools
- Broken Link Checker — Find 404 links on any page.
- Internal Link Checker — List internal links and their anchor text.
- Redirect Checker — Trace redirect chains and final status codes.
- Basic Crawl Analyzer — Lightweight crawl: titles, meta, status (max 25 pages).