Image SEO & Alt Text Checker
Category: SEO & Analytics • Free Online Utility
Enter a URL to list its images with alt text, file size, dimensions and format. The checker flags missing or filename-like alt text, images over 300 KB, missing width and height that cause layout shift, images that could use WebP or AVIF, missing lazy loading and broken image links.
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View All →How to Use Image SEO & Alt Text Checker
1
Enter a page URL
Paste the page you want to audit.
2
Audit images
The tool lists every image with its alt text, file size, dimensions and format.
3
Fix the issues
Add descriptive alt text, compress large files, set width and height, and lazy-load images below the fold.
Frequently Asked Questions
Alt text describes an image for screen reader users and helps search engines understand it, which can bring traffic from image search.
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