Enter a page URL
Type a domain or page URL. The checker validates safe HTTP and HTTPS URLs before scanning image tags.
Free Image SEO & Accessibility Tool
Free image alt text checker for finding missing alt tags.
Check a page’s images for missing alt attributes, empty alt text, lazy loading, image dimensions, and basic image SEO accessibility signals.
✓ No signup required
✓ On-page SEO checks
✓ Built-in abuse protection
How the image alt text checker works.
This tool fetches the public HTML for a page and scans image tags for alt text, lazy loading, and dimension attributes.
Scan image tags
The tool checks image src values, alt attributes, empty alt text, loading attributes, width, and height.
Review image SEO
Use the report to catch missing alt text, decorative image issues, and basic image optimization opportunities.
Common image SEO issues this tool can reveal.
Image alt text problems can affect accessibility, image SEO, user experience, and page quality signals.
Missing alt attributes
Meaningful images should usually have descriptive alt text so users and search engines understand the image.
Empty alt text
Empty alt text can be correct for decorative images, but important images should not be empty.
Missing image dimensions
Image width and height attributes can help reduce layout shifts while pages load.
Image alt text checker FAQ.
Quick answers about image alt text, accessibility, lazy loading, image SEO, and missing alt attributes.
What does this image alt text checker test?
It checks image tags for alt attributes, empty alt text, missing alt text, lazy loading, image dimensions, and sample image sources.
Why is image alt text important?
Alt text helps screen readers describe images and can also help search engines understand image content.
Should every image have alt text?
Every image should usually have an alt attribute. Decorative images can use empty alt text, while meaningful images should use descriptive alt text.
What is lazy loading?
Lazy loading delays loading off-screen images until they are needed, which can improve page speed.
Can missing alt text hurt SEO?
Missing alt text can reduce image accessibility and may limit how well search engines understand important images.
Can HostDroplet help with SEO-friendly hosting?
Yes. HostDroplet provides beginner-friendly hosting with SSL support, performance-focused setup, and helpful website guidance.
Need hosting built for clean website setup?
HostDroplet provides fast, secure, beginner-friendly hosting for WordPress websites, small business sites, blogs, and online projects. Start with hosting that supports SSL, performance, and clean SEO-friendly setup.
Start Hosting Now