Free Image Alt Text Checker
Paste any page URL to see every image and whether its alt text is missing or generic.
Free · No signup · Checks one page
What this checks
Lists the content images on the page (SVGs and inline images are skipped) and flags any with a missing alt attribute or generic alt text such as "image" or "photo". Empty alt="" is treated as correct, because that is how decorative images should be marked.
It's one of the 35 checks in the free AI Visibility Checker, which scores a page on everything AI engines look at.
Image Alt Text Checker FAQs
What is alt text?
Alt text is the alt attribute on an image. Screen readers read it aloud, and search engines and AI crawlers use it to understand what the image shows.
What makes good alt text?
A short, specific description of what the image shows and why it's there, for example "Dashboard showing AI referral traffic by engine" rather than "image".
Should every image have alt text?
Every meaningful image should. Purely decorative images should use an empty alt="" so screen readers skip them.
Does alt text help AI visibility?
Yes. Multimodal AI engines and image search rely on alt text to interpret images, and it is a core accessibility requirement.