Image Alt Text Checker

Check a page's images for missing alt text, broken files, outdated formats, and SEO issues to improve accessibility, page speed, and image search visibility.

Want to check the whole page? Try the On-Page SEO Checker.

Features

Alt Text Checker

Detects images missing alt text to support screen reader accessibility and improve search engine rankings in image search.

Missing Src Value Detection

Flags image tags with empty or missing src attributes so you can clean up broken markup and ensure all visuals render properly.

Keyword Targeting

Scans image alt attributes for your target keyword to help maximise your search visibility in Google Image search results.

Next-Gen Format Analysis

Checks whether images use modern formats like WebP or AVIF instead of older legacy formats (JPEG/PNG) to keep file sizes lean and page speeds fast.