Image SEO Analyzer

Image SEO Analyzer lists every <img> element on a page with its alt text, declared dimensions, loading attribute and file name, and names what is wrong with each one.

The findings are per image and specific: a missing alt attribute as distinct from an empty one, an alt over 125 characters, an alt opening with "image of", a file name matching the generic patterns (img, DSC, screenshot, untitled and the rest), a name containing spaces or capitals, absent width and height, and any format that is not WebP, AVIF or SVG. A format breakdown counts extensions across the whole page, which is how you see how much is still JPEG or PNG. The limit that matters: no image file is downloaded, so the dimensions reported are the declared HTML attributes and the real pixel size and byte weight are never measured.

Give it a URL and ShortTrick's server fetches the page HTML through the inspect route; the images themselves are never requested, by us or by you, so no image host sees a visit. Paste the markup and no request is made at all. Past the first 200 images only the per-item list is capped — the totals stay complete.

Finding every image on a page with no alt text, auditing file names before an image-search push, listing which images still lack width and height, and measuring how far a WebP migration has actually got.

Also known as: audit image seo · check missing alt tags · optimize images for google · image alt checker