Image Optimizer

It fetches a page's HTML and finds every <img> tag on it, then checks whether each one has an alt attribute with real descriptive text. It shows every image in a visual gallery along with a checkmark for alt text found or a warning icon for alt text that's missing, so you can spot gaps at a glance instead of reading through raw HTML.

Search engines can't literally see an image — alt text is the primary signal they use to understand what it shows, which is what lets that image show up in image search results at all. Missing alt text on meaningful images is a common, easy-to-fix gap that quietly costs sites a whole channel of search traffic.

Yes — it's also an accessibility requirement. Screen reader users rely on alt text to understand what an image shows, since they can't see it. A meaningful image with no alt text is effectively invisible to them, which is why alt text is one of the most basic and most commonly missed accessibility fixes on the web.

Every image that conveys meaning or information should. Purely decorative images — a background flourish, a spacer, a repeated icon with no informational value — should instead use an empty alt="" attribute, which tells screen readers to skip over it entirely rather than reading out something unhelpful like the filename.

No — it identifies exactly which images are missing alt text so you know what to fix, but writing good alt text requires understanding what the image actually shows and why it's on the page, which is something only you (or your CMS editor) can do accurately. The fix itself just means adding a short, honest description to each flagged image's alt attribute.