Missing image alt text kills accessibility and hurts SEO. You won’t always know it’s broken.
Google indexes over 80% of images without alt text anyway, but that doesn’t mean they rank. The real issue is you’re leaving traffic on the table by ignoring one of the easiest fixes.
What Is a Image Alt Checker?
Image Alt Checker is a free browser-based tool that scans any webpage and flags every image missing alt text. You don’t need an account or API key—it just works.
It loads the page, analyzes every tag, and shows you exactly which ones have empty, missing, or suspiciously short alt attributes.
Why It Matters for SEO
Google uses alt text as a ranking signal in Image Search. Pages with fully described images rank higher 63% more often than those without.
If your product images don’t have alt text, you’ll miss out on long-tail traffic like “blue running shoes for flat feet.” Most people miss that image search drives 22% of all mobile searches.
Here's what actually happens: crawlers skip contextless images, screen readers stay silent, and you lose both users and rankings.
How to Use It
- Go to https://scrawl.tools/tools/image-alt-checker (no login needed)
- Paste your URL and hit “Check”
- Review the report showing all images and their alt status
The entire process takes under 30 seconds. This tool is free and runs client-side—your data never hits a server.
What the Results Tell You
Each image is listed with its src, current alt value, and a warning if it’s missing or empty. You’ll see thumbnails so you can verify context.
Icons, spacers, and decorative images flagged as missing alt should have empty alt="" to pass accessibility standards. The tool helps you tell the difference between an error and intentional omission.
You’ll also spot images with junk alt like “image123.jpg” or “img_001.png”—Google hates that stuff.
3 Mistakes Most People Make
- They assume CMS defaults are enough. WordPress auto-generates alt text from filenames, but “DSC00458.jpg” isn’t helpful. You have to manually fix each one.
- They skip SVGs. Most alt checkers don’t catch inline SVGs, but this tool does. And yes, SVGs need accessible labels too.
- They think “decorative” means “ignore.” Images like spacers still need alt="" to signal intent to screen readers. Leaving them blank looks like a mistake.
Here’s what actually happens: sites with full alt text audits fix 90% of gaps in under an hour. That’s less time than setting up a new ad campaign.
Missing image alt text is a silent rank limiter. It’s not flashy, but it’s effective when fixed.
Try the Image Alt Checker now—it’s free, no login needed. You’ll find issues you didn’t know existed.
