Why alt text matters
Alt text helps screen readers, search engines, and AI systems understand meaningful images. It is especially useful for blog images, infographics, product screenshots, and feature diagrams.
Image SEO tool
Free Image Alt Text Checker
Find missing image alt text and weak image signals before your startup pages, guides, and directory assets get crawled.
alt text checkerimage alt text checkerimage SEO checker
What this catches
- Images with no alt attribute
- Empty alt text that may need review
- Infographic and screenshot SEO gaps
Image SEO report
Image alt text check
Your image report will appear here.
Enter a public page URL to find missing alt text and image SEO gaps.
What this checker reviews
The checker scans public page images, counts images with alt text, missing alt attributes, empty alt text, and lists images that need review.
How this supports startup SEO
If your site uses infographics and screenshots, descriptive alt text can help image search, accessibility, and page context. It also makes shared resources easier for crawlers to understand.
Step by step
How to use the Image Alt Text Checker
Use this workflow to get more useful output from the tool and make the page stronger before you share, launch, or submit your startup to directories.
- 1
Enter one public page URL and run the image alt text check.
- 2
Review total images, images with alt text, missing alt attributes, and empty alt text.
- 3
Inspect the listed image URLs that need alt text review.
- 4
Add natural descriptive alt text for meaningful images and leave decorative images empty.
What to check before you move on
- ✓Meaningful images have descriptive alt text.
- ✓Decorative images use empty alt text rather than keyword stuffing.
- ✓Infographics and blog images explain the image topic.
- ✓Product screenshots describe what the screenshot shows.
Common mistakes to avoid
- !Leaving important blog images with no alt attribute.
- !Stuffing keywords into every image alt text.
- !Using filenames as alt text without context.
- !Ignoring image SEO on infographic-heavy pages.
SEO workflow
What to do after using this tool
A free tool can fix one part of your startup visibility stack. The bigger goal is to make your site easier to understand, easier to share, and easier to discover through search and trusted directory profiles.
Add clear alt text to guides, infographics, and product screenshots.
Check image sizes and compression after fixing alt text.
Use the meta tag checker to review the rest of the page.
Submit strong visual pages to directories after image SEO basics are handled.
Done-for-you option
Checked the SEO basics? Build the visibility layer next.
These free SEO tools help you clean up on-page signals. SubmitWell handles the off-page discovery work by manually listing your startup on relevant directories.
- Manual directory submissions for startup visibility
- Report with submitted links and screenshot proof
- Guaranteed DR growth options on paid plans
- 30-day money-back guarantee
Frequently asked questions
Should every image have alt text?+
Meaningful images should have descriptive alt text. Purely decorative images can use empty alt text so screen readers skip them.
Does image alt text help SEO?+
Alt text can help search engines understand image content and page context, especially for product screenshots, diagrams, and infographics.
What makes good alt text?+
Good alt text describes the image naturally and specifically without keyword stuffing.
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