Missing and empty alt attributes
Inspect the signal in the rendered page.
SEO tool · Free in Chrome
Image Alt Text Checker for Page-Level SEO Audits
Search Toolbox helps you inventory every rendered image and separate meaningful content from decoration, directly on the live page. The goal is intentional alt behavior plus a fixable export grouped by page component, without hiding the evidence behind one overall score.
content teams, accessibility owners, ecommerce SEOs and developers
What you can verify
Generic or repeated text
Compare source code with the browser output.
Intrinsic versus rendered size
Find contradictions that block indexation.
Formats, loading and export
Export evidence your team can act on.
The observable problem
Counting non-empty alt attributes rewards keyword stuffing and incorrectly penalizes decorative images.
The useful outcome
intentional alt behavior plus a fixable export grouped by page component
Evidence on the real page
image alt text checker
A verifiable workflow, not a decorative score
Open the real page
Check the image alt text checker in the real session, staging environment or localhost — preferably the troublesome page, not the perfectly groomed demo.
Inspect the evidence
Check missing and empty alt attributes, generic or repeated text, intrinsic versus rendered size, formats, loading and export and connect signals that contradict each other.
Fix and retest
Aim for intentional alt behavior plus a fixable export grouped by page component. Change one rule at a time, then repeat the exact same check so you know what actually moved.
What this page does not pretend to do
For the image alt text checker, Search Toolbox inspects the active URL deeply. It is not a full-site crawler, backlink platform or rank tracker. Test several URLs when the issue comes from a template.
Frequently asked questions
What does the image alt text checker check?
It covers missing and empty alt attributes, generic or repeated text, intrinsic versus rendered size, formats, loading and export to deliver intentional alt behavior plus a fixable export grouped by page component.
Is the image alt text checker free?
Manual checks for the image alt text checker are included in the 60+ free tools. Only the optional contextual SEO Expert uses credits.
Does it work on staging and localhost?
Yes. The image alt text checker check runs on the page you are viewing, including logged-in sessions and non-public environments.
Is it a full SEO crawler?
For the image alt text checker, Search Toolbox inspects the active URL deeply. It is not a full-site crawler, backlink platform or rank tracker. Test several URLs when the issue comes from a template.
Verify it on your own page.
Manual checks for the image alt text checker are included in the 60+ free tools. Only the optional contextual SEO Expert uses credits.