How many websites pass the Img Alt Coverage check?
Based on 585 audited sites · Updated 2026-07-11
95% confidence interval: 41.3%–49.4%
Why This Matters
LLM Discoverability
Alt text allows AI vision and text models to understand what images depict, enabling accurate image-to-content associations; pages with good alt coverage build richer entity knowledge graphs.
SEO Impact
Image alt text is a primary on-page signal for image search ranking; comprehensive alt coverage also improves accessibility, which is a direct input to Google's page experience score.
What To Do Next
54.7% of audited sites need attention on img alt coverage (320 of 585 sites are warning or failing).
- Prioritize img alt coverage on templates that create many URLs, because one template fix can improve a large share of html extractability & main content clarity.
- After changing the page, re-run the audit and compare the observed value for this check instead of relying on visual inspection alone.
- Use the 45.3% pass rate as a benchmark: if your site fails here, passing the check moves it closer to the visible majority of crawlable, AI-readable pages.
Status Breakdown
Compliance Trend
Daily pass, warning, and failure rates across benchmark snapshots (up to 90 days).
Industry Breakdown
How different industries perform on this check.
53.1% of audited E-Commerce sites pass this check (n=32), compared with 26.3% of Finance & Banking sites (n=38).
Related Checks
Run a free audit to see whether your site passes this check, or browse the leaderboard and the audited-sites directory.