How many websites pass the Img Alt Coverage check?
Based on 596 audited sites · Updated 2026-07-16
95% confidence interval: 40%–48%
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
56% of audited sites need attention on img alt coverage (334 of 596 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 44% 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.
53.3% of audited E-Commerce sites pass this check (n=30), compared with 25.6% of Finance & Banking sites (n=39).
| Industry | Pass rate | Avg score | Sites |
|---|---|---|---|
| E-Commerce | 53.3% | 69.6 | 30 |
| Media & Entertainment | 48.8% | 73.8 | 84 |
| Technology | 43.5% | 72 | 278 |
| Education | 43.3% | 71.8 | 30 |
| Travel & Hospitality | 39.2% | 74.8 | 51 |
| Finance & Banking | 25.6% | 72.8 | 39 |
| Energy & Utilities | 100% | 69.7 | 3limited |
| Retail | 66.7% | 78.3 | 3limited |
| Recruitment & HR | 66.7% | 80 | 3limited |
| Automotive | 60% | 75.6 | 5limited |
Related Checks
Run a free audit to see whether your site passes this check, or browse the leaderboard and the audited-sites directory.