Media & visuals
Bar graphs & data visualizations, images, logos, carousels, background video, background GIFs, embedded video
Thanos Core 3.5
Thanos Web Accessibility AI Agent
We have trained Thanos to understand the general notion that there needs to be a balance between design and web accessibility. Not all errors are equal, and we know the difference. There are clear differences between usability issues and genuine violations of the Web Content Accessibility Guidelines (WCAG). We know how to distinguish the two, and that distinction matters: it keeps the AI Agent focused on making relevant web accessibility fixes that have an impact, instead of chasing cosmetic noise.
Why it matters
About one person in six worldwide (an estimated 1.3 billion people) experiences significant disability (WHO). Those are customers, employees, & investors. When your site isn't accessible, you're turning them away at the door, & most will never tell you why they left.
The legal exposure is real & growing. Plaintiffs have filed more than 4,000 digital accessibility lawsuits every year since 2021, 4,187 in 2024 alone (UsableNet), & the European Accessibility Act began enforcement in June 2025 for businesses serving EU customers. Accessibility is no longer a nice-to-have; it's a compliance line item.
There's an upside, too. The same work that removes barriers (clear structure, readable text, working keyboard navigation) makes your site easier for everyone to use, easier for search engines to understand, & harder for competitors to beat. An accessible website doesn't just avoid lawsuits. It wins customers.
Web accessibility AI Agent workflow
- AI Agent
- Playwright
- axe-core
- WAVE
- WCAG rules
- AI interprets findings
- AI prepares website fixes
- Human approval
- Re-tests
How it works
The AI Agent audits your pages against WCAG 2.2 AA, checking things like alt text, keyboard navigation, color contrast, and focus indicators. It separates genuine accessibility barriers from minor usability quirks, then drafts fixes for the real barriers. Every fix waits for a human's approval before it reaches your visitors.
Audit checklist
Twenty-six elements. Zero hiding places.
The AI Agent checks every element type on your page against WCAG 2.0, 2.1, and 2.2, Levels A and AA. The checklist grows with the standards: when WCAG 2.3 is published, its criteria slot into the same framework.
Player controls
Play, pause, volume, closed captions, audio description
Links & navigation
Links, anchor links, email links, link distinguishability, social media links, click-to-call links, menu bar, hamburger menu
Forms & inputs
Radio buttons, text input fields, accordions
Documents & text
PDFs, Word documents, trademark & copyright symbols
Paid clients only
Human-in-the-loop, always
Automated scans catch a lot, but some barriers only a human can judge. For every paid ThanosLab client, a human reviewer personally checks the elements below on every audit. This is how we go beyond automated scans, and it is included only with paid ThanosLab plans.
Keyboard navigation
Tab through every page end to end, confirm a visible focus indicator, no keyboard traps, & a logical tab order
Video & audio
Verify closed captions are present & accurate, & that audio descriptions exist where the visuals carry meaning
Documents
Manually check PDFs & Word documents for tags, reading order, & screen reader compatibility
Screen reader review
Listen to key flows with a real screen reader to confirm headings, landmarks, & announcements make sense
Alt text quality
Judge whether alt text actually describes the image, not just whether the attribute exists
Real task completion
Complete core tasks like forms, checkout, & booking using only assistive technology, the way your visitors would
From findings to managed remediation
Accessibility AI doesn't stop at finding problems. It turns findings into managed remediation work: detect barriers, group root causes, propose fixes, route them for approval, retest changes, preserve evidence, & monitor for regressions.
SMBs get a site that works for everyone; agencies get WCAG coverage across every client. See how we work with agencies.
Frequently asked questions
Straight answers about how the accessibility audit works & where humans stay in the loop.
Free Scan available on the Web Accessibility AI Scanner.
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