Free tool
Accessibility-tree navigation probe
Paste a public URL. The probe walks the page’s accessibility tree the way many agents do and lists what it cannot name, reach or operate. It is a probe, not a simulation of blind users, and not a compliance check.
What it reports
- Controls with no accessible name
- Elements unreachable by Tab
- Focus traps
- Colour-only state
- What an agent “hears” at each step
For real-world accessibility, test with people who use assistive technology. We route that work to specialist partners and our Eval Army.