[mltony]

None that I'm aware of. The problem is checking whether a web site is accessible is a manual operation and therefore time-consuming. And it often happens that companies break accessibility, and then they fix it, and then they break it again...

[flattone]

Interesting. Accessibility sounds like an important indexing signal for search engines. At internet scale companies this seems pitch-worthy to discuss building some training data annotated and building out some automated indexing engine for accessible only filter for results.

[propelol]

Google do reward you for following web accessibility best practices, but it doesn't know if the actual experience is accessible.