codeforboston
Website Accessibility Scrapers: recommendations
Some recommended ones:
https://tenon.io https://chrome.google.com/webstore/detail/axe/lhdoppojpmngadmnindnejefpokejbdd?hl=en-US
Tenon is great, but a pay service if that's a barrier. aXe is what powers Google Lighthouse under the hood. Other products in this space are Level Access' Accessibility Management Platform (AMP) and The Paciello Group's ARC. I haven't personally used AMP or ARC, but they're well-known companies in the accessibility space.
In a perfect world, you're going to want to have two scrapers, as one scraper may not check for things another will. I also find it's helpful to compare results to guard against things like false positives.
The scrapers I coded use Google Lighthouse, which is fine while we don't do a lot of queries in parallel per second
