gov.uk is the quintessential example, but I'm not sure it meets the bar for "popular". Sure, lots of people use it, but that's because they have to. I don't re

gov.uk is the quintessential example, but I'm not sure it meets the bar for "popular". Sure, lots of people use it, but that's because they have to. I don't rely on accessibility tools myself(outside of Vimium for keyboard navigation) but I get the impression that Twitter is pretty well done. In between adding support for alt tags on user uploaded content, actually implementing a custom focus language, and bespoke screen reader labelling they seem to at least care about it.