Beside of the normal usage, Selenium WebDriver has a lot of extra capabilities. The one of the most clever and not usual use of end-to-end testing is checking if web page fulfills accessibility rules.
Accessibility is a very broad topic, but there are some guidelines how to create the web application, that people with some disabilities (visual, hearing or manual) can use it. If we learn how to do this and on what elements we should focus to provide the accessible web site, it turns out to be very simple. There is few number of rules keep and that’s it. Screen readers or other software will take care of the rest.