The best way to think about accessibility in terms of using learn.gold is to ask yourself the question, can everybody who needs this information get this information with minimum fuss? On the whole it is very easy to access and relay text using phones, computers and tablets and you are almost certainly familiar with the synthetic voices they use. All they are doing is reading text and relaying it. They tend to fall down where there is insufficient information about the thing they are trying to deal with and this can happen with images and video in particular. So if you want to use these kinds of resources, you need to consider if everybody who needs access will get fair access.
A simple check for anything you are writing in to the text box (this is a text box) it to make sure the text box is expanded and click the check access button
You will either get an all clear message or a list of errors like the one below: