Ensuring everyone can understand content

Based on the Understandable principle:

Information and the operation of the user interface must be understandable.

It doesn't matter how visually appealing your product or site is, it doesn't matter what technology you used, and it doesn't even matter if you technically and systematically satisfied the bare minimum requirements of other guidelines. Straight up, if people cannot understand how to use your site, or the information it provides, then it's really just taking up space and resources. So let's talk about some basic guidelines to ensure that everyone can understand your content.

To be clear, accessibility is not a checklist or a tool, and doing everything exacly as documented here will not always guarantee an accessible, or compliant site. It's important to note that how you deliver accessibility is unique and completely dependant on your particular site content, and users.