Incorrect ARIA can actually cause more accessibility issues. Learn what else everyone should know about ARIA plus tips for using ARIA.

ARIA roles and attributes can make your website more accessible, if you know what you're doing.

There are certain situations where ARIA is a good (and maybe the only) way to go. But if done wrong, usage of ARIA often leads to even worse accessibility. Especially accessibility novices tend to misuse ARIA to "optimise" smelly code.