Google Search likely does not use ARIA Accessible Rich Internet Applications, for ranking or even indexing purposes, according to both John Mueller and Martin Splitt at Google.

ARIA is a set of attributes you can add to HTML elements that define ways to make web content and applications accessible to users with disabilities who use assistive technologies (AT).

This topic has come up a few times here on this site but now it has come up again on LinkedIn. Here is what Googlers had to say about it:

John Mueller wrote:

Martin Splitt wrote:

Previously Martin Splitt said, “Why slap aria on something that has a better, semantic alternative… And citing seo myths as a justification… Noooo.”

There is also an Google SEO office hours from the past where John Mueller addressed it:

In short, I wouldn’t use ARIA labels to boost your SEO, it is not for that.

Forum discussion at LinkedIn.

Note: This was pre-written and scheduled to be posted today, I am currently offline for Simchat Torah.