Google’s John Mueller said on the last Google office hours that using HTTP/3 for your server will likely not have any impact on your SEO or rankings in Google Search.

He said it also would not likely lead to much or any gains in terms of your core web vitals scores.

John said “Google doesn’t use HTTP/3 as a factor in ranking at the moment,” and reconfirmed Google still does not use HTTP/3 for crawling.

John said this at the 6 minute mark in this video:

Here is the transcript:

Forum discussion at Twitter.