HTTP/3 does not have a direct effect on SEO despite its faster performance, Google states.
Google Browse Advocate John Mueller unmasks a theory that the faster speed of HTTP/3 can straight affect
a site’s SEO. This subject is dealt with during the November 2022 edition of Google’s SEO office-hours Q&A session. Joined by the Google Search Relations group, Muller responds to the following concern:
Could making use of HTTP/3 enhance SEO because it improves efficiency?
HTTP/3 offers efficiency advantages over HTTP/2 and HTTP/3. However, the efficiency gains are unlikely to make a difference concerning SEO.
Mueller On The SEO Effect Of HTTP/3
Mueller begins his response by mentioning Google doesn’t use HTTP/3 as a ranking element or in web crawling:
“Google does not use HTTP/3 as a consider ranking at the minute. As far as I understand, we do not use it in crawling either.”
Google primarily uses HTTP/1 for web crawling. Googlebot supports HTTP/2 however only uses it when there’s a clear benefit over HTTP/1.
Support for HTTP/3 is likely a long method off. Sites that pick to adopt it early won’t see a direct enhancement in search rankings, Mueller describes:
“In terms of efficiency, I suspect the gains users see from utilizing HTTP/3 would not be enough to substantially affect the core web vitals, which are the metrics that we use in the page experience ranking aspect. While making a quicker server is always an excellent idea, I doubt you ‘d see a direct connection with SEO just from utilizing HTTP/3. Similar to how you ‘d be tough pushed to discovering a direct connection to using a faster type of RAM in your servers.”
Mueller offered a similar response when asked about HTTP/3 in December 2021.
Nevertheless, he recommended HTTP/3 might “possibly indirectly” impact core web vitals.
I do not believe we crawl with http/3 but that does not indicate you won’t see positive effects for users (and with that, potentially indirectly core web vitals too).
— John Mueller is mostly not here (@JohnMu) December 6, 2021
Mueller sounds more positive now in stating that there’s no impact.
Hear his response in the video below:
Included Image: SteafPong88/Best SMM Panel