During the Q&A session of the November edition of Google’s SEO office-hours, Google announced that the faster performance of HTTP/3 does not directly impact a website’s SEO. Google Search Advocate has debunked the enhanced performance theory. Google team explains that HTTP/3 offers better performance than HTTP/2 and HTTP/1. But users would not experience a substantial difference with respect to SEO parameters. They went on to state that Google does not currently consider HTTP/3 as a ranking factor or in web crawling. It implies that the websites which adopt HTTP/3 early would not see enough immediate improvement in search rankings to affect the Core Web Vitals significantly. There could, however, be a potential indirect impact, and Google support for HTTP/3 is still a long way off.
Google Reports That HTTP/3 Does not Currently Affect SEO
November 29, 2022