How many companies use HTTP/2 vs HTTP/3?

2,530 companies use HTTP/2 and 8,134,199 companies use HTTP/3 in our database. HTTP/3 is more widely adopted with 3215.1x more companies than HTTP/2.

Can I get a list of companies using both HTTP/2 and HTTP/3?

Yes. AgentData tracks companies using both tools. Sign up free to access the full list with emails, tech stacks, and contacts via CSV or API.

HTTP/3 is used by 8,134,199companies — 3215.1x more than HTTP/2 (2,530).

2,530 use HTTP/28,134,199 use HTTP/3

	HTTP/2	HTTP/3
Companies	2,530	8,134,199
Category	Miscellaneous	Miscellaneous

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8,136,729 companies with emails, tech stacks, and contacts

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GET /api/v1/tech?name=http-2

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