How many companies use HTTP/3 vs sIFR?

2,169,040 companies use HTTP/3 and 192 companies use sIFR in our database. HTTP/3 is more widely adopted with 11297.1x more companies than sIFR.

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

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 2,169,040companies — 11297.1x more than sIFR (192).

2,169,040 use HTTP/3192 use sIFR

	HTTP/3	sIFR
Companies	2,169,040	192
Category	Miscellaneous	Font scripts

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2,169,232 companies with emails, tech stacks, and contacts

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GET /api/v1/tech?name=http-3

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