How many companies use HTTP/3 vs IIS?

2,169,040 companies use HTTP/3 and 82,953 companies use IIS in our database. HTTP/3 is more widely adopted with 26.1x more companies than IIS.

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

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 — 26.1x more than IIS (82,953).

2,169,040 use HTTP/382,953 use IIS

	HTTP/3	IIS
Companies	2,169,040	82,953
Category	Miscellaneous	Web servers

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2,251,993 companies with emails, tech stacks, and contacts

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API access

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

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