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Websites using HTTP/3

920,491 websites detected · Updated Oct 31, 2026

What is HTTP/3?

HTTP/3 is a technology in the Web Servers category. 920,491 websites use HTTP/3, detected by Hunter on Oct 31, 2026.

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The websites using HTTP/3

A sample of the websites Hunter detects HTTP/3 on, ordered by web popularity.

Domain name Industry
1
messenger.com
- 22 email addresses
2
cloudflare.com
Computer and Network Security 421 email addresses
3
cdnjs.com
IT Services and IT Consulting 1 email address
4
adobe.com
Software Development 84,026 email addresses
5
amazon.com
Software Development 364,999 email addresses
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You have 920,491 sites. Now reach the people.

Hunter already holds email addresses at all 50 websites listed above.

  • Anish P. · Head Of Sales Cloudflare

    84%

  • Ryan K. · Co-Founder Cdnjs

    99%

  • John W. · Co-Founder Adobe

    85%

Real people at the websites listed above. Only the part before the @ is hidden here — the company domain is the real one.

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Who uses HTTP/3

Websites running HTTP/3, counted by industry and by country. Only the largest groups are shown.

By industry

Industry Websites
Professional Services 88,461
Technology, Information and Media 66,405
Manufacturing 42,487
Retail 31,140
Consumer Services 29,707
Entertainment Providers 26,662
Hospitals and Health Care 21,600
Accommodation Services 18,778
Education 16,948
Administrative and Support Services 16,138
Financial Services 15,859
Construction 11,389

By country

Country Websites
United States 250,179
United Kingdom 53,286
Canada 32,431
France 21,072
Australia 19,781
Germany 17,340
Netherlands 16,331
India 14,878
Poland 13,383
Brazil 11,899
Spain 10,389
Denmark 8,465

HTTP/3 by country

The countries where we detected enough HTTP/3 websites to rank them.

Hunter detects HTTP/3 on 920,491 websites. The figure comes from Hunter's own crawl of company websites and is rebuilt every night, so it moves as sites adopt and drop the technology.

The table on this page is a sample of the websites running HTTP/3, ordered by web popularity, with the industries they are in and how many email addresses Hunter holds for each. Create a free account to search any of them and see the addresses.

The websites Hunter detects HTTP/3 on most often also run PHP, jQuery and Cloudflare.

HTTP/3 is one of the Web Servers technologies Hunter tracks. Others it detects widely include Nginx, Apache HTTP Server and LiteSpeed.

Yes — that is what Hunter is for. The last column of the table shows how many email addresses Hunter already holds for a website, where it has found any. Sign up to see the addresses themselves, with the name and job title of the person behind each one.
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