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Websites using HTTP/3 in the United States

Hunter detected HTTP/3 on 252,167 websites whose company address is in the United States. The count is rebuilt daily from Hunter's index.

United States websites running HTTP/3

Hunter's highest-ranked United States sites running HTTP/3. Sites we hold no publishable contact data for are left out.

  1. 1 messenger.com — 22 email addresses
  2. 2 cloudflare.com Computer and Network Security 436 email addresses
  3. 3 adobe.com Software Development 86,082 email addresses
  4. 4 amazon.com Software Development 362,311 email addresses
  5. 5 w3.org Non-profit Organizations 4,449 email addresses
  6. 6 medium.com Internet Publishing 130 email addresses
  7. 7 cpanel.net Software Development 184 email addresses
  8. 8 yelp.com Software Development 2,126 email addresses
  9. 9 amazon.de Software Development 376 email addresses
  10. 10 amazon.co.jp Software Development 670 email addresses
  11. 11 dropbox.com Software Development 495 email addresses
  12. 12 whatsapp.com Software Development 151 email addresses
  13. 13 forbes.com Book and Periodical Publishing 937 email addresses
  14. 14 bbb.org Technology, Information and Media 11 email addresses
  15. 15 icann.org Technology, Information and Internet 2,106 email addresses
  16. 16 bing.com — 475 email addresses
  17. 17 amazon.co.uk Software Development 319 email addresses
  18. 18 slideshare.net Technology, Information and Internet 7 email addresses
  19. 19 imdb.com Entertainment Providers 1,709 email addresses
  20. 20 dreamhost.com Internet Publishing 222 email addresses
  21. 21 tinyurl.com Information Technology and Services 5 email addresses
  22. 22 sourceforge.net Information Services 279 email addresses
  23. 23 myspace.com Technology, Information and Internet 1,139 email addresses
  24. 24 slack.com Technology, Information and Internet 79 email addresses
  25. 25 wired.com Technology, Information and Internet 527 email addresses
  26. 26 surveymonkey.com Software Development 148 email addresses
  27. 27 giphy.com Technology, Information and Internet 60 email addresses
  28. 28 bitly.com Software Development 71 email addresses
  29. 29 iana.org — 84 email addresses
  30. 30 acm.org Non-profit Organizations 5,772 email addresses
  31. 31 cnn.com Broadcast Media Production and Distribution 2,410 email addresses
  32. 32 clickfunnels.com Software Development 64 email addresses
  33. 33 amazon.fr Software Development 146 email addresses
  34. 34 tirerack.com Motor Vehicle Manufacturing 275 email addresses
  35. 35 stopdesign.com — 2 email addresses
  36. 36 feedster.com Online Media 1 email address
  37. 37 www2005.org — 19 email addresses
  38. 38 latimes.com Newspaper Publishing 1,639 email addresses
  39. 39 colorlib.com IT Services and IT Consulting 7 email addresses
  40. 40 maxmind.com Technology, Information and Internet 66 email addresses
  41. 41 newsweek.com Online Audio and Video Media 646 email addresses
  42. 42 businesswire.com Public Relations and Communications Services 258 email addresses
  43. 43 entrepreneur.com Software Development 125 email addresses
  44. 44 fda.gov Government Administration 10,120 email addresses
  45. 45 feedly.com Computer and Network Security 64 email addresses
  46. 46 theverge.com Book and Periodical Publishing 122 email addresses
  47. 47 plesk.com Software Development 74 email addresses
  48. 48 snapchat.com Software Development 92 email addresses
  49. 49 vox.com Internet Publishing 111 email addresses
  50. 50 barnesandnoble.com Retail 173 email addresses

What those companies do

The largest industries across all 252,167 websites, not only the ones listed above. Sites with no industry recorded are in none of them.

  1. Professional Services 27,983 websites
  2. Technology, Information and Media 21,650 websites
  3. Manufacturing 15,574 websites
  4. Consumer Services 13,983 websites
  5. Entertainment Providers 10,873 websites
  6. Hospitals and Health Care 10,773 websites

A list of United States domains is not a list of people.

Hunter turns each of those domains into named contacts with email addresses, and Discover takes the same two filters — HTTP/3, United States — and adds company size and industry on top.

Sign up to reveal the companies

HTTP/3 in other countries

The other countries where Hunter detected enough HTTP/3 sites to rank them.

Reading the United States number

252,167 is the number of ranked websites in Hunter's index that were detected running HTTP/3 and carry a United States company address. It is a floor, not a vendor's customer list, and the address is where the business is registered rather than where the site is served from.

A detection describes what a site runs today, and a tag left in place after a team stopped paying still counts — so treat one detection as a lead to check rather than as a confirmed contract.

See HTTP/3 worldwide for the full count, the technologies it turns up alongside, and every country Hunter ranks it in.

HTTP/3 in the United States FAQs

Hunter keeps an index of websites, records the technologies detected on each one and the company address it holds for it. 252,167 of the sites running HTTP/3 carry a United States address. The number is rebuilt daily.

No. The table lists the highest-ranked of them, and it leaves out any site Hunter holds no publishable contact data for. Discover searches the whole set.

No. It is the address Hunter holds for the company behind the site, so it is where the business is registered rather than where the site is served from.

Yes. Open a domain to see the email addresses Hunter holds for it, or take the same two filters into Discover and add company size and industry before you export.
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