http3test.com
http3test.com is a live English-language website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-07-03 and last crawled it on 2026-10-16. It resolves to 104.21.26.32. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
HTTP/3 Test | Test If HTTP/3 Is Enabled
Is my site using the latest HTTP/3 protocol? Free tool to check if HTTP/3 is enabled on any URL.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-07-03 |
| Last crawled | 2026-10-16 |
| IPv4 | 104.21.26.32 |
| IPv6 | 2606:4700:3037::ac43:8754 |
| Network | AS13335 Cloudflare, Inc. · United States |
| Language | en |
| Server | cloudflare |