duplexnumbers.com
duplexnumbers.com is a live English-language website hosted on Fastly, Inc. (AS54113) in the United States, served by Github.com. cl0q first saw it on 2026-09-15 and last crawled it on 2026-09-15. It resolves to 185.199.108.153 and has mail (MX) records set up.
How the site describes itself:
Duplex Numbers
Duplex numbers: expressions like 5 ± 2 ± 1 read as one number holding several values at once. The notation, what it represents, and a calculator to try it.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-09-15 |
| Last crawled | 2026-09-15 |
| IPv4 | 185.199.108.153 |
| IPv6 | 2606:50c0:8003::153 |
| Network | AS54113 Fastly, Inc. · California |
| Mail (MX) | eforward1.registrar-servers.com,eforward3.registrar-servers.com,eforward2.registrar-servers.com,eforward4.registrar-servers.com,eforward5.registrar-servers.com |
| Language | en |
| Server | GitHub.com |