DNSWHOIS.INFO - codeforces.org
Search for IP or hostnames:
codeforces.org checked at 2025-10-07T15:56:39.828Z 631ms 105/105/105 100% R:7codeforces.org
| NS | fred.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b71 🇺🇸 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c171 🇨🇷 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2171 🇺🇸 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 108.162.193.113🇺🇸 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 172.64.33.113🇺🇸 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 173.245.59.113🇺🇸 Cloudflare | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| NS | jean.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a79 🇺🇸 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c079 🇨🇷 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2079 🇺🇸 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 108.162.192.121🇺🇸 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 172.64.32.121🇺🇸 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 173.245.58.121🇺🇸 Cloudflare | ||||||
| PTR | jean.ns.cloudflare.com | ||||||
| A | 2606:4700:3031::ac43:83be 🇺🇸 Cloudflare | ||||||
| A | 2606:4700:3035::6815:afc 🇺🇸 Cloudflare | ||||||
| A | 104.21.10.252 Cloudflare | ||||||
| A | 172.67.131.190🇺🇸 Cloudflare | ||||||
org
| NS | a0.org.afilias-nst.info | ||||||
| NS | a2.org.afilias-nst.info | ||||||
| NS | c0.org.afilias-nst.info | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | d0.org.afilias-nst.org | ||||||
Starts with same word
Starts similarily
AI analysis
codeforces.org points to four IP numbers: 2606:4700:3031::ac43:83be, 2606:4700:3035::6815:afc, 104.21.10.252 and 172.67.131.190.
Other host names, for instance gunzone.com, thelistservearchive.com, sexprostitute.org, webxt.ru and www.flexibleimages.club share IP numbers with codeforces.org.
codeforces.org's delegation is to two name servers fred.ns.cloudflare.com and jean.ns.cloudflare.com.
codeforces.org shares the same name server configuration as other domains, such as veganutmaningen.se, crashtm.org, garzedin.com.br, jd-multimedia.fr and eukast.com.
codeforces.org at least partially shares its name servers with other domains, for instance ec6.pl, gettelugu.com, rodbertus.com, argonauthotel.com and onbrowser.eu.
These name servers are often used together with the name servers zelda.ns.cloudflare.com.
Host names with six IP numbers:
fred.ns.cloudflare.com points to: 2606:4700:58::adf5:3b71, 2803:f800:50::6ca2:c171, 2a06:98c1:50::ac40:2171, 108.162.193.113, 172.64.33.113 and 173.245.59.113.
jean.ns.cloudflare.com points to: 2606:4700:50::adf5:3a79, 2803:f800:50::6ca2:c079, 2a06:98c1:50::ac40:2079, 108.162.192.121, 172.64.32.121 and 173.245.58.121.