DNSWHOIS.INFO - ctfd.io
Search for IP or hostnames:
ctfd.io checked at 2025-10-06T06:48:32.208Z 513ms 168/168/168 100% R:14ctfd.io
io
| NS | a0.nic.io | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
rank #2119 in the tld
Up
isfcrhack.ctfd.io |
ncfi.ctfd.io |
reversing.ctfd.io |
challenges.ctfd.io |
www.ctfd.io |
nephack3.ctfd.io |
circlecityconctf.ctfd.io |
slack.ctfd.io |
cloud.ctfd.io |
Starts with same word
Starts similarily
AI analysis
ctfd.io is a parent of isfcrhack.ctfd.io, ncfi.ctfd.io, reversing.ctfd.io, challenges.ctfd.io, www.ctfd.io and a few other host names.
ctfd.io maps to four IP numbers: 2606:4700:3030::ac43:b99f, 2606:4700:3031::6815:134a, 104.21.19.74 and 172.67.185.159.
Other host names such as useit.at, 181k8.com, wein4friends.com, xytexcryobank.com and www.isatice.com share IPs with ctfd.io.
Two name servers terry.ns.cloudflare.com and tia.ns.cloudflare.com handle the delegation for ctfd.io.
ctfd.io shares the same name server setup as other domains, for example amanewyork.org, wulk.in, yoogho.com, opoczno.in.ua and hackerfire.com.
ctfd.io at least partially shares name servers with other domains, for example layston.co.uk, mer365.com, employmentlawservices.com, electronicsinfoline.com and villasun.net.
Host names with six IP numbers:
terry.ns.cloudflare.com points to 2606:4700:58::adf5:3bed, 2803:f800:50::6ca2:c1ed, 2a06:98c1:50::ac40:21ed, 108.162.193.237, 172.64.33.237 and 173.245.59.237.
tia.ns.cloudflare.com points to 2606:4700:50::adf5:3ae5, 2803:f800:50::6ca2:c0e5, 2a06:98c1:50::ac40:20e5, 108.162.192.229, 172.64.32.229 and 173.245.58.229.
ctfd.io is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
ctfd.io shares at least partially some mail servers with other domains, for instance inboundgeo.com, movimientosalud2030.com, sallabim.com, fawzihaimor.com and kat.cafe.
these mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers
Each host name points to two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4023:c06::1b and 142.250.141.27
alt1.aspmx.l.google.com points to 2607:f8b0:4023:100f::1b and 192.178.220.26
alt2.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.27
alt3.aspmx.l.google.com points to 2a00:1450:4010:c0e::1a and 74.125.131.26
alt4.aspmx.l.google.com points to 2404:6800:4003:c06::1b and 142.250.4.26