ctf.io - robtex.com

ctf.io

DNSSEC⚠️ Not signed
A13.248.169.48🇺🇸 Amazon13.248.160.0/20
PTRa904c694c05102f30.awsglobalaccelerator.com
A76.223.54.146🇺🇸 Amazon76.223.48.0/20
NSns3.afternic.com ⭐
A97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23
PTRns3.afternic.com
NSns4.afternic.com
A173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23
PTRns4.namefind.com
TXTv=spf1 -all
SOAns3.afternic.comdns@jomax.net 2025-10-01 #0

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1775988553

Same first word

ctf.no
ctf.land
ctf.cn
ctf.cz
ctf.com.cn
ctf.is
ctf.link
ctf.academy
ctf.center
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ctf.fail
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ctf.at
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ctf.bz
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ctf.edu.tr
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ctf.com.pt
ctf.biz
ctf.org.in
ctf.lu
ctf.be

Similar names

tcf.de
tcf.tw
tfc.co.in
ftc.edu
fct.com.ua
tcf.org.pk
tcf.es
ftc.org
fct.com.sg
ftc.br
ftc.group
ftc.gov.tw
tfc.ac.th
tfc.dk
ftc.kg
tcf.or.kr
cft.dev
fct.in
tcf.cc
tfc.net.pl
ftc.no
fct.at
tfc.pl
tfc.co.id
tfc.com.ua
fct.hk
cft.fr
fct.ch
fct.edu.mo
ftc.cash
ftc.ro
fct.pt
ftc.dk
tcf.gov.tr
ftc.pf
cft.farm
tfc.us
cft.co
fct.sg
ftc.at
ftc.agency
tcf.co
cft.it
ftc.tokyo
tfc.de
tfc.me
ftc.com.au
tcf.eu
cft.gs
cft.lv
tfc.com.ng
fct.nu
fct.swiss
tfc.bike
cft.cc
fct.vn
tcf.com.sg
cft.dk
tcf.church
ftc.in
tfc.eu.com
ftc.com.br
tfc.com.pk
tcf.ch
tfc.zp.ua
fct.com
ftc.cat
tfc.it
ftc.co.at
tfc.ac.nz
tcf.ru
fct.church
ftc.de
ftc.claims
cft.pl
tfc.mx
ftc.website
tfc.tv

DNS History

4 records (4 active, 0 former)

NSns3.afternic.comns4.afternic.comA13.248.169.4876.223.54.146
●NSns3.afternic.com2026-03-28 → 2026-04-12 · 2 obs
● 2026-03-28 08:32:22
● 2026-04-12 10:20:52
●NSns4.afternic.com2026-03-28 → 2026-04-12 · 2 obs
● 2026-03-28 08:32:22
● 2026-04-12 10:20:52
●A13.248.169.482026-03-28 → 2026-04-12 · 2 obs
● 2026-03-28 08:32:22
● 2026-04-12 10:20:52
●A76.223.54.1462026-03-28 → 2026-04-12 · 2 obs
● 2026-03-28 08:32:22
● 2026-04-12 10:20:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
iob0.nic.io, c0.nic.io, a0.nic.io, a2.nic.io-
ctf.ions3.afternic.com, ns4.afternic.com-

✅ Authoritative Response

Server:173.201.66.65

NS records: ns3.afternic.com, ns4.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctf.io (unsigned zone)

⏱️ Timing

Total: 399ms | Queries: -

📄 Records

TypeCountSample Data
A213.248.169.48, 76.223.54.146
NS2ns3.afternic.com, ns4.afternic.com
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns3.afternic.com dns.jomax.net

Analysis

IP Addresses

ctf.io resolves to two IP numbers: 13.248.169.48 and 76.223.54.146.

Other host names, for instance environmentiq.com, 234.128.94.81.runext.com, smtp-11-67.1rdv.com, ns.bartnet.com and host-219-69-64-6.static.kbtelecom.net share IP numbers with ctf.io.

Name Servers

Two name servers ns3.afternic.com and ns4.afternic.com handle delegation for ctf.io.

ctf.io uses the same name server setup as other domains, for example mail.theneedforseed.com, goldarea.com, 365ho.com, licensingblueprint.com and www.fourstarinc.com.

ctf.io partially shares name servers with other domains; examples include kllj.com, gamespread.com, monerox.com, 4496.com and basicsfree.com.

These name servers are commonly used with verification-frsgyqgb387khmr9jzuunx.ns101.verify.hn, ns1.xuejin.com and ns2.xuejin.com.

Host names with one IP number: The host name ns3.afternic.com points to 97.74.98.65 and the host name ns4.afternic.com points to 173.201.66.65.