ctf.nullcon.net - robtex.com

ctf.nullcon.net

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:1d7f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9503🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.29.127Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.149.3🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
MXmxa.mailgun.org ⭐
A34.160.157.95🇺🇸 Google34.160.0.0/16
PTR95.157.160.34.bc.googleusercontent.com
MXmxb.mailgun.org ⭐
A34.160.157.95🇺🇸 Google34.160.0.0/16
PTR95.157.160.34.bc.googleusercontent.com
TXTv=spf1 include:mailgun.org ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.29.127, 172.67.149.3
IPv62606:4700:3037::6815:1d7f, 2606:4700:3037::ac43:9503

nullcon.net

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:1d7f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9503🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.29.127Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.149.3🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSclay.ns.cloudflare.com ⭐
NShazel.ns.cloudflare.com
MXnullcon-net.mail.protection.outlook.com ⭐
TXTMS=ms90065563
TXTgoogle-site-verification=iU_MPU5a_MMJFGcAsi4De_zyZ1nEhHF3d9o-J2xc0rA
TXTgoogle-site-verification=sH92Ag_F-oyjTCywCiA3gHFzXkYjnkW5bEI1LQPrFmU
TXTv=spf1 include:spf.protection.outlook.com include:_spf.google.com include:732...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.29.127, 172.67.149.3
IPv62606:4700:3037::6815:1d7f, 2606:4700:3037::ac43:9503
SOAclay.ns.cloudflare.comdns@cloudflare.com serial=2398646259
WOT: SAFE (61/100)
rank #463562 globally
rank #13518 in the tld
🔒 HSTS Preload (+subdomains)
WOT: SAFE (65/100)

Same first word

ctf.com.tr
ctf.us
ctf.ru
ctf.fail
ctf.moscow
ctf.at
ctf.si
ctf.com.tw
ctf.bz
ctf.nu
ctf.com
ctf.solutions
ctf.info
ctf.ac.cn
ctf.institute
ctf.ch
ctf.vegas
ctf.co.nz
ctf.org.au
ctf.ee
ctf.cl
ctf.cc
ctf.eu
ctf.qa
ctf.net
ctf.site
ctf.horse
ctf.show
ctf.com.br
ctf.nl
ctf.co.in
ctf.zone
ctf.fi
ctf.pt
ctf.su
ctf.it
ctf.tv
ctf.or.kr
ctf.expert
ctf.life
ctf.ir
ctf.de
ctf.company
ctf.pl
ctf.co
ctf.uk.com
ctf.ma
ctf.fyi
ctf.pp.ua
ctf.org
ctf.watch
ctf.events
ctf.edu.tr
ctf.fr
ctf.ae
ctf.wa.gov.au
ctf.com.pt
ctf.biz
ctf.org.in
ctf.lu
ctf.be
ctf.no
ctf.land
ctf.cn
ctf.cz
ctf.com.cn
ctf.is
ctf.link
ctf.academy
ctf.center
ctf.hk
ctf.capital
ctf.co.jp
ctf.co.il
ctf.space
ctf.in
ctf.com.au
ctf.today
ctf.rocks
ctf.ca
ctf.es
ctf.com.ua
ctf.uz
ctf.school
ctf.me
ctf.wtf
ctf.network

Similar names

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
ftc.kz
tcf.co.in
tfc.co
ftc.es
fct.i234.me
tfc.ie
ftc.uz
fct.com.cn
tcf.com.tw
cft.cw
tfc.agency
ftc.biz
cft.info
tcf.us
cft.re
ftc.cc
cft.ie
cft.de
fct.eu
cft.cz
tfc.es
tfc.net
ftc.ag
ftc.co.jp
fct.org.cn
tcf.org.hk
tcf.ca
tfc.ch
fct.ne.jp
ftc.be
cft.org.za
tcf.net.br
ftc.community
fct.sk
tfc.info
cft.me
fct.co
tfc.gr

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026MXmxa.mailgun.orgmxb.mailgun.orgA104.21.29.127172.67.149.32606:4700:3037::6815:1d7f2606:4700:3037::ac43:9503104.27.170.55104.27.171.55173.236.180.79188.114.96.0188.114.97.0208.113.219.112400:cb00:2048:1::681b:aa372400:cb00:2048:1::681b:ab372a06:98c1:3120::2a06:98c1:3121::
●MXmxa.mailgun.org2026-02-16 → 2026-03-26 · 2 obs
● 2026-02-16 02:09:56
● 2026-03-26 09:41:14
●MXmxb.mailgun.org2026-02-16 → 2026-03-26 · 2 obs
● 2026-02-16 02:09:56
● 2026-03-26 09:41:14
●A104.21.29.1272026-02-16 → 2026-03-26 · 10 obs
○ 2018-02-12 11:11:30
● 2026-02-16 02:09:56
● 2026-03-04 19:23:00
○ 2026-03-05 11:49:54
● 2026-03-05 13:21:14
● 2026-03-05 19:50:22
○ 2026-03-05 22:45:26
○ 2026-03-23 03:12:00
● 2026-03-25 16:45:44
● 2026-03-26 09:41:14
○A104.27.170.552018-02-12 → 2018-02-12 · 4 obs
○ 2016-04-16 01:39:08
● 2018-02-12 11:11:30
○ 2026-02-16 02:09:56
○ 2026-03-26 09:41:14
○A104.27.171.552018-02-12 → 2018-02-12 · 4 obs
○ 2016-04-16 01:39:08
● 2018-02-12 11:11:30
○ 2026-02-16 02:09:56
○ 2026-03-26 09:41:14
●A172.67.149.32026-02-16 → 2026-03-26 · 10 obs
○ 2018-02-12 11:11:30
● 2026-02-16 02:09:56
● 2026-03-04 19:23:00
○ 2026-03-05 11:49:54
● 2026-03-05 13:21:14
● 2026-03-05 19:50:22
○ 2026-03-05 22:45:26
○ 2026-03-23 03:12:00
● 2026-03-25 16:45:44
● 2026-03-26 09:41:14
○A173.236.180.792015-06-16 → 2015-06-16 · 3 obs
● 2015-06-16 16:20:44
○ 2015-10-31 15:46:52
○ 2026-03-26 09:41:14
○A188.114.96.02026-03-05 → 2026-03-23 · 8 obs
○ 2026-03-04 19:23:00
● 2026-03-05 11:49:54
○ 2026-03-05 13:21:14
○ 2026-03-05 19:50:22
● 2026-03-05 22:45:26
● 2026-03-23 03:12:00
○ 2026-03-25 16:45:44
○ 2026-03-26 09:41:14
○A188.114.97.02026-03-05 → 2026-03-23 · 8 obs
○ 2026-03-04 19:23:00
● 2026-03-05 11:49:54
○ 2026-03-05 13:21:14
○ 2026-03-05 19:50:22
● 2026-03-05 22:45:26
● 2026-03-23 03:12:00
○ 2026-03-25 16:45:44
○ 2026-03-26 09:41:14
○A208.113.219.112015-10-31 → 2016-04-16 · 5 obs
○ 2015-06-16 16:20:44
● 2015-10-31 15:46:52
● 2016-04-16 01:39:08
○ 2018-02-12 11:11:30
○ 2026-03-26 09:41:14
○A2400:cb00:2048:1::681b:aa372018-02-12 → 2018-02-12 · 4 obs
○ 2016-04-16 01:39:08
● 2018-02-12 11:11:30
○ 2026-02-16 02:09:56
○ 2026-03-26 09:41:14
○A2400:cb00:2048:1::681b:ab372018-02-12 → 2018-02-12 · 4 obs
○ 2016-04-16 01:39:08
● 2018-02-12 11:11:30
○ 2026-02-16 02:09:56
○ 2026-03-26 09:41:14
●A2606:4700:3037::6815:1d7f2026-02-16 → 2026-03-26 · 9 obs
○ 2018-02-12 11:11:30
● 2026-02-16 02:09:56
● 2026-03-04 19:23:00
○ 2026-03-05 11:49:54
● 2026-03-05 13:21:14
○ 2026-03-05 19:50:22
○ 2026-03-23 03:12:00
● 2026-03-25 16:45:44
● 2026-03-26 09:41:14
●A2606:4700:3037::ac43:95032026-02-16 → 2026-03-26 · 9 obs
○ 2018-02-12 11:11:30
● 2026-02-16 02:09:56
● 2026-03-04 19:23:00
○ 2026-03-05 11:49:54
● 2026-03-05 13:21:14
○ 2026-03-05 19:50:22
○ 2026-03-23 03:12:00
● 2026-03-25 16:45:44
● 2026-03-26 09:41:14
○A2a06:98c1:3120::2026-03-05 → 2026-03-23 · 7 obs
○ 2026-03-04 19:23:00
● 2026-03-05 11:49:54
○ 2026-03-05 13:21:14
● 2026-03-05 19:50:22
● 2026-03-23 03:12:00
○ 2026-03-25 16:45:44
○ 2026-03-26 09:41:14
○A2a06:98c1:3121::2026-03-05 → 2026-03-23 · 7 obs
○ 2026-03-04 19:23:00
● 2026-03-05 11:49:54
○ 2026-03-05 13:21:14
● 2026-03-05 19:50:22
● 2026-03-23 03:12:00
○ 2026-03-25 16:45:44
○ 2026-03-26 09:41:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netl.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...-
nullcon.netclay.ns.cloudflare.com, hazel.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.88

NS records: clay.ns.cloudflare.com, hazel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nullcon.net (unsigned zone)

⏱️ Timing

Total: 334ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.149.3, 104.21.29.127
AAAA22606:4700:3037::6815:1d7f, 2606:4700:3037::ac43:9503
MX2mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)
TXT1v=spf1 include:mailgun.org ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

ctf.nullcon.net resolves to four IP numbers: 2606:4700:3037::6815:1d7f, 2606:4700:3037::ac43:9503, 104.21.29.127 and 172.67.149.3.

other host names for instance wizard.design, summitindustries.net, mail.idavox.com, angkanet6.com and anikkr.com share IP numbers with ctf.nullcon.net.

Mail Servers

ctf.nullcon.net is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.

ctf.nullcon.net shares the same mail server setup as other domains, for instance brandonpalmen.com, ioal.org, bmwminipartsdepot.com, cvselfstorage.com and detourbus.com.

ctf.nullcon.net shares mail servers with other domains at least partially, including beautythroughscience.com, privetdrive.net, reachwebcast.com, foogal.com and drdemartini.com.

Host names with a single IP number:

mxa.mailgun.org points to 34.160.157.95 and mxb.mailgun.org points to 34.160.157.95.

Host names that point to 34.160.157.95: mxa.mailgun.org and mxb.mailgun.org.