null.co - robtex.com

null.co

DNSSEC⚠️ Not signed
NSns1.digitalocean.com
A2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
A172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
NSns2.digitalocean.com
A2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
A172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
NSns3.digitalocean.com
A2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
A172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
MXmail.protonmail.ch
A176.119.200.128🇨🇭 Proton176.119.200.0/24
PTRmail.protonmail.ch
A185.70.42.128🇨🇭 Proton185.70.42.0/24
PTRmail.protonmail.ch
A185.205.70.128🇫🇷 Proton185.205.70.0/24
PTRmail.protonmail.ch
MXmailsec.protonmail.ch(20)
A176.119.200.129🇨🇭 Proton176.119.200.0/24
PTRmailsec.protonmail.ch
A185.70.42.129🇨🇭 Proton185.70.42.0/24
PTRmailsec.protonmail.ch
A185.205.70.129🇫🇷 Proton185.205.70.0/24
PTRmailsec.protonmail.ch
TXTv=spf1 include:_spf.protonmail.ch mx ~all
TXTprotonmail-verification=3424a3cff7035956f4f3525570b291557d25ffef
SOAns1.digitalocean.comhostmaster@null.co serial=0

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759704725

Same first word

Similar names

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSns1.digitalocean.comns2.digitalocean.comns3.digitalocean.combuy.internettraffic.comns69.domaincontrol.comns70.domaincontrol.comsell.internettraffic.comMXmail.protonmail.chmailsec.protonmail.chmailstore1.secureserver.netsmtp.secureserver.netA188.121.46.12850.63.202.869.172.201.208
NSbuy.internettraffic.com2015-05-20 → 2016-04-12 · 6 obs
● 2015-05-20 01:22:32
○ 2015-09-24 06:58:38
● 2015-12-27 10:28:50
● 2016-04-12 08:53:54
○ 2016-10-18 15:22:16
○ 2026-07-13 17:17:06
NSns1.digitalocean.com2020-01-27 → 2026-07-13 · 3 obs
○ 2016-12-18 08:17:10
● 2020-01-27 23:22:12
● 2026-07-13 17:17:06
NSns2.digitalocean.com2020-01-27 → 2026-07-13 · 3 obs
○ 2016-12-18 08:17:10
● 2020-01-27 23:22:12
● 2026-07-13 17:17:06
NSns3.digitalocean.com2020-01-27 → 2026-07-13 · 3 obs
○ 2016-12-18 08:17:10
● 2020-01-27 23:22:12
● 2026-07-13 17:17:06
NSns69.domaincontrol.com2015-09-24 → 2016-12-18 · 8 obs
○ 2015-05-20 01:22:32
● 2015-09-24 06:58:38
○ 2015-12-27 10:28:50
○ 2016-04-12 08:53:54
● 2016-10-18 15:22:16
● 2016-12-18 08:17:10
○ 2020-01-27 23:22:12
○ 2026-07-13 17:17:06
NSns70.domaincontrol.com2015-09-24 → 2016-12-18 · 8 obs
○ 2015-05-20 01:22:32
● 2015-09-24 06:58:38
○ 2015-12-27 10:28:50
○ 2016-04-12 08:53:54
● 2016-10-18 15:22:16
● 2016-12-18 08:17:10
○ 2020-01-27 23:22:12
○ 2026-07-13 17:17:06
NSsell.internettraffic.com2015-05-20 → 2016-04-12 · 6 obs
● 2015-05-20 01:22:32
○ 2015-09-24 06:58:38
● 2015-12-27 10:28:50
● 2016-04-12 08:53:54
○ 2016-10-18 15:22:16
○ 2026-07-13 17:17:06
MXmail.protonmail.ch2021-06-09 → 2026-07-13 · 14 obs
○ 2020-01-27 23:22:12
● 2021-06-09 00:10:52
● 2026-06-07 04:43:16
○ 2026-06-07 05:37:08
● 2026-06-07 06:21:46
● 2026-06-10 00:01:52
○ 2026-06-10 01:19:28
● 2026-06-10 01:57:14
● 2026-06-12 23:35:40
○ 2026-06-13 00:29:50
● 2026-06-13 01:21:28
○ 2026-06-26 15:23:14
● 2026-06-26 18:18:50
● 2026-07-13 17:17:06
MXmailsec.protonmail.ch2021-06-09 → 2026-07-13 · 14 obs
○ 2020-01-27 23:22:12
● 2021-06-09 00:10:52
● 2026-06-07 04:43:16
○ 2026-06-07 05:37:08
● 2026-06-07 06:21:46
● 2026-06-10 00:01:52
○ 2026-06-10 01:19:28
● 2026-06-10 01:57:14
● 2026-06-12 23:35:40
○ 2026-06-13 00:29:50
● 2026-06-13 01:21:28
○ 2026-06-26 15:23:14
● 2026-06-26 18:18:50
● 2026-07-13 17:17:06
MXmailstore1.secureserver.net2015-09-24 → 2016-12-18 · 7 obs
● 2015-09-24 06:58:38
○ 2015-12-27 10:28:50
○ 2016-04-12 08:53:54
● 2016-10-18 15:22:16
● 2016-12-18 08:17:10
○ 2020-01-27 23:22:12
○ 2026-07-13 17:17:06
MXsmtp.secureserver.net2015-09-24 → 2016-12-18 · 7 obs
● 2015-09-24 06:58:38
○ 2015-12-27 10:28:50
○ 2016-04-12 08:53:54
● 2016-10-18 15:22:16
● 2016-12-18 08:17:10
○ 2020-01-27 23:22:12
○ 2026-07-13 17:17:06
A188.121.46.1282015-09-24 → 2015-09-24 · 4 obs
○ 2015-05-20 01:22:32
● 2015-09-24 06:58:38
○ 2015-12-27 10:28:50
○ 2026-07-13 17:17:06
A50.63.202.82016-10-18 → 2016-12-18 · 5 obs
○ 2016-04-12 08:53:54
● 2016-10-18 15:22:16
● 2016-12-18 08:17:10
○ 2020-01-27 23:22:12
○ 2026-07-13 17:17:06
A69.172.201.2082015-05-20 → 2016-04-12 · 6 obs
● 2015-05-20 01:22:32
○ 2015-09-24 06:58:38
● 2015-12-27 10:28:50
● 2016-04-12 08:53:54
○ 2016-10-18 15:22:16
○ 2026-07-13 17:17:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cob.registrydns.co, a.registrydns.co, d.registrydns.co, c.registrydns.co-
null.cons3.digitalocean.com, ns2.digitalocean.com, ns1.digitalocean.com-

✅ Authoritative Response

Server:172.64.52.210

NS records: ns3.digitalocean.com, ns2.digitalocean.com, ns1.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for null.co (unsigned zone)

⏱️ Timing

Total: 2024ms | Queries: -

📄 Records

TypeCountSample Data
NS3ns2.digitalocean.com, ns3.digitalocean.com...
MX2mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)
TXT2protonmail-verification=3424a3cff7035956, v=spf1 include:_spf.protonmail.ch mx ~al
SOA1ns1.digitalocean.com hostmaster.null.co

Analysis

Name Servers

The authoritative name servers for null.co are ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com — three in total.

The name servers of null.co overlap at least partially with those of other domains — among them brainfuc.kr, blessedsteps.org, 1.0.0.f.f.4.c.3.1.0.0.0.0.0.0.0.1.d.0.0.0.0.4.0.0.8.8.a.4.0.6.2.ip6.arpa and two more.

ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com all resolve to exactly two IP numbers apiece: ns1.digitalocean.com172.64.52.210 and 2606:4700:52::ac40:34d2; ns2.digitalocean.com172.64.53.21 and 2606:4700:5a::ac40:3515; ns3.digitalocean.com172.64.49.209 and 2606:4700:52::ac40:31d1.

Mail Servers

null.co is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

Among the domains sharing a mail server setup with null.co are campaign-ninjas.com, rothschild.li, dptr.io and two others.

There is at least a partial MX overlap between null.co and other domains, including dragonmage.net, poledra.eu, tmhiggins.com and two others.

Both mail.protonmail.ch and mailsec.protonmail.ch point to three IP numbers: mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128, while mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.