90a.co - robtex.com

90a.co

DNSSEC⚠️ Not signed
A50.16.27.236🇺🇸 Amazon50.16.0.0/16 EC2 IAD prefix
PTRec2-50-16-27-236.compute-1.amazonaws.com
NSns4.csof.net ⭐
A52.20.19.77🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix
PTRec2-52-20-19-77.compute-1.amazonaws.com
NSns1.csof.net
A18.205.186.231🇺🇸 Amazon18.204.0.0/14 EC2 IAD prefix
PTRec2-18-205-186-231.compute-1.amazonaws.com
NSns2.csof.net
A23.21.178.27🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix
PTRec2-23-21-178-27.compute-1.amazonaws.com
NSns3.csof.net
A3.214.185.54🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-214-185-54.compute-1.amazonaws.com
MXmx1.90a.co ⭐
A46.4.12.146🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRstatic.146.12.4.46.clients.your-server.de
MXmx2.90a.co ⭐
A46.4.10.173🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRstatic.173.10.4.46.clients.your-server.de
TXTv=spf1 include:_incspfcheck.mailspike.net ?all
SOAns4.csof.nethostmaster@90a.co serial=1773206181

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=1759588016

Subdomains

mx2.90a.co
mx1.90a.co

Same first word

90a.cc
90a.net
90a.nl
90a.com
90a.co
90a.cn
90a.de

Similar names

a90.pl
a90.org
a09.top
a09.site
0a9.cn
0a9.ru
a90.com
a09.uk
a90.it
09a.de
0a9.com
a09.de
a09.in
a90.us
a90.top
a09.cc
a90.eu
a90.net
a90.nl
a09.nl
09a.com
a09.com
a90.cz
a09.eu
09a.ru
a09.net
a90.de

DNS History

19 records (7 active, 12 former)

2017201820192020202120222023202420252026NSns1.csof.netns2.csof.netns3.csof.netns4.csof.netdns1.registrar-servers.comdns2.registrar-servers.comns1.dan.comns2.dan.comMXmx1.90a.comx2.90a.coeforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.comA50.16.27.236160.153.129.2172a05:d014:9da:8c10:306e:3e07:a16f:a55252.58.78.16
○NSdns1.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2021-07-20 14:59:44
○ 2026-03-11 05:17:56
○NSdns2.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2021-07-20 14:59:44
○ 2026-03-11 05:17:56
●NSns1.csof.net2026-03-07 → 2026-03-11 · 3 obs
○ 2021-07-20 14:59:44
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
○NSns1.dan.com2021-07-20 → 2021-07-20 · 4 obs
○ 2016-12-05 03:17:04
● 2021-07-20 14:59:44
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
●NSns2.csof.net2026-03-07 → 2026-03-11 · 3 obs
○ 2021-07-20 14:59:44
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
○NSns2.dan.com2021-07-20 → 2021-07-20 · 4 obs
○ 2016-12-05 03:17:04
● 2021-07-20 14:59:44
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
●NSns3.csof.net2026-03-07 → 2026-03-11 · 3 obs
○ 2021-07-20 14:59:44
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
●NSns4.csof.net2026-03-07 → 2026-03-11 · 3 obs
○ 2021-07-20 14:59:44
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
○MXeforward1.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
○MXeforward2.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
○MXeforward3.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
○MXeforward4.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
○MXeforward5.registrar-servers.com2016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
●MXmx1.90a.co2026-03-07 → 2026-03-11 · 3 obs
○ 2016-12-05 03:17:04
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
●MXmx2.90a.co2026-03-07 → 2026-03-11 · 3 obs
○ 2016-12-05 03:17:04
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
○A160.153.129.2172016-12-05 → 2016-12-05 · 3 obs
● 2016-12-05 03:17:04
○ 2021-07-20 14:59:44
○ 2026-03-11 05:17:56
○A2a05:d014:9da:8c10:306e:3e07:a16f:a5522021-07-20 → 2021-07-20 · 4 obs
○ 2016-12-05 03:17:04
● 2021-07-20 14:59:44
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56
●A50.16.27.2362026-03-07 → 2026-03-11 · 3 obs
○ 2021-07-20 14:59:44
● 2026-03-07 23:17:26
● 2026-03-11 05:17:56
○A52.58.78.162021-07-20 → 2021-07-20 · 4 obs
○ 2016-12-05 03:17:04
● 2021-07-20 14:59:44
○ 2026-03-07 23:17:26
○ 2026-03-11 05:17:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cob.registrydns.co, d.registrydns.co, a.registrydns.co, c.registrydns.co-
90a.cons1.csof.net, ns2.csof.net, ns3.csof.net, ns4.csof.net-

✅ Authoritative Response

Server: 3.214.185.54

NS records: ns1.csof.net, ns2.csof.net, ns3.csof.net, ns4.csof.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 90a.co (unsigned zone)

⏱️ Timing

Total: 539ms | Queries: -

📄 Records

TypeCountSample Data
A150.16.27.236
NS4ns3.csof.net, ns1.csof.net...
MX2mx1.90a.co (pri: 10), mx2.90a.co (pri: 10)
TXT1v=spf1 include:_incspfcheck.mailspike.ne
SOA1ns4.csof.net hostmaster.90a.co

Analysis

Hierarchy

90a.co is a parent of mx2.90a.co and mx1.90a.co.

IP Addresses

90a.co points to a single IP number: 50.16.27.236.

Other host names, for instance 42fef98fbcd7f7258cba6d3ef48dd9bc.org, x41.abfcmdcn.net, 83z.idiron.com, favorkiss.net and 2f9b74796bdff2f474ffc89acfafda6a.com share IP numbers with 90a.co.

Name Servers

90a.co is delegated to four name servers: ns1.csof.net, ns2.csof.net, ns3.csof.net and ns4.csof.net.

90a.co shares name servers with other domains at least partially, for instance lacofire.net, 1d88554949b98131b1c2c5052449c638.xyz, biecahiiba.com, 6feabecb007ececbffc0c4b11c8528cb.org and workspacin.cloud.

These name servers are commonly used with ns5.csof.net, ns6.csof.net, ns7.csof.net and ns8.csof.net.

Host names with a single IP:

ns1.csof.net points to 18.205.186.231.

ns2.csof.net points to 23.21.178.27.

ns3.csof.net points to 3.214.185.54.

ns4.csof.net points to 52.20.19.77.

Mail Servers

90a.co is handled by two mail servers: mx1.90a.co and mx2.90a.co.

Host names with one IP number:

mx1.90a.co points to: 46.4.12.146.

mx2.90a.co points to: 46.4.10.173.