🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cortexrm.com`

DNSSEC	⚠️ Not signed
A	20.80.75.138^{🇺🇸 Microsoft20.64.0.0/10}
NS	`pdns2.ultradns.net` ⭐
		A	2610:a1:1014::1^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns2.ultradns.net`
		A	204.74.109.1^{🇺🇸 MAINT-ID-12008204.74.109.0/24 Neustar}
			PTR	`pdns2.ultradns.net`
NS	`pdns1.ultradns.net`
		A	2001:502:f3ff::1^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns1.ultradns.net`
		A	204.74.108.1^{🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar}
			PTR	`pdns1.ultradns.net`
NS	`pdns3.ultradns.org` ⚠️ Not in parent delegation
		A	2610:a1:1015::1^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns3.ultradns.org`
		A	199.7.68.1^{🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar}
			PTR	`pdns3.ultradns.org`
NS	`pdns4.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::1^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns4.ultradns.org`
		A	199.7.69.1^{🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar}
			PTR	`pdns4.ultradns.org`
NS	`pdns5.ultradns.info` ⚠️ Not in parent delegation
		A	2610:a1:1016::1^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`pdns5.ultradns.info`
		A	204.74.114.1^{🇺🇸 MAINT-ID-12008204.74.114.0/24 Neustar}
			PTR	`pdns5.ultradns.info`
NS	`pdns6.ultradns.co.uk` ⚠️ Not in parent delegation
		A	2610:a1:1017::1^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`pdns6.ultradns.co.uk`
		A	204.74.115.1^{🇺🇸 MAINT-ID-12008204.74.115.0/24 Neustar}
			PTR	`pdns6.ultradns.co.uk`
SOA	`pdns2.ultradns.net`brandon_smith@bradycorp.com 2024-05-29 #5

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1787367879

Same first word

cortexrm.com

Previous names

Next names

DNS History

14 records (7 active, 7 former)

○NSns1.dnsconfigure.com2015-05-12 → 2016-03-28 · 4 obs

● 2015-05-12 00:08:10
● 2016-03-28 15:50:22
○ 2016-09-08 09:58:30
○ 2026-08-22 03:10:56

○NSns1.systemdns.com2016-09-08 → 2017-06-22 · 5 obs

○ 2016-03-28 15:50:22
● 2016-09-08 09:58:30
● 2017-06-22 04:57:46
○ 2026-08-21 23:16:52
○ 2026-08-22 03:10:56

○NSns2.dnsconfigure.com2015-05-12 → 2016-03-28 · 4 obs

● 2015-05-12 00:08:10
● 2016-03-28 15:50:22
○ 2016-09-08 09:58:30
○ 2026-08-22 03:10:56

○NSns2.systemdns.com2016-09-08 → 2017-06-22 · 5 obs

○ 2016-03-28 15:50:22
● 2016-09-08 09:58:30
● 2017-06-22 04:57:46
○ 2026-08-21 23:16:52
○ 2026-08-22 03:10:56

○NSns3.systemdns.com2016-09-08 → 2017-06-22 · 5 obs

○ 2016-03-28 15:50:22
● 2016-09-08 09:58:30
● 2017-06-22 04:57:46
○ 2026-08-21 23:16:52
○ 2026-08-22 03:10:56

●NSpdns1.ultradns.net2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●NSpdns2.ultradns.net2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●NSpdns3.ultradns.org2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●NSpdns4.ultradns.org2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●NSpdns5.ultradns.info2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●NSpdns6.ultradns.co.uk2026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

●A20.80.75.1382026-08-21 → 2026-08-22 · 3 obs

○ 2017-06-22 04:57:46
● 2026-08-21 23:16:52
● 2026-08-22 03:10:56

○A204.246.134.1402015-10-20 → 2017-06-22 · 5 obs

○ 2015-05-12 00:08:10
● 2015-10-20 19:20:08
● 2017-06-22 04:57:46
○ 2026-08-21 23:16:52
○ 2026-08-22 03:10:56

○A209.90.107.1392015-05-12 → 2015-05-12 · 3 obs

● 2015-05-12 00:08:10
○ 2015-10-20 19:20:08
○ 2026-08-22 03:10:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...	-
cortexrm.com	pdns1.ultradns.net, pdns2.ultradns.net	-

✅ Authoritative Response

Server:204.74.108.1

NS records: pdns1.ultradns.net, pdns2.ultradns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortexrm.com (unsigned zone)

⏱️ Timing

Total: 456ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`20.80.75.138`
NS	6	`pdns1.ultradns.net, pdns2.ultradns.net...`
SOA	1	`pdns2.ultradns.net brandon_smith.bradyco`

Analysis

IP Addresses

cortexrm.com resolves to just one IP address, 20.80.75.138.

Two other host names, along with bradysouthafrica.com, pdcsolution.com and seetton.co.uk, also share IP numbers with cortexrm.com.

Name Servers

cortexrm.com is delegated to 6 name servers: pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net and 3 other.

cortexrm.com has at least partial name server overlap with other domains, such as universalmeetingsandevents.com, thermofisherscientific.biz, goodreads.us and two others.

pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk — plus 7 other name servers — are commonly paired with these name servers.

Host names that have two IP addresses:

pdns5.ultradns.info points to 204.74.114.1 and 2610:a1:1016::1.

pdns1.ultradns.net points to 204.74.108.1 and 2001:502:f3ff::1.

pdns2.ultradns.net points to 204.74.109.1 and 2610:a1:1014::1.

pdns3.ultradns.org points to 199.7.68.1 and 2610:a1:1015::1.

pdns4.ultradns.org points to 199.7.69.1 and 2001:502:4612::1.

pdns6.ultradns.co.uk points to 204.74.115.1 and 2610:a1:1017::1.