`cortional.org`

DNSSEC	⚠️ Not signed
A	81.7.18.15^{🇩🇪 ISPPRO-AS81.7.0.0/19}
		PTR	`52b693bf-07a1-43c4-b918-8ab1778a3a1a.huax.com`
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`mail.cortional.org` ⭐
		A	81.7.18.15^{🇩🇪 ISPPRO-AS81.7.0.0/19}
			PTR	`52b693bf-07a1-43c4-b918-8ab1778a3a1a.huax.com`
TXT	`v=spf1 a mx ip4:81.7.18.15 ip4:81.7.18.16 ip4:81.7.18.22 -all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1782483332

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785726578

PTR for

15.18.7.81.in-addr.arpa

Previously MX for

cortional.org

Subdomains

mail.cortional.org

Same first word

cortional.org

Similar names

DNS History

6 records (4 active, 2 former)

●NSdns1.registrar-servers.com2026-05-24 → 2026-08-03 · 2 obs

● 2026-05-24 07:51:42
● 2026-08-03 03:24:06

●NSdns2.registrar-servers.com2026-05-24 → 2026-08-03 · 2 obs

● 2026-05-24 07:51:42
● 2026-08-03 03:24:06

○MXcortional.org2026-05-24 → 2026-06-07 · 4 obs

● 2026-05-24 07:51:42
● 2026-06-07 18:18:12
○ 2026-06-29 17:34:12
○ 2026-08-03 03:24:06

●MXmail.cortional.org2026-06-29 → 2026-08-03 · 3 obs

○ 2026-06-07 18:18:12
● 2026-06-29 17:34:12
● 2026-08-03 03:24:06

○A173.224.126.22026-05-24 → 2026-05-24 · 3 obs

● 2026-05-24 07:51:42
○ 2026-06-07 18:18:12
○ 2026-08-03 03:24:06

●A81.7.18.152026-06-07 → 2026-08-03 · 3 obs

○ 2026-05-24 07:51:42
● 2026-06-07 18:18:12
● 2026-08-03 03:24:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
cortional.org	dns1.registrar-servers.com, dns2.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.132.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortional.org (unsigned zone)

⏱️ Timing

Total: 1458ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.7.18.15`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	1	`mail.cortional.org (pri: 10)`
TXT	1	`v=spf1 a mx ip4:81.7.18.15 ip4:81.7.18.1`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

Analysis

Hierarchy

cortional.org is a parent domain of mail.cortional.org.

IP Addresses

cortional.org directs to one IP number, which is 81.7.18.15.

Host names such as mail.cortional.org and 81-7-18-15.blue.kundencontroller.de share IP numbers with cortional.org.

Name Servers

cortional.org is served by two delegated name servers, dns1.registrar-servers.com and dns2.registrar-servers.com.

cortional.org has the same name server delegation as a number of other domains, such as computerpickups.com, ifcfg.net, gvsion.com and two more.

cortional.org at least partially shares name servers with other domains, including compassws.com, bitzip.net, smartprogrammer.com and 365mind.com.

These name servers are frequently paired with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

Each of the two host names carries two IP addresses: dns1.registrar-servers.com points to 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com points to 156.154.133.200 and 2610:a1:1025::200.

Mail Servers

cortional.org routes its mail through a single mail server, mail.cortional.org.

There is one IP number for mail.cortional.org: 81.7.18.15.

cortional.org - robtex.com

cortional.org

org