cortex.com.pl - dns.ninja

`cortex.com.pl`

DNSSEC	⚠️ Not signed
A	217.117.142.201^{🇵🇱 TARMAN217.117.136.0/21}
		PTR	`net-142-201.tarman.pl`
NS	`guard2.cortex.com.pl` ⭐
		A	89.234.211.82^{🇵🇱 ZICOMNEXT89.234.208.0/20}
			PTR	`guard.cortex.com.pl`
NS	`guard.cortex.com.pl`
		A	217.117.142.194^{🇵🇱 TARMAN217.117.136.0/21}
			PTR	`guard.cortex.com.pl`
MX	`cortex-com-pl.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::b^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbbpr03cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::3^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am6pr04cu00303.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::4^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr04cu00504.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::e^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00206.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.16^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00400.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`MS=ms84836312`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf-westeu.emailsignatures3...`
SOA	`guard.cortex.com.pl`dns@guard.cortex.com.pl 2025-04-17 #2

`com.pl`

	DNSSEC	⚠️ Not signed
	NS	`a-dns.pl` ⭐ ⚠️ Not in parent delegation
	NS	`b-dns.pl` ⚠️ Not in parent delegation
	NS	`d-dns.pl` ⚠️ Not in parent delegation
	NS	`f-dns.pl` ⚠️ Not in parent delegation
	NS	`h-dns.pl` ⚠️ Not in parent delegation
	NS	`j-dns.pl` ⚠️ Not in parent delegation
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1781677878

Subdomains

guard.cortex.com.pl

guard2.cortex.com.pl

Same first word

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cortex.la

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cortex.fr

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Similar names

roxtec.com.au

txreco.com

ecotrx.com

roxtec.ir

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roxtec.ua

roxtec.pl

roxtec.dk

roxtec.fi

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excort.net

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excort.de

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trexoc.com

roxtec.kz

crotex.eu

txcore.com

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xetroc.com

roxtec.org

corext.blob.core.windows.net

roxtec.de

txcore.net

cotrex.de

roxtec.no

roxtec.co

xector.net

roxtec.com.sg

roxtec.hu

excort.com

trexco.com

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corext.com

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roxtec.in

trexco.co.in

rectox.com

xortec.fi

roxtec.com

trexco.in

roxtec.cl

trexco.net

roxtec.sk

DNS History

8 records (4 active, 4 former)

●NSguard.cortex.com.pl2015-08-06 → 2026-06-17 · 2 obs

● 2015-08-06 11:06:36
● 2026-06-17 12:39:18

●NSguard2.cortex.com.pl2016-05-18 → 2026-06-17 · 3 obs

○ 2016-04-01 21:29:02
● 2016-05-18 15:36:36
● 2026-06-17 12:39:18

○NSns1.idc.net.pl2015-08-06 → 2016-04-01 · 4 obs

● 2015-08-06 11:06:36
● 2016-04-01 21:29:02
○ 2016-05-18 15:36:36
○ 2026-06-17 12:39:18

●MXcortex-com-pl.mail.protection.outlook.com2026-03-19 → 2026-06-17 · 3 obs

○ 2017-08-28 21:14:30
● 2026-03-19 20:03:30
● 2026-06-17 12:39:18

○MXguard.cortex.com.pl2015-08-06 → 2017-08-28 · 4 obs

● 2015-08-06 11:06:36
● 2017-08-28 21:14:30
○ 2026-03-19 20:03:30
○ 2026-06-17 12:39:18

○MXguard2.cortex.com.pl2015-08-06 → 2017-08-28 · 4 obs

● 2015-08-06 11:06:36
● 2017-08-28 21:14:30
○ 2026-03-19 20:03:30
○ 2026-06-17 12:39:18

○MXguard3.cortex.com.pl2015-08-06 → 2016-04-01 · 4 obs

● 2015-08-06 11:06:36
● 2016-04-01 21:29:02
○ 2016-05-18 15:36:36
○ 2026-06-17 12:39:18

●A217.117.142.2012026-03-19 → 2026-06-17 · 2 obs

● 2026-03-19 20:03:30
● 2026-06-17 12:39:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...	-
cortex.com.pl	guard2.cortex.com.pl, guard.cortex.com.pl	2 records

✅ Authoritative Response

Server:217.117.142.194

NS records: guard2.cortex.com.pl, guard.cortex.com.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortex.com.pl (unsigned zone)

⏱️ Timing

Total: 578ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.117.142.201`
NS	2	`guard.cortex.com.pl, guard2.cortex.com.pl`
MX	1	`cortex-com-pl.mail.protection.outlook.co`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms84836312`
SOA	1	`guard.cortex.com.pl dns.guard.cortex.com`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (guard2.cortex.com.pl, guard.cortex.com.pl)

Analysis

Hierarchy

guard.cortex.com.pl and guard2.cortex.com.pl are both subdomains of cortex.com.pl.

IP Addresses

cortex.com.pl resolves to one IP address: 217.117.142.201.

cortex.com.pl shares its IP numbers with other host names like cortexch.com, cortexchemicals.com and www.cortexchemicals.com.

Name Servers

cortex.com.pl has two authoritative name servers — guard2.cortex.com.pl and guard.cortex.com.pl.

Among the domains sharing the same name servers as cortex.com.pl are cortexchemicals.com, chemenergia.com and purinova.com.

The name servers for cortex.com.pl overlap at least partially with those of other domains — for example e-city.tarnow.pl.

These name servers are regularly seen alongside ekler.da.pl and alfa.man.tarnow.pl as name servers.

guard2.cortex.com.pl resolves to 89.234.211.82. guard.cortex.com.pl resolves to 217.117.142.194. Both host names point to a single IP number.

Mail Servers

Mail for cortex.com.pl is handled by a single mail server, cortex-com-pl.mail.protection.outlook.com.

cortex-com-pl.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.0, 52.101.68.16, 52.101.73.12 and 5 others.