`cortexbilisim.com`

DNSSEC	⚠️ Not signed
A	94.73.147.204^{🇹🇷 CIZGI94.73.147.0/24 NATRO HOSTING 94_73_147}
		PTR	`94-73-147-204.cizgi.net.tr`
NS	`ns1.natrohost.com` ⭐
		A	83.217.77.15^{🇧🇪 COMBELL-AS83.217.64.0/19 Combell Network}
			PTR	`83.217.77.15.static.hosted.by.combell.com`
		A	89.19.5.198^{🇹🇷 CIZGI89.19.5.0/24 Cizgi Telekom Block 89_19_5}
			PTR	`ns1.natrohost.com`
NS	`ns2.natrohost.com`
		A	89.19.5.199^{🇹🇷 CIZGI89.19.5.0/24 Cizgi Telekom Block 89_19_5}
			PTR	`ns2.natrohost.com`
		A	168.119.94.138^{🇩🇪 Hetzner168.119.0.0/16 HETZNER-DC}
			PTR	`ns2.natrohost.com`
MX	`mx-in04.natrohost.com` ⭐
		A	94.73.188.32^{🇹🇷 CIZGI94.73.188.0/24 TELEKOM BLOCK}
			PTR	`mx-in04.natrohost.com`
MX	`mx-in04b.natrohost.com`⁽¹⁰⁰⁰⁾
		A	94.73.188.33^{🇹🇷 CIZGI94.73.188.0/24 TELEKOM BLOCK}
			PTR	`mx-in04b.natrohost.com`
TXT	`v=spf1 +a +mx +ip4:89.19.2.241 +ip4:89.19.2.242 include:mx-in04.natrohost.com...`
SOA	`ns1.natrohost.com`hostmaster@natrohost.com 2025-04-22 #1

`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=1771291435

Previously MX for

cortexbilisim.com

Subdomains

mail.cortexbilisim.com

Same first word

cortexbilisim.com

DNS History

15 records (5 active, 10 former)

○NSns1.cortexbilisim.com2015-08-07 → 2015-11-27 · 4 obs

● 2015-08-07 22:29:04
● 2015-11-27 05:44:40
○ 2016-02-29 11:57:48
○ 2026-03-23 22:43:14

○NSns1.korteksbilisim.com2016-02-29 → 2017-02-14 · 5 obs

○ 2015-11-27 05:44:40
● 2016-02-29 11:57:48
● 2017-02-14 05:51:16
○ 2026-03-03 02:39:32
○ 2026-03-23 22:43:14

●NSns1.natrohost.com2026-03-03 → 2026-03-23 · 3 obs

○ 2017-02-14 05:51:16
● 2026-03-03 02:39:32
● 2026-03-23 22:43:14

○NSns2.cortexbilisim.com2015-08-07 → 2015-11-27 · 4 obs

● 2015-08-07 22:29:04
● 2015-11-27 05:44:40
○ 2016-02-29 11:57:48
○ 2026-03-23 22:43:14

○NSns2.korteksbilisim.com2016-02-29 → 2017-02-14 · 5 obs

○ 2015-11-27 05:44:40
● 2016-02-29 11:57:48
● 2017-02-14 05:51:16
○ 2026-03-03 02:39:32
○ 2026-03-23 22:43:14

●NSns2.natrohost.com2026-03-03 → 2026-03-23 · 3 obs

○ 2017-02-14 05:51:16
● 2026-03-03 02:39:32
● 2026-03-23 22:43:14

○MXcortexbilisim.com2015-08-07 → 2015-11-27 · 4 obs

● 2015-08-07 22:29:04
● 2015-11-27 05:44:40
○ 2016-02-29 11:57:48
○ 2026-03-23 22:43:14

○MXfallbackmx.spamexperts.eu2016-06-29 → 2017-02-14 · 5 obs

○ 2016-02-29 11:57:48
● 2016-06-29 11:11:48
● 2017-02-14 05:51:16
○ 2026-03-03 02:39:32
○ 2026-03-23 22:43:14

○MXmail.cortexbilisim.com2015-08-07 → 2016-02-29 · 4 obs

● 2015-08-07 22:29:04
● 2016-02-29 11:57:48
○ 2016-06-29 11:11:48
○ 2026-03-23 22:43:14

●MXmx-in04.natrohost.com2026-03-03 → 2026-03-23 · 3 obs

○ 2017-02-14 05:51:16
● 2026-03-03 02:39:32
● 2026-03-23 22:43:14

●MXmx-in04b.natrohost.com2026-03-03 → 2026-03-23 · 3 obs

○ 2017-02-14 05:51:16
● 2026-03-03 02:39:32
● 2026-03-23 22:43:14

○MXmx.spamexperts.com2016-06-29 → 2017-02-14 · 5 obs

○ 2016-02-29 11:57:48
● 2016-06-29 11:11:48
● 2017-02-14 05:51:16
○ 2026-03-03 02:39:32
○ 2026-03-23 22:43:14

○A37.9.202.582016-02-29 → 2017-02-14 · 5 obs

○ 2015-11-27 05:44:40
● 2016-02-29 11:57:48
● 2017-02-14 05:51:16
○ 2026-03-03 02:39:32
○ 2026-03-23 22:43:14

○A85.159.64.1262015-08-07 → 2015-11-27 · 4 obs

● 2015-08-07 22:29:04
● 2015-11-27 05:44:40
○ 2016-02-29 11:57:48
○ 2026-03-23 22:43:14

●A94.73.147.2042026-03-03 → 2026-03-23 · 3 obs

○ 2017-02-14 05:51:16
● 2026-03-03 02:39:32
● 2026-03-23 22:43:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cortexbilisim.com	ns1.natrohost.com, ns2.natrohost.com	4 records

✅ Authoritative Response

Server:168.119.94.138

NS records: ns1.natrohost.com, ns2.natrohost.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortexbilisim.com (unsigned zone)

⏱️ Timing

Total: 3888ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`94.73.147.204`
NS	2	`ns2.natrohost.com, ns1.natrohost.com`
MX	2	`mx-in04b.natrohost.com (pri: 1000), mx-in04.natrohost.com (pri: 1)`
TXT	1	`v=spf1 +a +mx +ip4:89.19.2.241 +ip4:89.1`
SOA	1	`ns1.natrohost.com hostmaster.natrohost.c`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.natrohost.com, ns1.natrohost.com, ns2.natrohost.com...)

Analysis

Hierarchy

cortexbilisim.com is the parent of mail.cortexbilisim.com.

IP Addresses

cortexbilisim.com resolves to one IP number: 94.73.147.204.

other host names including avkar.com, kelimelen.com, safir.com.tr, ozkarademir.com and abdullahonen.com share IP numbers with cortexbilisim.com.

Name Servers

cortexbilisim.com is delegated to two name servers ns1.natrohost.com and ns2.natrohost.com.

cortexbilisim.com shares the same name server setup as other domains, for instance 210.148.37.in-addr.arpa, enkim.com.tr, osmanmert.com, digimocha.com and dedektifozel.com.

cortexbilisim.com at least partially shares name servers with other domains, for instance duaci.com.

Host names with two IP numbers:

The host name ns1.natrohost.com points to 83.217.77.15 and 89.19.5.198; the host name ns2.natrohost.com points to 89.19.5.199 and 168.119.94.138.

Mail Servers

Two mail servers handle cortexbilisim.com: mx-in04.natrohost.com and mx-in04b.natrohost.com.

cortexbilisim.com shares the same mail server setup as other domains, for instance madenci.net, demirelmetal.com, bursaarastirma.com, ecin.com.tr and platformbt.com.

cortexbilisim.com shares at least some mail servers with other domains, including eliteplast.com.tr, griffinyachts.com, cakirasit.com and lastikjantavm.com.

Host names with one IP number:

mx-in04.natrohost.com points to 94.73.188.32

mx-in04b.natrohost.com points to 94.73.188.33

cortexbilisim.com - robtex.com