cortex-it.ch - dns.ninja

cortex-it.ch

DNSSEC⚠️ Not signed
A5.187.57.30🇨🇭 CTX-BRN-AS5.187.57.0/24
PTR30-57-187-5.static.braincloud.ch
NSns1.cortex-it.ch ⭐
A5.187.57.23🇨🇭 CTX-BRN-AS5.187.57.0/24
PTRns1.cortex-it.ch
NSns2.cortex-it.ch
A5.187.57.24🇨🇭 CTX-BRN-AS5.187.57.0/24
PTRns2.cortex-it.ch
MXmail1.cortex-it.ch ⭐
A5.187.63.111🇨🇭 CTX-BRN-AS5.187.63.0/24
PTRmail01.wirdgroup.com
MXmail2.cortex-it.ch(10)
A5.187.63.112🇨🇭 CTX-BRN-AS5.187.63.0/24
PTRmail02.wirdgroup.com
TXTv=spf1 mx include:braincloud.ch a:mail2.cortex-it.ch a:mail1.cortex-it.ch ~all
TXTswisssign-check=wrP3KfKU6NavQwYqC2OXchLABjo
TXTMS=ms37587582
SOAns1.cortex-it.chns2@cortex-it.ch 2026-04-23 #1

ch

DNSSEC🔒 Signed (DS record present)
NSa.nic.ch ⭐
NSb.nic.ch
NSd.nic.ch
NSe.nic.ch
NSf.nic.ch
SOAa.nic.chdns-operation@switch.ch 2026-08-06 #21

Subdomains

mail2.cortex-it.ch
dns1.cortex-it.ch
mail1.cortex-it.ch
ns2.cortex-it.ch
dns2.cortex-it.ch
ns1.cortex-it.ch

Same first word

cortex-it.ch
cortex-it.com

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSns1.cortex-it.chns2.cortex-it.chdns1.cortex-it.chdns2.cortex-it.chMXmail1.cortex-it.chmail2.cortex-it.chA5.187.57.302a01:41c0:0:31::155.187.56.28
○NSdns1.cortex-it.ch2015-09-02 → 2016-12-29 · 4 obs
● 2015-09-02 05:32:40
● 2016-12-29 15:27:52
○ 2026-02-25 06:32:18
○ 2026-08-06 08:41:06
○NSdns2.cortex-it.ch2015-09-02 → 2016-12-29 · 4 obs
● 2015-09-02 05:32:40
● 2016-12-29 15:27:52
○ 2026-02-25 06:32:18
○ 2026-08-06 08:41:06
●NSns1.cortex-it.ch2026-02-25 → 2026-08-06 · 3 obs
○ 2016-12-29 15:27:52
● 2026-02-25 06:32:18
● 2026-08-06 08:41:06
●NSns2.cortex-it.ch2026-02-25 → 2026-08-06 · 3 obs
○ 2016-12-29 15:27:52
● 2026-02-25 06:32:18
● 2026-08-06 08:41:06
●MXmail1.cortex-it.ch2015-09-02 → 2026-08-06 · 2 obs
● 2015-09-02 05:32:40
● 2026-08-06 08:41:06
●MXmail2.cortex-it.ch2015-09-02 → 2026-08-06 · 2 obs
● 2015-09-02 05:32:40
● 2026-08-06 08:41:06
○A2a01:41c0:0:31::152015-09-02 → 2016-12-29 · 4 obs
● 2015-09-02 05:32:40
● 2016-12-29 15:27:52
○ 2026-02-25 06:32:18
○ 2026-08-06 08:41:06
○A5.187.56.282015-09-02 → 2016-12-29 · 4 obs
● 2015-09-02 05:32:40
● 2016-12-29 15:27:52
○ 2026-02-25 06:32:18
○ 2026-08-06 08:41:06
●A5.187.57.302026-02-25 → 2026-08-06 · 3 obs
○ 2016-12-29 15:27:52
● 2026-02-25 06:32:18
● 2026-08-06 08:41:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cha.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...-
cortex-it.chns1.cortex-it.ch, ns2.cortex-it.ch2 records

✅ Authoritative Response

Server:5.187.57.23

NS records: ns1.cortex-it.ch, ns2.cortex-it.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortex-it.ch (unsigned zone)

⏱️ Timing

Total: 455ms | Queries: -

📄 Records

TypeCountSample Data
A15.187.57.30
NS2ns1.cortex-it.ch, ns2.cortex-it.ch
MX2mail2.cortex-it.ch (pri: 10), mail1.cortex-it.ch (pri: 1)
TXT3v=spf1 mx include:braincloud.ch a:mail2., MS=ms37587582...
SOA1ns1.cortex-it.ch ns2.cortex-it.ch

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.cortex-it.ch, ns2.cortex-it.ch)

Analysis

Hierarchy

cortex-it.ch serves as parent to mail2.cortex-it.ch, dns1.cortex-it.ch, mail1.cortex-it.ch, ns2.cortex-it.ch, dns2.cortex-it.ch along with a few other host names.

IP Addresses

cortex-it.ch resolves to just one IP address, 5.187.57.30.

Name Servers

Two name servers handle the delegation for cortex-it.ch: ns1.cortex-it.ch and ns2.cortex-it.ch.

cortex-it.ch shares its NS records with other domains, for example 57.187.5.in-addr.arpa, wirdgroup.com, braincall.ch and two others.

ns1.cortex-it.ch directs to 5.187.57.23 and ns2.cortex-it.ch directs to 5.187.57.24; each host name points to exactly one IP number.

Mail Servers

cortex-it.ch is served by two mail servers, mail1.cortex-it.ch and mail2.cortex-it.ch.

mail1.cortex-it.ch directs to 5.187.63.111 and mail2.cortex-it.ch directs to 5.187.63.112; each host name points to exactly one IP number.