mail.cortex-development.com - robtex.com

mail.cortex-development.com

DNSSEC⚠️ Not signed
A213.239.215.241🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRcortex2.nebelhauch.de

cortex-development.com

DNSSEC⚠️ Not signed
A213.239.215.241🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
NSns1.first-ns.de ⭐
NSrobotns2.second-ns.de
NSrobotns3.second-ns.com
MXmail.cortex-development.com ⭐
TXTv=spf1 mx mx:cortex2.nebelhauch.de -all
SOAns1.first-ns.dedns@hetzner.com 2026-04-14 #0

MX for

cortex-development.com

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A213.239.215.241
●A213.239.215.2412015-07-08 → 2026-07-07 · 2 obs
● 2015-07-08 19:36:02
● 2026-07-07 08:33:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...-
cortex-development.comns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com2 records

✅ Authoritative Response

Server:213.133.100.103

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cortex-development.com (unsigned zone)

⏱️ Timing

Total: 1673ms | Queries: -

📄 Records

TypeCountSample Data
A1213.239.215.241

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (robotns3.second-ns.com, robotns3.second-ns.com)

Analysis

Mail Server Role

mail.cortex-development.com is a mail server for cortex-development.com.

IP Addresses

mail.cortex-development.com directs to one IP number, which is 213.239.215.241.

Among the host names that share IP numbers with mail.cortex-development.com are cortex2.nebelhauch.de, familiehartig.de, 213-239-215-241.clients.your-server.de and two others.