mx3.science-computing.de - dns.ninja

mx3.science-computing.de

DNSSEC⚠️ Not signed
A217.243.222.154🇩🇪 DTAG217.224.0.0/11 Deutsche Telekom AG, Internet service provider

science-computing.de

DNSSEC⚠️ Not signed
A217.243.222.132🇩🇪 DTAG217.224.0.0/11 Deutsche Telekom AG, Internet service provider
NSdns1.science-computing.de ⭐
NSdns1.belwue.de
NSdns2.science-computing.de
NSdns3.belwue.de
NSdns3.science-computing.de
MXmx1.science-computing.de ⭐
MXmx3.science-computing.de ⭐
MXmx4.science-computing.de ⭐
TXThave-i-been-pwned-verification=a362b105c96ef25fc64ebdbde18a0ff7
TXTB2Rp43GSkDCHQ134WM7UtWi9Gq4Svv9F
TXTJdrtrEUfUJrSegvfEi9gvpduFBYmHNWY
TXTv=spf1 mx ~all
TXTeeZ1LeMf94Ry9hFewKH9Fp8jYn3JwNnn
TXT_globalsign-domain-verification=SSpLypfhKGKeZH0xtZmIhNeTBsEmQP7okTRA4TSvdG
SOAdns1.science-computing.dednsmaster@science-computing.de 2026-06-09 #1

PTR for

154.128.222.243.217.in-addr.arpa

MX for

science-computing.com
science-computing.de

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A217.243.222.154193.197.16.20
○A193.197.16.202015-05-24 → 2016-12-19 · 4 obs
● 2015-05-24 09:55:18
● 2016-12-19 12:55:00
○ 2026-02-15 23:24:38
○ 2026-06-14 07:35:30
●A217.243.222.1542026-02-15 → 2026-06-14 · 6 obs
○ 2016-12-19 12:55:00
● 2026-02-15 23:24:38
● 2026-03-26 05:24:04
○ 2026-05-04 15:11:04
● 2026-06-14 05:56:32
● 2026-06-14 07:35:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
def.nic.de, z.nic.de, a.nic.de-
science-computing.dedns2.science-computing.de, dns1.belwue.de, dns3.science-computing.de, dns1.science-computing.de...7 records

✅ Authoritative Response

Server:217.243.222.138

NS records: dns2.science-computing.de, dns1.belwue.de, dns3.science-computing.de, dns1.science-computing.de, dns3.belwue.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for science-computing.de (unsigned zone)

⏱️ Timing

Total: 568ms | Queries: -

📄 Records

TypeCountSample Data
A1217.243.222.154

📌 Glue Records Collected

Total: 7

In-bailiwick: 3 (dns3.science-computing.de, dns2.science-computing.de, dns1.science-computing.de)

Out-of-bailiwick: 4 (dns3.belwue.de, dns1.belwue.de, dns3.belwue.de...)

Analysis

Mail Server Role

mx3.science-computing.de is the mail server for science-computing.com and science-computing.de.

The mail servers mx1.science-computing.de and mx4.science-computing.de are often used together with mx3.science-computing.de.

IP Addresses

mx3.science-computing.de points to a single IP number: 217.243.222.154.