csu20.de - robtex.com

csu20.de

DNSSEC⚠️ Not signed
A45.67.70.51🇩🇪 SYNLINQ45.67.70.0/24
PTR45.67.70.51.1nic.de
NSns1.axcoredns.com ⭐ ⚠️ Not in parent delegation
A2a09:71c0::101:0:12🇩🇪 SYNLINQ2a09:71c0::/29
A45.67.68.12🇩🇪 SYNLINQ45.67.68.0/24
PTRns1-tec.de
NSns1-tec.de ⚠️ Not in zone NS records
A2a09:71c0::101:0:12🇩🇪 SYNLINQ2a09:71c0::/29
A45.67.68.12🇩🇪 SYNLINQ45.67.68.0/24
PTRns1-tec.de
NSns2-tec.de ⚠️ Not in zone NS records
A2a01:4f8:c014:d47::12🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A46.224.169.132🇮🇷 Hetzner46.224.0.0/15 HETZNER-DC
PTRns2-tec.de
NSns2.axcoredns.org ⚠️ Not in parent delegation
A2a01:4f8:c014:d47::12🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A46.224.169.132🇮🇷 Hetzner46.224.0.0/15 HETZNER-DC
PTRns2-tec.de
MXmx1.securemail.name ⭐
A92.246.85.247🇩🇪 SkyLink92.246.85.0/24
PTRmx.securemail.name
MXmx2.securemail.name ⭐
A92.246.85.247🇩🇪 SkyLink92.246.85.0/24
PTRmx.securemail.name
TXTv=spf1 include:spf.securemail.name a mx ~all
SOAns1.axcoredns.comwebmaster@csu20.de 2026-02-18 #2

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1775980401

Same first word

csu20.de

DNS History

9 records (7 active, 2 former)

20162017201820192020202120222023202420252026NSns1-tec.dens1.axcoredns.comns2-tec.dens2.axcoredns.orgMXmx1.securemail.namemx2.securemail.nameA45.67.70.51136.243.196.27178.63.49.78
●NSns1-tec.de2015-07-12 → 2026-04-12 · 2 obs
● 2015-07-12 13:43:58
● 2026-04-12 08:01:02
●NSns1.axcoredns.com2026-04-12 → 2026-04-12 · 3 obs
○ 2015-07-12 13:43:58
● 2026-04-12 08:01:00
● 2026-04-12 08:01:02
●NSns2-tec.de2015-07-12 → 2026-04-12 · 2 obs
● 2015-07-12 13:43:58
● 2026-04-12 08:01:02
●NSns2.axcoredns.org2026-04-12 → 2026-04-12 · 3 obs
○ 2015-07-12 13:43:58
● 2026-04-12 08:01:00
● 2026-04-12 08:01:02
●MXmx1.securemail.name2015-07-12 → 2026-04-12 · 2 obs
● 2015-07-12 13:43:58
● 2026-04-12 08:01:02
●MXmx2.securemail.name2015-07-12 → 2026-04-12 · 2 obs
● 2015-07-12 13:43:58
● 2026-04-12 08:01:02
○A136.243.196.272017-04-03 → 2017-04-03 · 4 obs
○ 2016-07-17 16:09:46
● 2017-04-03 18:33:40
○ 2020-04-10 01:42:12
○ 2026-04-12 08:01:02
○A178.63.49.782015-07-12 → 2016-07-17 · 4 obs
● 2015-07-12 13:43:58
● 2016-07-17 16:09:46
○ 2017-04-03 18:33:40
○ 2026-04-12 08:01:02
●A45.67.70.512020-04-10 → 2026-04-12 · 3 obs
○ 2017-04-03 18:33:40
● 2020-04-10 01:42:12
● 2026-04-12 08:01:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dez.nic.de, a.nic.de, f.nic.de-
csu20.dens1-tec.de, ns2-tec.de4 records

✅ Authoritative Response

Server:45.67.68.12

NS records: ns1-tec.de, ns2-tec.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csu20.de (unsigned zone)

⏱️ Timing

Total: 1178ms | Queries: -

📄 Records

TypeCountSample Data
A145.67.70.51
NS2ns1.axcoredns.com, ns2.axcoredns.org
MX2mx1.securemail.name (pri: 100), mx2.securemail.name (pri: 100)
TXT1v=spf1 include:spf.securemail.name a mx
SOA1ns1.axcoredns.com webmaster.csu20.de

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1-tec.de, ns2-tec.de, ns1-tec.de...)

Analysis

IP Addresses

csu20.de points to a single IP number: 45.67.70.51.

Other host names, for instance mail.netz-infos.de, alphamobile.de, pharmadent.de, screenpainter.de and infozahn.de share IP numbers with csu20.de.

Name Servers

csu20.de is delegated to four name servers: ns1-tec.de, ns2-tec.de, ns1.axcoredns.com and ns2.axcoredns.org.

csu20.de at least partially shares name servers with other domains, for instance power-of-wellness.de, chi2.de, workcat.de, rechtsanwalt-spies.de and prise-online.de.

Hostnames with two IP numbers

ns1-tec.de points to 2a09:71c0::101:0:12 and 45.67.68.12

ns2-tec.de points to 2a01:4f8:c014:d47::12 and 46.224.169.132

ns1.axcoredns.com points to 2a09:71c0::101:0:12 and 45.67.68.12

ns2.axcoredns.org points to 2a01:4f8:c014:d47::12 and 46.224.169.132

Pointing to 2a09:71c0::101:0:12: ns1-tec.de and ns1.axcoredns.com

Pointing to 45.67.68.12: ns1-tec.de and ns1.axcoredns.com

Pointing to 2a01:4f8:c014:d47::12: ns2-tec.de and ns2.axcoredns.org

Pointing to 46.224.169.132: ns2-tec.de and ns2.axcoredns.org

Mail Servers

csu20.de is handled by two mail servers: mx1.securemail.name and mx2.securemail.name.

csu20.de uses the same mail server configuration as other domains, such as 67.68.52.1nic.de, mulebite.com, 3dprintprofi.de, pafra.de and europhysicsfun.de.

Host names sharing a single IP:

mx1.securemail.name points to 92.246.85.247

mx2.securemail.name points to 92.246.85.247

Host names that point to 92.246.85.247: mx1.securemail.name and mx2.securemail.name