nerdcheck.de - robtex.com

nerdcheck.de

DNSSEC⚠️ Not signed
A2a01:238:20a:202:1147::🇩🇪 STRATO2a01:238:20a::/48 Strato AG
PTRw93.rzone.de
A81.169.145.147🇩🇪 STRATO81.169.144.0/22 AG
NSshades17.rzone.de ⭐
A2607:f1c0:fe:53:185:132:34:144🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRshades17.rzone.de
A185.132.34.144🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRshades17.rzone.de
NSdocks07.rzone.de
A2001:8d8:fe:53:5747:2a74:d:7🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRdocks07.rzone.de
A217.160.80.134🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRdocks07.rzone.de
MXsmtpin.rzone.de ⭐
A2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG
A81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG
PTRip-81-169-145-97.defastlink.net
SOAshades17.rzone.dehostmaster@strato-rz.de 2025-04-01 #28

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=1776268173

Subdomains

www.nerdcheck.de

Same first word

nerdcheck.de
nerdcheck.com

DNS History

16 records (5 active, 11 former)

20162017201820192020202120222023202420252026NSdocks07.rzone.deshades17.rzone.dens5.kasserver.comns6.kasserver.comns65.1und1.dens66.1und1.deMXsmtpin.rzone.demx00.kundenserver.demx01.kundenserver.dew0140789.kasserver.comA2a01:238:20a:202:1147::81.169.145.1472001:8d8:100f:f000::200212.227.127.220217.160.0.14485.13.143.129
●NSdocks07.rzone.de2026-03-27 → 2026-04-15 · 3 obs
○ 2017-03-16 12:31:08
● 2026-03-27 15:45:18
● 2026-04-15 16:13:40
○NSns5.kasserver.com2017-03-16 → 2017-03-16 · 4 obs
○ 2016-02-28 22:55:40
● 2017-03-16 12:31:08
○ 2026-03-27 15:45:18
○ 2026-04-15 16:13:40
○NSns6.kasserver.com2017-03-16 → 2017-03-16 · 4 obs
○ 2016-02-28 22:55:40
● 2017-03-16 12:31:08
○ 2026-03-27 15:45:18
○ 2026-04-15 16:13:40
○NSns65.1und1.de2015-07-23 → 2015-11-20 · 4 obs
● 2015-07-23 18:51:08
● 2015-11-20 18:59:36
○ 2016-02-28 22:55:40
○ 2026-04-15 16:13:40
○NSns66.1und1.de2015-07-23 → 2015-11-20 · 4 obs
● 2015-07-23 18:51:08
● 2015-11-20 18:59:36
○ 2016-02-28 22:55:40
○ 2026-04-15 16:13:40
●NSshades17.rzone.de2026-03-27 → 2026-04-15 · 3 obs
○ 2017-03-16 12:31:08
● 2026-03-27 15:45:18
● 2026-04-15 16:13:40
○MXmx00.kundenserver.de2015-07-23 → 2015-11-20 · 4 obs
● 2015-07-23 18:51:08
● 2015-11-20 18:59:36
○ 2016-02-28 22:55:40
○ 2026-04-15 16:13:40
○MXmx01.kundenserver.de2015-07-23 → 2015-11-20 · 4 obs
● 2015-07-23 18:51:08
● 2015-11-20 18:59:36
○ 2016-02-28 22:55:40
○ 2026-04-15 16:13:40
●MXsmtpin.rzone.de2026-03-27 → 2026-04-15 · 3 obs
○ 2017-03-16 12:31:08
● 2026-03-27 15:45:18
● 2026-04-15 16:13:40
○MXw0140789.kasserver.com2017-03-16 → 2017-03-16 · 4 obs
○ 2016-02-28 22:55:40
● 2017-03-16 12:31:08
○ 2026-03-27 15:45:18
○ 2026-04-15 16:13:40
○A2001:8d8:100f:f000::2002026-03-27 → 2026-03-27 · 3 obs
○ 2017-03-16 12:31:08
● 2026-03-27 15:45:18
○ 2026-04-15 16:13:40
○A212.227.127.2202015-07-23 → 2015-11-20 · 4 obs
● 2015-07-23 18:51:08
● 2015-11-20 18:59:36
○ 2016-02-28 22:55:40
○ 2026-04-15 16:13:40
○A217.160.0.1442026-03-27 → 2026-03-27 · 3 obs
○ 2017-03-16 12:31:08
● 2026-03-27 15:45:18
○ 2026-04-15 16:13:40
●A2a01:238:20a:202:1147::2026-04-15 → 2026-04-15 · 2 obs
○ 2026-03-27 15:45:18
● 2026-04-15 16:13:40
●A81.169.145.1472026-04-15 → 2026-04-15 · 2 obs
○ 2026-03-27 15:45:18
● 2026-04-15 16:13:40
○A85.13.143.1292017-03-16 → 2017-03-16 · 4 obs
○ 2016-02-28 22:55:40
● 2017-03-16 12:31:08
○ 2026-03-27 15:45:18
○ 2026-04-15 16:13:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
nerdcheck.dedocks07.rzone.de, shades17.rzone.de-

✅ Authoritative Response

Server:217.160.80.134

NS records: docks07.rzone.de, shades17.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nerdcheck.de (unsigned zone)

⏱️ Timing

Total: 1058ms | Queries: -

📄 Records

TypeCountSample Data
A181.169.145.147
AAAA12a01:238:20a:202:1147::
NS2docks07.rzone.de, shades17.rzone.de
MX1smtpin.rzone.de (pri: 5)
SOA1shades17.rzone.de hostmaster.strato-rz.d

Analysis

Hierarchy

nerdcheck.de is the parent of www.nerdcheck.de.

IP Addresses

nerdcheck.de resolves to two IP numbers: 2a01:238:20a:202:1147:: and 81.169.145.147.

other host names including rbum.de, fotoshophh.biz, thiele-glas.at, glasaetzfolien.de and laptoptaschen-shop.de share IP numbers with nerdcheck.de.

Name Servers

nerdcheck.de is delegated to two name servers docks07.rzone.de and shades17.rzone.de.

nerdcheck.de shares the same name server setup as other domains, for instance mehrshop24.de, hondenlogie.nl, virtuelles-kibbuz.de, juschkat.com and bartdeboer.com.

nerdcheck.de at least partially shares name servers with other domains, for instance trofishop.de, kliernet.de, rewen.de, besuchsmodelle.de and felixkrueger.com.

These name servers are commonly used with the following name servers: docks01.rzone.de, shades18.rzone.de, shades13.rzone.de, docks11.rzone.de, docks14.rzone.de, shades03.rzone.de, shades07.rzone.de, shades14.rzone.de, docks20.rzone.de and docks13.rzone.de.

Host names with two IP numbers:

The host name docks07.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:7 and 217.160.80.134; the host name shades17.rzone.de points to 2607:f1c0:fe:53:185:132:34:144 and 185.132.34.144.

Mail Servers

nerdcheck.de is handled by a single mail server, smtpin.rzone.de.

nerdcheck.de shares the same mail server setup as other domains, for instance ls-nordic.com, plehn.de, mail.flugfunktrainer.de, kp-immo.de and moltec.de.

smtpin.rzone.de resolves to two IP numbers: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.