cotter.de - dns.ninja

cotter.de

DNSSEC🔒 Signed (DS record present)
A2001:470:9846:200::4🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRwww.saselsoft.de
A2a01:d0:fa31::4🇺🇦 DNETUA-AS2a01:d0:8000::/33 NetAssist IPv6 Tunnel Broker
A2.241.221.8🇩🇪 TDDE-ASN12.240.0.0/13 Telefonica Germany GmbH & Co. OHG
NSns4.cotter.de ⭐
A2a01:239:20b:3000::2🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de
A212.227.101.15🇩🇪 IONOS-AS212.227.100.0/22 IONOS SE ber.de
PTRionos.saselsoft.de
NSns2.cotter.de
A2a03:4000:5:312::2🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRbind9.netcup.saselsoft.de
A5.45.96.37🇩🇪 netcup-AS5.45.96.0/22
PTRnetcup.saselsoft.de
NSns3.cotter.de
A2a09:9340:1801:11::2🇩🇪 ONEFIREHOSTING2a09:9340:1801::/48
A82.153.225.135🇬🇧 ONEFIREHOSTING82.153.225.0/24
PTR1fire.saselsoft.de
MXmx5.cotter.de ⭐
A2001:470:9846:200::6🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRmx5.saselsoft.de
A2a01:d0:fa31::6🇺🇦 DNETUA-AS2a01:d0:8000::/33 NetAssist IPv6 Tunnel Broker
PTRmx5.saselsoft.de
A2.241.221.8🇩🇪 TDDE-ASN12.240.0.0/13 Telefonica Germany GmbH & Co. OHG
PTRdynamic-002-241-221-008.2.241.pool.telefonica.de
MXmail2.cotter.de(10)
A2a03:4000:5:312::6🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRexim4.netcup.saselsoft.de
A5.45.96.37🇩🇪 netcup-AS5.45.96.0/22
PTRnetcup.saselsoft.de
MXmail3.cotter.de(20)
A2a09:9340:1801:11::6🇩🇪 ONEFIREHOSTING2a09:9340:1801::/48
A82.153.225.135🇬🇧 ONEFIREHOSTING82.153.225.0/24
PTR1fire.saselsoft.de
MXmail4.cotter.de(30)
A2a01:239:20b:3000::6🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de
A212.227.101.15🇩🇪 IONOS-AS212.227.100.0/22 IONOS SE ber.de
PTRionos.saselsoft.de
TXTv=spf1 +mx +a:mail1.cotter.de +a:mail6.cotter.de -all
SOAns4.cotter.dehostmaster@cotter.de 2026-07-17 #65

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=1786207463

Subdomains

www.cotter.de
mail4.cotter.de
mail2.cotter.de
ns2.cotter.de
mail3.cotter.de
mx5.cotter.de
ns3.cotter.de
ns4.cotter.de
ns5.cotter.de

Same first word

cotter.ru
cotter.app
cotter.net
cotter.name
cotter.eu
cotter.co
cotter.org
cotter.de
cotter.kiwi
cotter.nyc
cotter.tv
cotter.com
cotter.co.nz
cotter.se
cotter.dk
cotter.ca
cotter.co.uk

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corett.gob.mx
trotec.ca
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tector.org.uk
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tector.fi
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rotect.com
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trotec.com.sg
recott.com.tr
tector.mobi
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tector.nl
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octter.com
tecort.com
trotec.it
trotec.at
tector.uk
trotec.cz
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torcet.com
tortec.pt
trotec.eu
tortec.at
cotret.fr
tectro.de
trotec.sk
tertoc.com
trotec.be
trotec.kr
tector.net
trotec.tc
cortet.com
trotec.net
cettro.de
trotec.com.tr
trotec.se
trotec.dk
trotec.su
trotec.in
trotec.co.at
tecrot.com
tector.eu

DNS History

50 records (10 active, 40 former)

20162017201820192020202120222023202420252026NSns2.cotter.dens3.cotter.dens4.cotter.dens1.cotter.dens5.cotter.deMXmail2.cotter.demail3.cotter.demail4.cotter.demx5.cotter.demail1.cotter.demail5.cotter.desmtp.cotter.deA2.241.221.82001:470:9846:200::42a01:d0:fa31::4178.11.18.168178.11.71.432.241.113.2212.241.14.2342.241.151.862.241.27.312.241.45.92.241.5.12.241.7.1732001:470:9846::12a02:a00:e000:161::177.0.101.9577.0.176.24577.0.59.8977.0.71.21677.14.32.3877.3.231.24177.3.46.6677.8.120.8677.8.158.13477.8.233.22577.8.37.19777.8.88.18377.8.93.3882.83.71.18282.83.79.4684.58.242.23392.210.26.4392.210.89.18295.112.148.17495.112.164.16795.112.22.2995.113.137.3695.113.143.13595.113.7.222
○NSns1.cotter.de2015-04-30 → 2018-04-07 · 4 obs
● 2015-04-30 08:07:52
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
○ 2026-08-08 17:02:16
●NSns2.cotter.de2015-04-30 → 2026-08-08 · 5 obs
● 2015-04-30 08:07:52
● 2016-11-28 14:44:10
○ 2016-12-20 09:01:18
● 2018-04-07 08:06:52
● 2026-08-08 17:02:16
●NSns3.cotter.de2015-04-30 → 2026-08-08 · 5 obs
● 2015-04-30 08:07:52
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
●NSns4.cotter.de2016-12-20 → 2026-08-08 · 3 obs
○ 2016-11-28 14:44:10
● 2016-12-20 09:01:18
● 2026-08-08 17:02:16
○NSns5.cotter.de2018-04-07 → 2018-04-07 · 4 obs
○ 2016-12-20 09:01:18
● 2018-04-07 08:06:52
○ 2026-07-23 06:38:30
○ 2026-08-08 17:02:16
○MXmail1.cotter.de2015-04-30 → 2016-12-26 · 4 obs
● 2015-04-30 08:07:52
● 2016-12-26 15:57:52
○ 2018-04-07 08:06:52
○ 2026-08-08 17:02:16
●MXmail2.cotter.de2015-04-30 → 2026-08-08 · 5 obs
● 2015-04-30 08:07:52
● 2018-04-07 08:06:52
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
●MXmail3.cotter.de2015-04-30 → 2026-08-08 · 5 obs
● 2015-04-30 08:07:52
● 2018-04-07 08:06:52
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
●MXmail4.cotter.de2016-12-20 → 2026-08-08 · 6 obs
○ 2015-04-30 08:07:52
● 2016-12-20 09:01:18
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
○MXmail5.cotter.de2018-04-07 → 2018-04-07 · 4 obs
○ 2016-12-26 15:57:52
● 2018-04-07 08:06:52
○ 2026-07-09 05:52:16
○ 2026-08-08 17:02:16
●MXmx5.cotter.de2026-02-20 → 2026-08-08 · 5 obs
○ 2018-04-07 08:06:52
● 2026-02-20 02:46:14
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
○MXsmtp.cotter.de2018-04-07 → 2018-04-07 · 4 obs
○ 2016-12-26 15:57:52
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
○ 2026-08-08 17:02:16
○A178.11.18.1682015-10-18 → 2015-10-18 · 4 obs
○ 2015-04-30 08:07:52
● 2015-10-18 09:31:22
○ 2015-12-29 00:47:22
○ 2026-08-08 17:02:16
○A178.11.71.432016-03-26 → 2016-03-26 · 4 obs
○ 2015-12-29 00:47:22
● 2016-03-26 20:53:12
○ 2016-07-17 16:30:50
○ 2026-08-08 17:02:16
○A2.241.113.2212026-03-22 → 2026-03-22 · 4 obs
○ 2026-03-19 15:34:08
● 2026-03-22 15:40:06
○ 2026-03-31 15:34:54
○ 2026-08-08 17:02:16
○A2.241.14.2342026-05-30 → 2026-05-30 · 4 obs
○ 2026-04-21 19:47:20
● 2026-05-30 14:36:40
○ 2026-06-04 16:01:44
○ 2026-08-08 17:02:16
○A2.241.151.862026-04-09 → 2026-04-09 · 4 obs
○ 2026-04-06 15:34:58
● 2026-04-09 04:40:10
○ 2026-04-11 22:36:18
○ 2026-08-08 17:02:16
●A2.241.221.82026-08-08 → 2026-08-08 · 3 obs
○ 2026-07-23 06:38:30
● 2026-08-08 17:02:14
● 2026-08-08 17:02:16
○A2.241.27.312026-03-10 → 2026-03-10 · 4 obs
○ 2026-03-05 14:22:40
● 2026-03-10 07:35:54
○ 2026-03-13 00:07:46
○ 2026-08-08 17:02:16
○A2.241.45.92026-06-04 → 2026-06-04 · 4 obs
○ 2026-05-30 14:36:40
● 2026-06-04 16:01:44
○ 2026-06-15 22:26:58
○ 2026-08-08 17:02:16
○A2.241.5.12026-07-03 → 2026-07-03 · 4 obs
○ 2026-06-30 15:48:40
● 2026-07-03 10:06:50
○ 2026-07-09 05:52:16
○ 2026-08-08 17:02:16
○A2.241.7.1732026-06-30 → 2026-06-30 · 4 obs
○ 2026-06-29 07:09:42
● 2026-06-30 15:48:40
○ 2026-07-03 10:06:50
○ 2026-08-08 17:02:16
○A2001:470:9846::12018-04-07 → 2018-04-07 · 4 obs
○ 2016-12-26 15:57:52
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
○ 2026-08-08 17:02:16
●A2001:470:9846:200::42026-02-20 → 2026-08-08 · 5 obs
○ 2018-04-07 08:06:52
● 2026-02-20 02:46:14
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
●A2a01:d0:fa31::42026-07-23 → 2026-08-08 · 3 obs
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
● 2026-08-08 17:02:16
○A2a02:a00:e000:161::12015-04-30 → 2016-12-26 · 4 obs
● 2015-04-30 08:07:52
● 2016-12-26 15:57:52
○ 2018-04-07 08:06:52
○ 2026-08-08 17:02:16
○A77.0.101.952026-07-23 → 2026-07-23 · 4 obs
○ 2026-07-09 05:52:16
● 2026-07-23 06:38:30
○ 2026-08-08 17:02:14
○ 2026-08-08 17:02:16
○A77.0.176.2452026-04-04 → 2026-04-04 · 4 obs
○ 2026-04-03 07:19:02
● 2026-04-04 20:46:34
○ 2026-04-06 15:34:58
○ 2026-08-08 17:02:16
○A77.0.59.892026-03-13 → 2026-03-13 · 4 obs
○ 2026-03-13 00:07:46
● 2026-03-13 07:00:40
○ 2026-03-19 11:37:52
○ 2026-08-08 17:02:16
○A77.0.71.2162026-04-11 → 2026-04-11 · 4 obs
○ 2026-04-09 04:40:10
● 2026-04-11 22:36:18
○ 2026-04-18 02:59:44
○ 2026-08-08 17:02:16
○A77.14.32.382026-03-05 → 2026-03-05 · 4 obs
○ 2026-03-04 17:17:38
● 2026-03-05 14:22:40
○ 2026-03-10 07:35:54
○ 2026-08-08 17:02:16
○A77.3.231.2412026-03-19 → 2026-03-19 · 5 obs
○ 2026-03-13 07:00:40
● 2026-03-19 11:37:52
● 2026-03-19 15:34:08
○ 2026-03-22 15:40:06
○ 2026-08-08 17:02:16
○A77.3.46.662026-04-18 → 2026-04-18 · 5 obs
○ 2026-04-11 22:36:18
● 2026-04-18 02:59:44
● 2026-04-18 17:50:00
○ 2026-04-21 19:47:20
○ 2026-08-08 17:02:16
○A77.8.120.862026-03-04 → 2026-03-04 · 4 obs
○ 2026-02-21 09:56:02
● 2026-03-04 17:17:38
○ 2026-03-05 14:22:40
○ 2026-08-08 17:02:16
○A77.8.158.1342026-02-20 → 2026-08-08 · 2 obs
○ 2026-02-20 02:46:14
○ 2026-08-08 17:02:16
○A77.8.233.2252026-02-21 → 2026-02-21 · 4 obs
○ 2026-02-20 02:46:14
● 2026-02-21 09:56:02
○ 2026-03-04 17:17:38
○ 2026-08-08 17:02:16
○A77.8.37.1972026-04-03 → 2026-04-03 · 4 obs
○ 2026-04-01 03:47:40
● 2026-04-03 07:19:02
○ 2026-04-04 20:46:34
○ 2026-08-08 17:02:16
○A77.8.88.1832026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-04 16:01:44
● 2026-06-15 22:26:58
○ 2026-06-29 07:09:42
○ 2026-08-08 17:02:16
○A77.8.93.382026-04-21 → 2026-04-21 · 4 obs
○ 2026-04-18 17:50:00
● 2026-04-21 19:47:20
○ 2026-05-30 14:36:40
○ 2026-08-08 17:02:16
○A82.83.71.1822018-04-07 → 2018-04-07 · 4 obs
○ 2016-12-26 15:57:52
● 2018-04-07 08:06:52
○ 2026-02-20 02:46:14
○ 2026-08-08 17:02:16
○A82.83.79.462015-04-30 → 2015-04-30 · 3 obs
● 2015-04-30 08:07:52
○ 2015-10-18 09:31:22
○ 2026-08-08 17:02:16
○A84.58.242.2332016-11-28 → 2016-12-26 · 5 obs
○ 2016-07-17 16:30:50
● 2016-11-28 14:44:10
● 2016-12-26 15:57:52
○ 2018-04-07 08:06:52
○ 2026-08-08 17:02:16
○A92.210.26.432015-12-29 → 2015-12-29 · 4 obs
○ 2015-10-18 09:31:22
● 2015-12-29 00:47:22
○ 2016-03-26 20:53:12
○ 2026-08-08 17:02:16
○A92.210.89.1822016-07-17 → 2016-07-17 · 4 obs
○ 2016-03-26 20:53:12
● 2016-07-17 16:30:50
○ 2016-11-28 14:44:10
○ 2026-08-08 17:02:16
○A95.112.148.1742026-02-20 → 2026-02-20 · 4 obs
○ 2018-04-07 08:06:52
● 2026-02-20 02:46:14
○ 2026-02-21 09:56:02
○ 2026-08-08 17:02:16
○A95.112.164.1672026-04-06 → 2026-04-06 · 4 obs
○ 2026-04-04 20:46:34
● 2026-04-06 15:34:58
○ 2026-04-09 04:40:10
○ 2026-08-08 17:02:16
○A95.112.22.292026-04-01 → 2026-04-01 · 4 obs
○ 2026-03-31 16:48:52
● 2026-04-01 03:47:40
○ 2026-04-03 07:19:02
○ 2026-08-08 17:02:16
○A95.113.137.362026-03-31 → 2026-03-31 · 5 obs
○ 2026-03-22 15:40:06
● 2026-03-31 15:34:54
● 2026-03-31 16:48:52
○ 2026-04-01 03:47:40
○ 2026-08-08 17:02:16
○A95.113.143.1352026-06-29 → 2026-06-29 · 4 obs
○ 2026-06-15 22:26:58
● 2026-06-29 07:09:42
○ 2026-06-30 15:48:40
○ 2026-08-08 17:02:16
○A95.113.7.2222026-03-13 → 2026-03-13 · 4 obs
○ 2026-03-10 07:35:54
● 2026-03-13 00:07:46
○ 2026-03-13 07:00:40
○ 2026-08-08 17:02:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
cotter.dens2.cotter.de, ns3.cotter.de, ns4.cotter.de6 records

✅ Authoritative Response

Server:5.45.96.37

NS records: ns2.cotter.de, ns3.cotter.de, ns4.cotter.de

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 855ms | Queries: -

📄 Records

TypeCountSample Data
A12.241.221.8
AAAA22a01:d0:fa31::4, 2001:470:9846:200::4
NS3ns4.cotter.de, ns3.cotter.de...
MX4mail3.cotter.de (pri: 20), mail4.cotter.de (pri: 30)...
TXT1v=spf1 +mx +a:mail1.cotter.de +a:mail6.c
SOA1ns4.cotter.de hostmaster.cotter.de

📌 Glue Records Collected

Total: 6

In-bailiwick: 6 (ns2.cotter.de, ns2.cotter.de, ns3.cotter.de...)

Analysis

Hierarchy

The host names www.cotter.de, mail4.cotter.de, mail2.cotter.de, ns2.cotter.de and mail3.cotter.de — among a few others — fall under the parent domain cotter.de.

IP Addresses

cotter.de points to three IP numbers, namely 2.241.221.8, 2001:470:9846:200::4 and 2a01:d0:fa31::4.

saselit.de, andreas-lemcke.de, mx5.sasel.org and two other host names share IP numbers with cotter.de.

Name Servers

The authoritative name servers for cotter.de are ns2.cotter.de, ns3.cotter.de and ns4.cotter.de — three in total.

ns2.cotter.de, ns3.cotter.de and ns4.cotter.de all resolve to exactly two IP numbers apiece: ns2.cotter.de → 5.45.96.37 and 2a03:4000:5:312::2; ns3.cotter.de → 82.153.225.135 and 2a09:9340:1801:11::2; ns4.cotter.de → 212.227.101.15 and 2a01:239:20b:3000::2.

Mail Servers

Mail for cotter.de is handled by four mail servers: mail2.cotter.de, mail3.cotter.de, mail4.cotter.de and mx5.cotter.de.

Hostnames that resolve to three IP addresses:

The hostname mx5.cotter.de directs to 2.241.221.8, 2001:470:9846:200::6 and 2a01:d0:fa31::6.

Hostnames that resolve to two IP addresses:

mail2.cotter.de directs traffic to 5.45.96.37 and 2a03:4000:5:312::6.

mail3.cotter.de directs traffic to 82.153.225.135 and 2a09:9340:1801:11::6.

mail4.cotter.de directs traffic to 212.227.101.15 and 2a01:239:20b:3000::6.