duerr.cz - robtex.com

duerr.cz

DNSSEC⚠️ Not signed
A89.31.143.90🇩🇪 UDAG89.31.143.0/24
NSns.udag.de ⭐
A2001:8d8:fe:53:217:160:80:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns.udag.de
A217.160.80.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns.udag.de
NSns.udag.net
A2607:f1c0:fe:53:185:132:33:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.net
A185.132.33.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.net
NSns.udag.org
A2607:f1c0:fe:53:185:132:34:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.org
A185.132.34.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.org
MXmx00.udag.de ⭐
A62.146.106.39🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx00.udag.de
MXmx01.udag.de(20)
A62.146.106.40🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx01.udag.de
TXTv=spf1 mx include:_spf.senders.scnem.com -all
SOAns.udag.dehostmaster@united-domains.de 2023-11-29 #4

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1775972834

Same first word

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DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSns.udag.dens.udag.netns.udag.orgserver1-ns1.udagdns.netserver1-ns2.udagdns.netserver1-ns3.udagdns.netMXmx00.udag.demx01.udag.deA89.31.143.9089.31.143.189.31.143.1689.31.143.7
●NSns.udag.de2015-10-13 → 2026-04-12 · 3 obs
○ 2015-04-09 13:50:42
● 2015-10-13 04:43:32
● 2026-04-12 06:39:00
●NSns.udag.net2015-10-13 → 2026-04-12 · 3 obs
○ 2015-04-09 13:50:42
● 2015-10-13 04:43:32
● 2026-04-12 06:39:00
●NSns.udag.org2015-10-13 → 2026-04-12 · 3 obs
○ 2015-04-09 13:50:42
● 2015-10-13 04:43:32
● 2026-04-12 06:39:00
○NSserver1-ns1.udagdns.net2015-04-09 → 2015-04-09 · 3 obs
● 2015-04-09 13:50:42
○ 2015-10-13 04:43:32
○ 2026-04-12 06:39:00
○NSserver1-ns2.udagdns.net2015-04-09 → 2015-04-09 · 3 obs
● 2015-04-09 13:50:42
○ 2015-10-13 04:43:32
○ 2026-04-12 06:39:00
○NSserver1-ns3.udagdns.net2015-04-09 → 2015-04-09 · 3 obs
● 2015-04-09 13:50:42
○ 2015-10-13 04:43:32
○ 2026-04-12 06:39:00
●MXmx00.udag.de2015-04-09 → 2026-04-12 · 2 obs
● 2015-04-09 13:50:42
● 2026-04-12 06:39:00
●MXmx01.udag.de2015-04-09 → 2026-04-12 · 2 obs
● 2015-04-09 13:50:42
● 2026-04-12 06:39:00
○A89.31.143.12017-03-18 → 2017-03-18 · 4 obs
○ 2016-04-24 04:24:02
● 2017-03-18 06:53:42
○ 2026-03-26 04:49:30
○ 2026-04-12 06:39:00
○A89.31.143.162015-12-30 → 2016-04-24 · 5 obs
○ 2015-10-13 04:43:32
● 2015-12-30 11:13:28
● 2016-04-24 04:24:02
○ 2017-03-18 06:53:42
○ 2026-04-12 06:39:00
○A89.31.143.72015-04-09 → 2015-10-13 · 4 obs
● 2015-04-09 13:50:42
● 2015-10-13 04:43:32
○ 2015-12-30 11:13:28
○ 2026-04-12 06:39:00
●A89.31.143.902026-03-26 → 2026-04-12 · 3 obs
○ 2017-03-18 06:53:42
● 2026-03-26 04:49:30
● 2026-04-12 06:39:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
duerr.czns.udag.de, ns.udag.net, ns.udag.org-

✅ Authoritative Response

Server:185.132.34.253

NS records: ns.udag.de, ns.udag.net, ns.udag.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duerr.cz (unsigned zone)

⏱️ Timing

Total: 946ms | Queries: -

📄 Records

TypeCountSample Data
A189.31.143.90
NS3ns.udag.de, ns.udag.org...
MX2mx01.udag.de (pri: 20), mx00.udag.de (pri: 10)
TXT1v=spf1 mx include:_spf.senders.scnem.com
SOA1ns.udag.de hostmaster.united-domains.de

Analysis

IP Addresses

duerr.cz maps to IP address 89.31.143.90.

Other host names, for instance oliverschmidt.tv, primofit.eu, wein-trophy.com, prosky.eu and fitnas.eu share IP numbers with duerr.cz.

Name Servers

duerr.cz is delegated to name servers ns.udag.de, ns.udag.net and ns.udag.org.

duerr.cz at least partially shares name servers with other domains such as smac-mca.nl, flex.fund, mobymovies.de, mobile-minds.com and leuze.pl.

Host names with two IP numbers:

ns.udag.de points to 2001:8d8:fe:53:217:160:80:253 and 217.160.80.253.

ns.udag.net points to 2607:f1c0:fe:53:185:132:33:253 and 185.132.33.253.

ns.udag.org points to 2607:f1c0:fe:53:185:132:34:253 and 185.132.34.253.

Mail Servers

Two mail servers handle duerr.cz: mx00.udag.de and mx01.udag.de.

duerr.cz shares the same mail server setup as other domains, including primago.de, schimmelhilfe-hochrhein.de, ha.nf, mac-its.eu and gutschein-anbieter.com.

Host names with a single IP address:

mx00.udag.de points to 62.146.106.39

mx01.udag.de points to 62.146.106.40