firstclass.expert - dns.ninja

firstclass.expert

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 include:_smtp.udag.de ~all
SOAns.udag.dehostmaster@united-domains.de 2023-12-18 #2

expert

DNSSEC🔒 Signed (DS record present)
NSv0n0.nic.expert ⭐
NSv0n1.nic.expert
NSv0n2.nic.expert
NSv0n3.nic.expert
NSv2n0.nic.expert
NSv2n1.nic.expert
SOAv0n0.nic.experthostmaster@donuts.email serial=1780547300

Same first word

firstclass.estate
firstclass.de
firstclass.agency
firstclass.net
firstclass.cz
firstclass.sk
firstclass.international
firstclass.education
firstclass.sh.cn
firstclass.com.hk
firstclass.cl
firstclass.ch
firstclass.hu
firstclass.cn
firstclass.fitness
firstclass.co.th
firstclass.fi
firstclass.com.sa
firstclass.solutions
firstclass.sa
firstclass.ru
firstclass.com.br
firstclass.taxi
firstclass.me
firstclass.cc
firstclass.edu.hk
firstclass.fr
firstclass.sg
firstclass.ne.jp
firstclass.capital
firstclass.com.mx
firstclass.se
firstclass.rentals
firstclass.com.pl
firstclass.tel
firstclass.lt
firstclass.is
firstclass.in.th
firstclass.co.kr
firstclass.expert
firstclass.org
firstclass.at
firstclass.com.tr
firstclass.fo
firstclass.info
firstclass.it
firstclass.flights
firstclass.ws
firstclass.eu
firstclass.nl
firstclass.domains
firstclass.com.au
firstclass.mx
firstclass.sc
firstclass.no
firstclass.pl
firstclass.com
firstclass.com.cn
firstclass.as

Similar names

classfirst.com
firtsclass.com
classfirst.in
calstrsifs.com

DNS History

10 records (6 active, 4 former)

2017201820192020202120222023202420252026NSns.udag.dens.udag.netns.udag.orgns1.sedoparking.comns2.sedoparking.comMXmx00.udag.demx01.udag.delocalhostA89.31.143.9072.52.4.120
●NSns.udag.de2026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06
●NSns.udag.net2026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06
●NSns.udag.org2026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06
○NSns1.sedoparking.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 23:54:52
○ 2026-02-24 23:19:42
○ 2026-06-04 04:38:06
○NSns2.sedoparking.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 23:54:52
○ 2026-02-24 23:19:42
○ 2026-06-04 04:38:06
○MXlocalhost2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 23:54:52
○ 2026-02-24 23:19:42
○ 2026-06-04 04:38:06
●MXmx00.udag.de2026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06
●MXmx01.udag.de2026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06
○A72.52.4.1202016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 23:54:52
○ 2026-02-24 23:19:42
○ 2026-06-04 04:38:06
●A89.31.143.902026-02-24 → 2026-06-04 · 3 obs
○ 2016-12-10 23:54:52
● 2026-02-24 23:19:42
● 2026-06-04 04:38:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
expertv0n0.nic.expert, v0n1.nic.expert, v0n2.nic.expert, v0n3.nic.expert...12 records
firstclass.expertns.udag.org, ns.udag.de, ns.udag.net-

✅ Authoritative Response

Server:217.160.80.253

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstclass.expert (unsigned zone)

⏱️ Timing

Total: 1142ms | Queries: -

📄 Records

TypeCountSample Data
A189.31.143.90
NS3ns.udag.net, ns.udag.org...
MX2mx00.udag.de (pri: 10), mx01.udag.de (pri: 20)
TXT1v=spf1 include:_smtp.udag.de ~all
SOA1ns.udag.de hostmaster.united-domains.de

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.expert, v0n1.nic.expert, v0n2.nic.expert...)

Analysis

IP Addresses

firstclass.expert resolves to one IP address: 89.31.143.90.

ai-cons.com, kopernikus.gmbh, watchdns.net and two other host names share IP numbers with firstclass.expert.

Name Servers

Three name servers are authoritative for firstclass.expert: ns.udag.de, ns.udag.net and ns.udag.org.

At least some of firstclass.expert's name servers are shared with other domains, for example deitmer.eu, temiaz.com, linagericke.de and two more.

ns.udag.de resolves to 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253. ns.udag.net resolves to 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253. ns.udag.org resolves to 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253. All three hostnames point to two IP numbers each.

Mail Servers

Mail for firstclass.expert is handled by two mail servers — mx00.udag.de and mx01.udag.de.

firstclass.expert uses an identical mail server configuration to several other domains — among them thinklab.info, tierhilfe-ohne-grenzen.org, wardhowell.net and two more.

Each of mx00.udag.de and mx01.udag.de has one IP address: mx00.udag.de uses 62.146.106.39 and mx01.udag.de uses 62.146.106.40.