masterclass.co - robtex.com

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masterclass.co

DNSSEC⚠️ Not signed
A3.33.251.168🇺🇸 Amazon
PTRaec037177372cc6cd.awsglobalaccelerator.com
A15.197.225.128🇺🇸 Amazon
NSns15.domaincontrol.com ⭐
A2603:5:21b0::8🇺🇸 GODADDY-DNS-GLOBAL
PTRns15.domaincontrol.com
A97.74.107.8🇺🇸 GODADDY-DNS-GLOBAL
PTRns15.domaincontrol.com
NSns16.domaincontrol.com
A2603:5:22b0::8🇺🇸 GODADDY-DNS-GLOBAL
PTRns16.domaincontrol.com
A173.201.75.8🇺🇸 GODADDY-DNS-GLOBAL
PTRns16.domaincontrol.com
SOAns15.domaincontrol.comdns@jomax.net 2025-12-02 #4

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐ 🔒
NSa.registrydns.co 🔒
NSb.registrydns.co 🔒
NSc.registrydns.co 🔒
NSd.registrydns.co 🔒
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759585139

Up

www.masterclass.co

Same first word

masterclass.jp
masterclass.co.id
masterclass.dev
masterclass.agency
masterclass.world
masterclass.cc
masterclass.com
masterclass.net
masterclass.bg
masterclass.media
masterclass.today
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masterclass.pt
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masterclass.com.ua
masterclass.sydney
masterclass.ch
masterclass.cl
masterclass.am
masterclass.info
masterclass.site
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masterclass.be
masterclass.co.uk
masterclass.dk
masterclass.surgery
masterclass.courses
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masterclass.my
masterclass.ie
masterclass.ninja
masterclass.at
masterclass.com.hk
masterclass.de
masterclass.com.es
masterclass.com.mx
masterclass.az
masterclass.ng
masterclass.co.za
masterclass.lt
masterclass.us
masterclass.pl
masterclass.biz
masterclass.com.br
masterclass.hu
masterclass.eu
masterclass.edu.ge
masterclass.no
masterclass.team
masterclass.digital
masterclass.io
masterclass.al
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masterclass.com.tr
masterclass.gr
masterclass.ca
masterclass.lv
masterclass.care
masterclass.kg

Similar names

classmaster.net
classmaster.co.uk
esmartclass.net
smartscales.ru
classstream.online
classmaster.ca
esmartclass.com
scarletmass.com
classmaster.eu
classmaster.com
classstream.com
classmaster.cz
classmaster.in
classmaster.ru

DNS History

14 records (4 active, 10 former)

20162017201820192020202120222023202420252026NSns15.domaincontrol.comns16.domaincontrol.combuy.internettraffic.comns1.monikerdns.netns1.uniregistrymarket.linkns2.monikerdns.netns2.uniregistrymarket.linkns3.monikerdns.netns4.monikerdns.netsell.internettraffic.comA15.197.225.1283.33.251.16869.172.201.15369.172.201.208
○NSbuy.internettraffic.com2016-03-19 → 2016-07-16 · 5 obs
○ 2015-12-15 11:46:00
● 2016-03-19 02:21:00
● 2016-07-16 16:29:06
○ 2016-11-27 03:27:50
○ 2026-02-15 16:06:52
○NSns1.monikerdns.net2015-08-23 → 2015-12-15 · 4 obs
● 2015-08-23 13:46:20
● 2015-12-15 11:46:00
○ 2016-03-19 02:21:00
○ 2026-02-15 16:06:52
○NSns1.uniregistrymarket.link2016-11-27 → 2017-07-05 · 5 obs
○ 2016-07-16 16:29:06
● 2016-11-27 03:27:50
● 2017-07-05 23:02:14
○ 2026-02-15 04:53:06
○ 2026-02-15 16:06:52
●NSns15.domaincontrol.com2026-02-15 → 2026-02-15 · 3 obs
○ 2017-07-05 23:02:14
● 2026-02-15 04:53:06
● 2026-02-15 16:06:52
●NSns16.domaincontrol.com2026-02-15 → 2026-02-15 · 3 obs
○ 2017-07-05 23:02:14
● 2026-02-15 04:53:06
● 2026-02-15 16:06:52
○NSns2.monikerdns.net2015-08-23 → 2015-12-15 · 4 obs
● 2015-08-23 13:46:20
● 2015-12-15 11:46:00
○ 2016-03-19 02:21:00
○ 2026-02-15 16:06:52
○NSns2.uniregistrymarket.link2016-11-27 → 2017-07-05 · 5 obs
○ 2016-07-16 16:29:06
● 2016-11-27 03:27:50
● 2017-07-05 23:02:14
○ 2026-02-15 04:53:06
○ 2026-02-15 16:06:52
○NSns3.monikerdns.net2015-08-23 → 2015-12-15 · 4 obs
● 2015-08-23 13:46:20
● 2015-12-15 11:46:00
○ 2016-03-19 02:21:00
○ 2026-02-15 16:06:52
○NSns4.monikerdns.net2015-08-23 → 2015-12-15 · 4 obs
● 2015-08-23 13:46:20
● 2015-12-15 11:46:00
○ 2016-03-19 02:21:00
○ 2026-02-15 16:06:52
○NSsell.internettraffic.com2016-03-19 → 2016-07-16 · 5 obs
○ 2015-12-15 11:46:00
● 2016-03-19 02:21:00
● 2016-07-16 16:29:06
○ 2016-11-27 03:27:50
○ 2026-02-15 16:06:52
●A15.197.225.1282026-02-15 → 2026-02-15 · 3 obs
○ 2017-07-05 23:02:14
● 2026-02-15 04:53:06
● 2026-02-15 16:06:52
●A3.33.251.1682026-02-15 → 2026-02-15 · 3 obs
○ 2017-07-05 23:02:14
● 2026-02-15 04:53:06
● 2026-02-15 16:06:52
○A69.172.201.1532016-07-16 → 2017-07-05 · 5 obs
○ 2016-03-19 02:21:00
● 2016-07-16 16:29:06
● 2017-07-05 23:02:14
○ 2026-02-15 04:53:06
○ 2026-02-15 16:06:52
○A69.172.201.2082016-03-19 → 2016-03-19 · 3 obs
● 2016-03-19 02:21:00
○ 2016-07-16 16:29:06
○ 2026-02-15 16:06:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
masterclass.cons16.domaincontrol.com, ns15.domaincontrol.com-

✅ Authoritative Response

Server: 97.74.107.8

NS records: ns16.domaincontrol.com, ns15.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterclass.co (unsigned zone)

⏱️ Timing

Total: 31ms | Queries: -

📄 Records

TypeCountSample Data
A215.197.225.128, 3.33.251.168
NS2ns15.domaincontrol.com, ns16.domaincontrol.com
SOA1ns15.domaincontrol.com dns.jomax.net

AI analysis

www.masterclass.co is a child of masterclass.co.

masterclass.co has two IP numbers: 3.33.251.168 and 15.197.225.128.

Other host names, for instance samosh.com, perkakas.org, casacrystals.com, covcathedral.net and payret.com share IP numbers with masterclass.co.

masterclass.co's delegation uses two name servers: ns15.domaincontrol.com and ns16.domaincontrol.com.

masterclass.co uses the same name server setup as other domains, such as mosquitofreeguaranteed.com, bettalion.com, areefcreation.com, blink-lashes.com and godbole.in.

Host names with two IPs:

ns15.domaincontrol.com points to 2603:5:21b0::8 and 97.74.107.8

ns16.domaincontrol.com points to 2603:5:22b0::8 and 173.201.75.8