courses.neustar - robtex.com

courses.neustar

DNSSEC⚠️ Not signed
A204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar
PTRcrs.ultradns.net
NSpdns196.ultradns.com ⭐
A2001:502:f3ff::e8🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRpdns196.ultradns.com
A156.154.64.196🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar
PTRpdns196.ultradns.com
NSpdns196.ultradns.biz
A2610:a1:1015::e8🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRpdns196.ultradns.biz
A156.154.66.196🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar
PTRpdns196.ultradns.biz
NSpdns196.ultradns.co.uk
A2610:a1:1017::e8🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar
PTRpdns196.ultradns.co.uk
A156.154.69.196🇺🇸 MAINT-ID-12008156.154.69.0/24 Neustar
PTRpdns196.ultradns.co.uk
NSpdns196.ultradns.info
A2610:a1:1016::e8🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar
PTRpdns196.ultradns.info
A156.154.68.196🇺🇸 MAINT-ID-12008156.154.68.0/24 Neustar
PTRpdns196.ultradns.info
NSpdns196.ultradns.net
A2610:a1:1014::e8🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRpdns196.ultradns.net
A156.154.65.196🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar
PTRpdns196.ultradns.net
NSpdns196.ultradns.org
A2001:502:4612::e8🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRpdns196.ultradns.org
A156.154.67.196🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar
PTRpdns196.ultradns.org
SOApdns196.ultradns.comkal\@feher.neustar.biz 2016-05-27 #3

neustar

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nic.neustar ⭐
NSa.nic.neustar
NSb.nic.neustar
NSc.nic.neustar
NSns4.dns.nic.neustar
NSns5.dns.nic.neustar
NSns6.dns.nic.neustar
SOAns1.dns.nic.neustaradmin@tldns.godaddy serial=1775965034

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DNS History

7 records (7 active, 0 former)

2017201820192020202120222023202420252026NSpdns196.ultradns.bizpdns196.ultradns.co.ukpdns196.ultradns.compdns196.ultradns.infopdns196.ultradns.netpdns196.ultradns.orgA204.74.99.100
●NSpdns196.ultradns.biz2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●NSpdns196.ultradns.co.uk2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●NSpdns196.ultradns.com2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●NSpdns196.ultradns.info2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●NSpdns196.ultradns.net2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●NSpdns196.ultradns.org2016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26
●A204.74.99.1002016-12-10 → 2026-04-12 · 2 obs
● 2016-12-10 04:46:20
● 2026-04-12 18:09:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neustara.nic.neustar, ns6.dns.nic.neustar, ns5.dns.nic.neustar, ns4.dns.nic.neustar...12 records
courses.neustarpdns196.ultradns.co.uk, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net...-

✅ Authoritative Response

Server:156.154.68.196

NS records: pdns196.ultradns.co.uk, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org, pdns196.ultradns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courses.neustar (unsigned zone)

⏱️ Timing

Total: 357ms | Queries: -

📄 Records

TypeCountSample Data
A1204.74.99.100
NS6pdns196.ultradns.co.uk, pdns196.ultradns.biz...
SOA1pdns196.ultradns.com kal\.feher.neustar.

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (ns6.dns.nic.neustar, ns5.dns.nic.neustar, ns4.dns.nic.neustar...)

Analysis

IP Addresses

courses.neustar resolves to a single IP: 204.74.99.100.

Other host names, for instance jelam.fastservice.com, varta-automotive.hu, wmanwithin.com, harleydavidson1.com and fisheraccess.com share IP numbers with courses.neustar.

Name Servers

courses.neustar is delegated to six name servers: pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.info, pdns196.ultradns.net, pdns196.ultradns.org and pdns196.ultradns.co.uk.

courses.neustar shares some name servers with other domains, for example v103.com, alt961.com, jamn945.com, 253.29.120.in-addr.arpa and 933litefm.com.

these name servers are often used with ns0121.secondary.cloudflare.com, ns0237.secondary.cloudflare.com, udns1.ultradns.net, udns2.ultradns.net, pdns1.ultradns.net, pdns5.ultradns.info, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.

Host names with two IP numbers:

pdns196.ultradns.biz ->2610:a1:1015::e8 and 156.154.66.196

pdns196.ultradns.com ->2001:502:f3ff::e8 and 156.154.64.196

pdns196.ultradns.info ->2610:a1:1016::e8 and 156.154.68.196

pdns196.ultradns.net ->2610:a1:1014::e8 and 156.154.65.196

pdns196.ultradns.org ->2001:502:4612::e8 and 156.154.67.196

pdns196.ultradns.co.uk ->2610:a1:1017::e8 and 156.154.69.196