21question.co.uk - robtex.com

21question.co.uk

DNSSEC⚠️ Not signed
NSns1.nbcuni.com ⚠️ Not in zone NS records
A2001:502:f3ff::31🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRns1.nbcuni.com
A156.154.64.31🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar
PTRns1.nbcuni.com
NSns2.nbcuni.com ⚠️ Not in zone NS records
A2610:a1:1014::31🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRns2.nbcuni.com
A156.154.65.31🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar
PTRns2.nbcuni.com
NSns3.nbcuni.com ⚠️ Not in zone NS records
A2610:a1:1015::31🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRns3.nbcuni.com
A156.154.66.31🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar
PTRns3.nbcuni.com
NSns4.nbcuni.com ⚠️ Not in zone NS records
A2001:502:4612::31🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRns4.nbcuni.com
A156.154.67.31🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar
PTRns4.nbcuni.com
NSns5.nbcuni.com ⚠️ Not in zone NS records
A2610:a1:1016::31🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar
PTRns5.nbcuni.com
A156.154.68.31🇺🇸 MAINT-ID-12008156.154.68.0/24 Neustar
PTRns5.nbcuni.com
NSns6.nbcuni.com ⚠️ Not in zone NS records
A2610:a1:1017::31🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar
PTRns6.nbcuni.com
A156.154.69.31🇺🇸 MAINT-ID-12008156.154.69.0/24 Neustar
PTRns6.nbcuni.com

co.uk

DNSSEC⚠️ Not signed
NSdns1.nic.uk ⭐ ⚠️ Not in parent delegation
NSdns2.nic.uk ⚠️ Not in parent delegation
NSdns3.nic.uk ⚠️ Not in parent delegation
NSdns4.nic.uk ⚠️ Not in parent delegation
NSnsa.nic.uk ⚠️ Not in parent delegation
NSnsb.nic.uk ⚠️ Not in parent delegation
NSnsc.nic.uk ⚠️ Not in parent delegation
NSnsd.nic.uk ⚠️ Not in parent delegation
SOAdns1.nic.ukhostmaster@nominet.org.uk serial=1776010462
rank #170626 globally
rank #13909 in the tld
WOT: SAFE (74/100)

Same first word

21question.co.uk
21question.com
21question.tv

DNS History

6 records (6 active, 0 former)

NSns1.nbcuni.comns2.nbcuni.comns3.nbcuni.comns4.nbcuni.comns5.nbcuni.comns6.nbcuni.com
●NSns1.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42
●NSns2.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42
●NSns3.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42
●NSns4.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42
●NSns5.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42
●NSns6.nbcuni.com2026-04-09 → 2026-04-12 · 2 obs
● 2026-04-09 02:43:02
● 2026-04-12 16:29:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
uknsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk...-
21question.co.ukns3.nbcuni.com, ns1.nbcuni.com, ns2.nbcuni.com, ns6.nbcuni.com...-

✅ Authoritative Response

Server:156.154.68.31

NS records: ns3.nbcuni.com, ns1.nbcuni.com, ns2.nbcuni.com, ns6.nbcuni.com, ns5.nbcuni.com, ns4.nbcuni.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21question.co.uk (unsigned zone)

⏱️ Timing

Total: 208ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

21question.co.uk is delegated to six name servers: ns1.nbcuni.com, ns2.nbcuni.com, ns3.nbcuni.com, ns4.nbcuni.com, ns5.nbcuni.com and ns6.nbcuni.com.

21question.co.uk at least partially shares name servers with other domains, for instance usnsports.de, nbcutvassetcenter.com, digerazzi.com, gabbysdollhouse-intl.com and ambulance-lefilm.ch.

these name servers are often used with the name servers pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns6.ultradns.co.uk, ns1.netbcp.com and ns2.netbcp.net.

Host names with two IP numbers: ns1.nbcuni.com points to 2001:502:f3ff::31 and 156.154.64.31; ns2.nbcuni.com points to 2610:a1:1014::31 and 156.154.65.31; ns3.nbcuni.com points to 2610:a1:1015::31 and 156.154.66.31; ns4.nbcuni.com points to 2001:502:4612::31 and 156.154.67.31; ns5.nbcuni.com points to 2610:a1:1016::31 and 156.154.68.31; ns6.nbcuni.com points to 2610:a1:1017::31 and 156.154.69.31.