`crystallearning.co.uk`

DNSSEC	⚠️ Not signed
A	13.248.213.45^{🇺🇸 Amazon13.248.208.0/20}
		PTR	`a67c48129651a0940.awsglobalaccelerator.com`
A	76.223.67.189^{🇺🇸 Amazon76.223.64.0/20}
NS	`ns75.domaincontrol.com` ⭐
		A	2603:5:21b4::30^{🇺🇸 GODADDY-DNS2603:5:21b0::/44}
			PTR	`ns75.domaincontrol.com`
		A	97.74.107.48^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns75.domaincontrol.com`
NS	`ns76.domaincontrol.com`
		A	2603:5:22b4::30^{🇺🇸 GODADDY-DNS2603:5:22b0::/44}
			PTR	`ns76.domaincontrol.com`
		A	173.201.75.48^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns76.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
TXT	`v=spf1 include:secureserver.net -all`
SOA	`ns75.domaincontrol.com`dns@jomax.net 2025-12-09 #1

`co.uk`

	DNSSEC	⚠️ Not signed
	NS	`dns1.nic.uk` ⭐ ⚠️ Not in parent delegation
	NS	`dns2.nic.uk` ⚠️ Not in parent delegation
	NS	`dns3.nic.uk` ⚠️ Not in parent delegation
	NS	`dns4.nic.uk` ⚠️ Not in parent delegation
	NS	`nsa.nic.uk` ⚠️ Not in parent delegation
	NS	`nsb.nic.uk` ⚠️ Not in parent delegation
	NS	`nsc.nic.uk` ⚠️ Not in parent delegation
	NS	`nsd.nic.uk` ⚠️ Not in parent delegation
	SOA	`dns1.nic.uk`hostmaster@nominet.org.uk serial=1778728592

rank #166852 globally
rank #12374 in the tld
WOT: SAFE (74/100)

Same first word

crystallearning.co.uk

crystallearning.com.sg

DNS History

11 records (6 active, 5 former)

○NSns.hosteurope.com2015-06-19 → 2017-03-14 · 4 obs

● 2015-06-19 00:20:22
● 2017-03-14 18:46:50
○ 2026-03-26 21:11:30
○ 2026-05-14 03:34:20

○NSns2.hosteurope.com2015-06-19 → 2017-03-14 · 4 obs

● 2015-06-19 00:20:22
● 2017-03-14 18:46:50
○ 2026-03-26 21:11:30
○ 2026-05-14 03:34:20

●NSns75.domaincontrol.com2026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

●NSns76.domaincontrol.com2026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

●MXmailstore1.secureserver.net2026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

○MXmx0.123-reg.co.uk2015-06-19 → 2017-03-14 · 4 obs

● 2015-06-19 00:20:22
● 2017-03-14 18:46:50
○ 2026-03-26 21:11:30
○ 2026-05-14 03:34:20

○MXmx1.123-reg.co.uk2015-06-19 → 2017-03-14 · 4 obs

● 2015-06-19 00:20:22
● 2017-03-14 18:46:50
○ 2026-03-26 21:11:30
○ 2026-05-14 03:34:20

●MXsmtp.secureserver.net2026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

●A13.248.213.452026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

●A76.223.67.1892026-03-26 → 2026-05-14 · 3 obs

○ 2017-03-14 18:46:50
● 2026-03-26 21:11:30
● 2026-05-14 03:34:20

○A94.136.40.1032015-06-19 → 2017-03-14 · 4 obs

● 2015-06-19 00:20:22
● 2017-03-14 18:46:50
○ 2026-03-26 21:11:30
○ 2026-05-14 03:34:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk...	-
crystallearning.co.uk	ns75.domaincontrol.com, ns76.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.107.48

NS records: ns75.domaincontrol.com, ns76.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crystallearning.co.uk (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.67.189, 13.248.213.45`
NS	2	`ns75.domaincontrol.com, ns76.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
TXT	1	`v=spf1 include:secureserver.net -all`
SOA	1	`ns75.domaincontrol.com dns.jomax.net`

Analysis

IP Addresses

crystallearning.co.uk points to two IP numbers: 13.248.213.45 and 76.223.67.189.

Other host names, for instance staysd.com, gastricbandfrance.co.uk, conquestmusicgroup.com, venusgamenights.com and theroofrockers.com share IP numbers with crystallearning.co.uk.

Name Servers

Delegation for crystallearning.co.uk rests with two name servers, ns75.domaincontrol.com and ns76.domaincontrol.com.

crystallearning.co.uk shares the same name server setup as other domains, including kitchendadscooking.com, bigguylandscape.com, superstarbusinesssecrets.com, vaughnarchplanning.com and mitochondria.ca.

Host names with two IP numbers: ns75.domaincontrol.com points to 2603:5:21b4::30 and 97.74.107.48; ns76.domaincontrol.com points to 2603:5:22b4::30 and 173.201.75.48.

Mail Servers

crystallearning.co.uk is handled by two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.

crystallearning.co.uk uses the same mail server configuration as other domains, such as mogoz.com, atpjet.com, powerofpromos.com, network4good.org and bbqspits.com.

crystallearning.co.uk shares mail servers with other domains, at least partially, for instance deinenaschbox.de and grani.com.br.

Host names with three IP numbers: The host name mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162; The host name smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113.

crystallearning.co.uk - robtex.com