`teacherreference.co.uk`

DNSSEC	⚠️ Not signed
A	138.12.4.176^{🇺🇸 AS32472138.12.0.0/17}
NS	`ns1.reedelsevier.com` ⭐
		A	138.12.4.5^{🇺🇸 AS32472138.12.0.0/17}
			PTR	`ns1.reedelsevier.com`
NS	`ns2.reedelsevier.com`
		A	198.176.82.98^{🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24}
NS	`ns3.reedelsevier.com`
		A	198.176.82.101^{🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24}
			PTR	`ns3.reedelsevier.com`
TXT	`v=spf1 -all`
SOA	`ns1.reedelsevier.com`hostmaster@lexisnexis.com serial=23

`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=1776034077

rank #167300 globally
rank #13133 in the tld
WOT: SAFE (74/100)

Same first word

teacherreference.com

teacherreference.co.uk

DNS History

4 records (4 active, 0 former)

●NSns1.reedelsevier.com2026-04-08 → 2026-04-12 · 2 obs

● 2026-04-08 23:08:50
● 2026-04-12 23:06:44

●NSns2.reedelsevier.com2026-04-08 → 2026-04-12 · 2 obs

● 2026-04-08 23:08:50
● 2026-04-12 23:06:44

●NSns3.reedelsevier.com2026-04-08 → 2026-04-12 · 2 obs

● 2026-04-08 23:08:50
● 2026-04-12 23:06:44

●A138.12.4.1762026-04-08 → 2026-04-12 · 2 obs

● 2026-04-08 23:08:50
● 2026-04-12 23:06:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	dns3.nic.uk, nsd.nic.uk, dns1.nic.uk, nsb.nic.uk...	-
teacherreference.co.uk	ns3.reedelsevier.com, ns2.reedelsevier.com, ns1.reedelsevier.com	-

✅ Authoritative Response

Server:198.176.82.98

NS records: ns3.reedelsevier.com, ns2.reedelsevier.com, ns1.reedelsevier.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 3557ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.12.4.176`
NS	3	`ns1.reedelsevier.com, ns3.reedelsevier.com...`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.reedelsevier.com hostmaster.lexisnex`

Analysis

IP Addresses

teacherreference.co.uk points to a single IP: 138.12.4.176.

Other host names, for instance lexisnexisclassaction.com, lawcentre.com.tw, clientdevelopment.com, lexusnexus.co.za and update-acurint.com share IP numbers with teacherreference.co.uk.

Name Servers

teacherreference.co.uk is delegated to three name servers: ns1.reedelsevier.com, ns2.reedelsevier.com and ns3.reedelsevier.com.

teacherreference.co.uk at least partially shares its name servers with other domains, for instance lexisnexisglobaloperations.org, juris-classeur.biz, ejog.org, lexisadance.com and lx-nx.info.

Host names with one IP number:

ns1.reedelsevier.com points to: 138.12.4.5.

ns2.reedelsevier.com points to: 198.176.82.98.

ns3.reedelsevier.com points to: 198.176.82.101.

teacherreference.co.uk - robtex.com