`extremeworks.co.uk`

DNSSEC	⚠️ Not signed
A	212.48.74.5
NS	`ns2.heartinternet.uk` ⭐
		A	79.170.43.3^{🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited}
			PTR	`ns2.mainnameserver.com`
NS	`ns.heartinternet.uk`
		A	79.170.40.2^{🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited}
			PTR	`ns1.mainnameserver.com`
MX	`mail.extremeworks.co.uk` ⭐
		A	212.48.74.5
TXT	`v=spf1 include:soverin.net include:secureserver.net exists:%{i}.mta.spf.exten...`
SOA	`ns.heartinternet.uk`hostmaster@mainnameserver.com 2025-10-22 #13

`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=1783669716

rank #125342 globally
rank #3073 in the tld
WOT: SAFE (74/100)

Subdomains

mail.extremeworks.co.uk

Same first word

extremeworks.se

extremeworks.co.uk

extremeworks.com.br

DNS History

8 records (4 active, 4 former)

●NSns.heartinternet.uk2026-04-07 → 2026-07-10 · 3 obs

○ 2020-01-05 04:22:24
● 2026-04-07 13:18:06
● 2026-07-10 07:51:42

○NSns.mainnameserver.com2015-08-01 → 2020-01-05 · 4 obs

● 2015-08-01 21:21:12
● 2020-01-05 04:22:24
○ 2026-04-07 13:18:06
○ 2026-07-10 07:51:42

●NSns2.heartinternet.uk2026-04-07 → 2026-07-10 · 3 obs

○ 2020-01-05 04:22:24
● 2026-04-07 13:18:06
● 2026-07-10 07:51:42

○NSns2.mainnameserver.com2015-08-01 → 2020-01-05 · 4 obs

● 2015-08-01 21:21:12
● 2020-01-05 04:22:24
○ 2026-04-07 13:18:06
○ 2026-07-10 07:51:42

●MXmail.extremeworks.co.uk2015-08-01 → 2026-07-10 · 2 obs

● 2015-08-01 21:21:12
● 2026-07-10 07:51:42

●A212.48.74.52026-04-07 → 2026-07-10 · 3 obs

○ 2020-01-05 04:22:24
● 2026-04-07 13:18:06
● 2026-07-10 07:51:42

○A212.48.74.892015-11-20 → 2020-01-05 · 5 obs

○ 2015-08-01 21:21:12
● 2015-11-20 08:29:24
● 2020-01-05 04:22:24
○ 2026-04-07 13:18:06
○ 2026-07-10 07:51:42

○A46.20.225.2252015-08-01 → 2015-08-01 · 3 obs

● 2015-08-01 21:21:12
○ 2015-11-20 08:29:24
○ 2026-07-10 07:51:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	dns2.nic.uk, dns1.nic.uk, nsa.nic.uk, dns4.nic.uk...	-
extremeworks.co.uk	ns.heartinternet.uk, ns2.heartinternet.uk	-

✅ Authoritative Response

Server:79.170.43.3

NS records: ns.heartinternet.uk, ns2.heartinternet.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 535ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.48.74.5`
NS	2	`ns.heartinternet.uk, ns2.heartinternet.uk`
MX	1	`mail.extremeworks.co.uk (pri: 10)`
TXT	1	`v=spf1 include:soverin.net include:secur`
SOA	1	`ns.heartinternet.uk hostmaster.mainnames`

Analysis

Hierarchy

extremeworks.co.uk is a parent domain of mail.extremeworks.co.uk.

IP Addresses

extremeworks.co.uk points to a single IP number: 212.48.74.5.

Host names such as mail.mescranleigh.co.uk and mail.extremeworks.co.uk share IP numbers with extremeworks.co.uk.

Name Servers

Two name servers handle the delegation for extremeworks.co.uk: ns2.heartinternet.uk and ns.heartinternet.uk.

extremeworks.co.uk shares its name server setup with other domains, including quartic-training.com, salestwin.com, granta-automation.co.uk and two others.

extremeworks.co.uk shares at least some of its name servers with other domains, including pbfs.co.uk, whickhamjewellers.co.uk, loftinsulation.org and two others.

These name servers are frequently paired with the name servers ns2.mainnameserver.com and ns1.mainnameserver.com.

ns2.heartinternet.uk and ns.heartinternet.uk each resolve to one IP number: ns2.heartinternet.uk points to 79.170.43.3 and ns.heartinternet.uk points to 79.170.40.2.

Mail Servers

extremeworks.co.uk has one mail server: mail.extremeworks.co.uk.

mail.extremeworks.co.uk carries a single IP number, which is 212.48.74.5.

extremeworks.co.uk - robtex.com