`croftgroupuk.com`

DNSSEC	⚠️ Not signed
A	212.23.5.205^{🇬🇧 ZEN-AS212.23.0.0/19 Zen Internet Ltd}
		PTR	`cp01.hosting.zen.net.uk`
NS	`ns0.zen.co.uk` ⭐
		A	2a02:8010:7:1::53^{🇬🇧 ZEN-AS2a02:8010::/29 Zen Internet Ltd}
			PTR	`ns0.zen.co.uk`
		A	212.23.8.1^{🇬🇧 ZEN-AS212.23.0.0/19 Zen Internet Ltd}
			PTR	`ns0.zen.co.uk`
NS	`ns1.zen.co.uk`
		A	2a02:8010:2:8::53^{🇬🇧 ZEN-AS2a02:8010::/29 Zen Internet Ltd}
			PTR	`ns1.zen.co.uk`
		A	212.23.3.1^{🇬🇧 ZEN-AS212.23.0.0/19 Zen Internet Ltd}
			PTR	`ns1.zen.co.uk`
MX	`croftgroupuk-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::2^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo0p265cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00601.inbound.protection.outlook.com`
		A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.99.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00600.inbound.protection.outlook.com`
		A	52.101.99.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00502.inbound.protection.outlook.com`
TXT	`MS=ms71029038`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns0.zen.co.uk`netman@zen.co.uk 2019-02-26 #63

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783161336

Subdomains

mail.croftgroupuk.com

Same first word

croftgroupuk.com

DNS History

9 records (4 active, 5 former)

○NSns.hosteurope.com2015-05-28 → 2017-11-08 · 4 obs

● 2015-05-28 01:17:22
● 2017-11-08 20:24:42
○ 2026-07-01 21:46:14
○ 2026-07-04 11:00:30

●NSns0.zen.co.uk2026-07-01 → 2026-07-04 · 3 obs

○ 2017-11-08 20:24:42
● 2026-07-01 21:46:14
● 2026-07-04 11:00:30

●NSns1.zen.co.uk2026-07-01 → 2026-07-04 · 3 obs

○ 2017-11-08 20:24:42
● 2026-07-01 21:46:14
● 2026-07-04 11:00:30

○NSns2.hosteurope.com2015-05-28 → 2017-11-08 · 4 obs

● 2015-05-28 01:17:22
● 2017-11-08 20:24:42
○ 2026-07-01 21:46:14
○ 2026-07-04 11:00:30

●MXcroftgroupuk-com.mail.protection.outlook.com2026-07-01 → 2026-07-04 · 3 obs

○ 2017-11-08 20:24:42
● 2026-07-01 21:46:14
● 2026-07-04 11:00:30

○MXmail.croftgroupuk.com2015-05-28 → 2017-11-08 · 4 obs

● 2015-05-28 01:17:22
● 2017-11-08 20:24:42
○ 2026-07-01 21:46:14
○ 2026-07-04 11:00:30

●A212.23.5.2052026-07-01 → 2026-07-04 · 3 obs

○ 2017-11-08 20:24:42
● 2026-07-01 21:46:14
● 2026-07-04 11:00:30

○A81.21.76.622015-05-28 → 2016-12-31 · 4 obs

● 2015-05-28 01:17:22
● 2016-12-31 07:22:06
○ 2017-11-08 20:24:42
○ 2026-07-04 11:00:30

○A94.136.40.512017-11-08 → 2017-11-08 · 4 obs

○ 2016-12-31 07:22:06
● 2017-11-08 20:24:42
○ 2026-07-01 21:46:14
○ 2026-07-04 11:00:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
croftgroupuk.com	ns0.zen.co.uk, ns1.zen.co.uk	-

✅ Authoritative Response

Server:212.23.3.1

NS records: ns0.zen.co.uk, ns1.zen.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for croftgroupuk.com (unsigned zone)

⏱️ Timing

Total: 462ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.23.5.205`
NS	2	`ns0.zen.co.uk, ns1.zen.co.uk`
MX	1	`croftgroupuk-com.mail.protection.outlook`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms71029038`
SOA	1	`ns0.zen.co.uk netman.zen.co.uk`

Analysis

Hierarchy

The domain mail.croftgroupuk.com falls under the parent croftgroupuk.com.

IP Addresses

croftgroupuk.com points to a single IP number: 212.23.5.205.

Additional host names — totztogz.com, nethraa.com, epc1.co.uk and two others — share IP numbers with croftgroupuk.com.

Name Servers

croftgroupuk.com is delegated to two name servers: ns0.zen.co.uk and ns1.zen.co.uk.

croftgroupuk.com shares its name server setup with other domains, including bymt.org.uk, spectaclemakers.com, presspahn.com and two others.

croftgroupuk.com shares at least some of its name servers with other domains, such as clwydrefridgeration.com.

ns0.zen.co.uk and ns1.zen.co.uk each resolve to two IP addresses: ns0.zen.co.uk points to 212.23.8.1 and 2a02:8010:7:1::53, while ns1.zen.co.uk points to 212.23.3.1 and 2a02:8010:2:8::53.

Mail Servers

croftgroupuk.com has one mail server: croftgroupuk-com.mail.protection.outlook.com.

croftgroupuk-com.mail.protection.outlook.com points to 8 IP numbers: 52.101.89.0, 52.101.89.1, 52.101.99.0 and 5 other.

croftgroupuk.com - robtex.com