`03.co.uk`

DNSSEC	⚠️ Not signed
NS	`ns1.bdm.microsoftonline.com` ⭐
		A	2603:1061:0:700::d0^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
		A	13.107.236.208^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
NS	`ns2.bdm.microsoftonline.com`
		A	2620:1ec:8ec:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
		A	150.171.21.208^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
NS	`ns3.bdm.microsoftonline.com`
		A	2a01:111:4000:700::d0^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-208.azure-dns.org`
		A	204.14.183.208^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-208.azure-dns.org`
NS	`ns4.bdm.microsoftonline.com`
		A	2620:1ec:bda:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
		A	208.84.5.208^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
MX	`03-co-uk.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::4^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::9^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
TXT	`mscid=/rQci9k1Q2IlHs2/nby6h6lIGr6jXvxP1DuhwYBniqsefrPi66Hlt7Oh8l9GSTDMuLnypWl...`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`godaddyverification=LQmV2OHGPmu2xK0N2QhSFA==`
SOA	`ns1.bdm.microsoftonline.com`azuredns-hostmaster@microsoft.com serial=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=1784821005

rank #119079 globally
rank #3326 in the tld
WOT: SAFE (74/100)

Same first word

03.cm

03.nl

03.ph

03.org

03.co.nz

03.to

03.net

03.eu

03.de

03.la

03.pl

03.su

03.blogspot.com

03.dk

03.app

03.run

03.wtf

03.ks.ua

03.se

03.gold

03.ca

03.ag

03.com.ua

03.chat

03.biz

03.by

03.wf

03.sb

03.am

03.world

03.uz

03.network

03.kz

03.co

03.al

03.ro

03.is

03.hu

03.fi

03.lc

03.no

03.be

03.lt

03.com

03.vip

03.cz

03.tv

03.cloud

03.yoga

03.cl

03.co.uk

03.ms

03.hk

03.at

03.fr

03.design

03.org.ua

03.org.cn

03.ru

03.dn.ua

03.plus

03.cn

03.cc

Similar names

30.hu

30.com.my

30.st

30.ai

30.gs

30.nl

30.la

30.io

30.pl

30.net

30.tel

30.vg

30.biz

30.co.kr

30.world

30.com.cn

30.co

30.email

30.is

30.org.cn

30.com.au

30.school

30.cm

30.chat

30.su

30.se

30.be

30.gg

30.cn

30.fi

30.no

30.style

30.mk

30.com.tw

30.lv

30.kz

30.ro

30.sk

30.ventures

30.am

30.amsterdam

30.dk

30.plus

30.eu

30.dn.ua

30.wtf

30.cc

30.com.hk

DNS History

12 records (5 active, 7 former)

●NSns1.bdm.microsoftonline.com2019-12-21 → 2026-07-23 · 3 obs

○ 2016-11-28 16:28:30
● 2019-12-21 06:39:46
● 2026-07-23 15:58:36

○NSns1.dsredirection.com2015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

●NSns2.bdm.microsoftonline.com2019-12-21 → 2026-07-23 · 3 obs

○ 2016-11-28 16:28:30
● 2019-12-21 06:39:46
● 2026-07-23 15:58:36

○NSns2.dsredirection.com2015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

●NSns3.bdm.microsoftonline.com2019-12-21 → 2026-07-23 · 3 obs

○ 2016-11-28 16:28:30
● 2019-12-21 06:39:46
● 2026-07-23 15:58:36

●NSns4.bdm.microsoftonline.com2019-12-21 → 2026-07-23 · 3 obs

○ 2016-11-28 16:28:30
● 2019-12-21 06:39:46
● 2026-07-23 15:58:36

●MX03-co-uk.mail.protection.outlook.com2019-12-21 → 2026-07-23 · 2 obs

● 2019-12-21 06:39:46
● 2026-07-23 15:58:36

○A208.73.210.2062015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

○A208.73.211.1672015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

○A208.73.211.1792015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

○A208.73.211.2322015-07-21 → 2016-11-28 · 4 obs

● 2015-07-21 22:15:12
● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

○PTRns1.dsredirection.com2016-11-28 → 2016-11-28 · 3 obs

● 2016-11-28 16:28:30
○ 2019-12-21 06:39:46
○ 2026-07-23 15:58:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk...	-
03.co.uk	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com	-

✅ Authoritative Response

Server:150.171.21.208

NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 03.co.uk (unsigned zone)

⏱️ Timing

Total: 469ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...`
MX	1	`03-co-uk.mail.protection.outlook.com (pr`
TXT	3	`mscid=/rQci9k1Q2IlHs2/nby6h6lIGr6jXvxP1D, v=spf1 include:spf.protection.outlook.co...`
SOA	1	`ns1.bdm.microsoftonline.com azuredns-hos`

Analysis

Name Servers

The authoritative name servers for 03.co.uk are ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

03.co.uk has at least partial name server overlap with other domains, such as cosstl.com, pavlov.sk, cleanerfi.com and two others.

ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com all point to exactly two IP numbers each: ns1.bdm.microsoftonline.com → 13.107.236.208 and 2603:1061:0:700::d0; ns2.bdm.microsoftonline.com → 150.171.21.208 and 2620:1ec:8ec:700::d0; ns3.bdm.microsoftonline.com → 204.14.183.208 and 2a01:111:4000:700::d0; ns4.bdm.microsoftonline.com → 208.84.5.208 and 2620:1ec:bda:700::d0.

Mail Servers

Mail for 03.co.uk is handled by a single mail server, 03-co-uk.mail.protection.outlook.com.

03-co-uk.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.3, 52.101.68.29, 52.101.73.11 and 5 others.

03.co.uk - robtex.com

03.co.uk

co.uk

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

Mail Servers

`03.co.uk`

`co.uk`