`headmasters.co.uk`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:d3f8^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:4329^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.67.41^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.248^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chelsea.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26b1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chelsea.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chelsea.ns.cloudflare.com`
		A	108.162.194.177^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	162.159.38.177^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	172.64.34.177^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
NS	`dale.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b5f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dale.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dale.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dale.ns.cloudflare.com`
		A	108.162.193.95^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dale.ns.cloudflare.com`
		A	172.64.33.95^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dale.ns.cloudflare.com`
		A	173.245.59.95^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dale.ns.cloudflare.com`
MX	`mail2.quickdns.co.uk` ⭐
		A	93.93.130.229^{🇬🇧 MYTHIC93.93.128.0/21 Mythic Beasts Primary Address block}
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.67.41, 172.67.211.248
		IPv6 hints	2606:4700:3031::ac43:d3f8, 2606:4700:3037::6815:4329
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`chelsea.ns.cloudflare.com`dns@cloudflare.com serial=2403120909

`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=1778461623

rank #168876 globally
rank #13901 in the tld
WOT: SAFE (74/100)

Same first word

headmasters.com.au

headmasters.salon

headmasters.co

headmasters.info

headmasters.net

headmasters.nl

headmasters.de

headmasters.edu

headmasters.eu

headmasters.com

headmasters.co.nz

headmasters.email

headmasters.co.uk

headmasters.org

Similar names

DNS History

18 records (7 active, 11 former)

●NSchelsea.ns.cloudflare.com2026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

●NSdale.ns.cloudflare.com2026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

○NSns1.fastpark.net2015-06-21 → 2015-06-21 · 3 obs

● 2015-06-21 06:06:20
○ 2015-11-03 11:21:30
○ 2026-05-11 01:28:40

○NSns1.parkingcrew.net2015-11-03 → 2020-04-01 · 5 obs

○ 2015-06-21 06:06:20
● 2015-11-03 11:21:30
● 2020-04-01 09:59:44
○ 2026-03-15 05:43:40
○ 2026-05-11 01:28:40

○NSns2.fastpark.net2015-06-21 → 2015-06-21 · 3 obs

● 2015-06-21 06:06:20
○ 2015-11-03 11:21:30
○ 2026-05-11 01:28:40

○NSns2.parkingcrew.net2015-11-03 → 2020-04-01 · 5 obs

○ 2015-06-21 06:06:20
● 2015-11-03 11:21:30
● 2020-04-01 09:59:44
○ 2026-03-15 05:43:40
○ 2026-05-11 01:28:40

○MXmail.h-email.net2015-11-03 → 2020-04-01 · 4 obs

● 2015-11-03 11:21:30
● 2020-04-01 09:59:44
○ 2026-03-15 05:43:40
○ 2026-05-11 01:28:40

●MXmail2.quickdns.co.uk2026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

●A104.21.67.412026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

●A172.67.211.2482026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

○A185.53.177.92015-11-03 → 2016-09-21 · 7 obs

○ 2015-06-21 06:06:20
● 2015-11-03 11:21:30
○ 2016-01-17 05:38:00
○ 2016-04-08 21:32:30
● 2016-09-21 16:58:52
○ 2017-04-10 12:44:40
○ 2026-05-11 01:28:40

○A185.53.178.72016-01-17 → 2016-01-17 · 4 obs

○ 2015-11-03 11:21:30
● 2016-01-17 05:38:00
○ 2016-04-08 21:32:30
○ 2026-05-11 01:28:40

○A185.53.178.82020-04-01 → 2020-04-01 · 4 obs

○ 2017-04-10 12:44:40
● 2020-04-01 09:59:44
○ 2026-03-15 05:43:40
○ 2026-05-11 01:28:40

○A185.53.179.82017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-21 16:58:52
● 2017-04-10 12:44:40
○ 2020-04-01 09:59:44
○ 2026-05-11 01:28:40

○A216.8.179.252015-06-21 → 2015-06-21 · 3 obs

● 2015-06-21 06:06:20
○ 2015-11-03 11:21:30
○ 2026-05-11 01:28:40

●A2606:4700:3031::ac43:d3f82026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

●A2606:4700:3037::6815:43292026-03-15 → 2026-05-11 · 3 obs

○ 2020-04-01 09:59:44
● 2026-03-15 05:43:40
● 2026-05-11 01:28:40

○A54.72.9.512016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-17 05:38:00
● 2016-04-08 21:32:30
○ 2016-09-21 16:58:52
○ 2026-05-11 01:28:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk...	-
headmasters.co.uk	dale.ns.cloudflare.com, chelsea.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.95

NS records: dale.ns.cloudflare.com, chelsea.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1201ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.211.248, 104.21.67.41`
AAAA	2	`2606:4700:3031::ac43:d3f8, 2606:4700:3037::6815:4329`
NS	2	`chelsea.ns.cloudflare.com, dale.ns.cloudflare.com`
MX	1	`mail2.quickdns.co.uk (pri: 10)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chelsea.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

headmasters.co.uk points to four IP numbers: 2606:4700:3031::ac43:d3f8, 2606:4700:3037::6815:4329, 104.21.67.41 and 172.67.211.248.

Other host names, for instance www.celtech.com, confirmation-id1700.com, auloginc1c1.top, kadinruteng.org and www.acd-studios.com share IP numbers with headmasters.co.uk.

Name Servers

headmasters.co.uk's delegation is to two name servers chelsea.ns.cloudflare.com and dale.ns.cloudflare.com.

headmasters.co.uk shares the same name server configuration as other domains, such as envirotech.co.uk, penda.co.uk, authentico.co.uk, renn.co.uk and conceptboard.co.uk.

headmasters.co.uk at least partially shares its name servers with other domains, for instance xx33vv.com, butuhapa.com, 8a4d2.com, hyswimly.com and mozarts.co.uk.

These name servers are commonly used with becky.ns.cloudflare.com, lilyana.ns.cloudflare.com and fattouche.ns.cloudflare.com.

Host names with six IP numbers:

chelsea.ns.cloudflare.com points to: 2606:4700:50::a29f:26b1, 2803:f800:50::6ca2:c2b1, 2a06:98c1:50::ac40:22b1, 108.162.194.177, 162.159.38.177 and 172.64.34.177.

dale.ns.cloudflare.com points to: 2606:4700:58::adf5:3b5f, 2803:f800:50::6ca2:c15f, 2a06:98c1:50::ac40:215f, 108.162.193.95, 172.64.33.95 and 173.245.59.95.

Mail Servers

headmasters.co.uk is served by a single mail server, mail2.quickdns.co.uk.

headmasters.co.uk uses the same mail server setup as other domains such as hibox.co.uk, aipro.co.uk, stenning.uk, montpelier.co.uk and quinceandmedlar.co.uk.

mail2.quickdns.co.uk points to IP number 93.93.130.229.

headmasters.co.uk - robtex.com