github.org.uk - dns.ninja

`github.org.uk`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2d7b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d5e4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.45.123^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.213.228^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
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`
NS	`robin.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ada^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`robin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`robin.ns.cloudflare.com`
		A	108.162.192.218^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	172.64.32.218^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	173.245.58.218^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
MX	`github-org-uk.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::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00500.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=ms78871612`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.45.123, 172.67.213.228
		IPv6 hints	2606:4700:3031::6815:2d7b, 2606:4700:3035::ac43:d5e4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=251, name=cloudflare-ech.com
SOA	`dale.ns.cloudflare.com`dns@cloudflare.com serial=2407657174

`org.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=1785086987

rank #579105 globally
rank #31830 in the tld
WOT: SAFE (71/100)

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DNS History

9 records (7 active, 2 former)

●NSdale.ns.cloudflare.com2026-03-19 → 2026-07-26 · 2 obs

● 2026-03-19 06:11:32
● 2026-07-26 17:33:10

●NSrobin.ns.cloudflare.com2026-03-19 → 2026-07-26 · 2 obs

● 2026-03-19 06:11:32
● 2026-07-26 17:33:10

●MXgithub-org-uk.mail.protection.outlook.com2026-03-19 → 2026-07-26 · 2 obs

● 2026-03-19 06:11:32
● 2026-07-26 17:33:10

●A104.21.45.1232026-03-19 → 2026-07-26 · 2 obs

● 2026-03-19 06:11:32
● 2026-07-26 17:33:10

●A172.67.213.2282026-03-19 → 2026-07-26 · 2 obs

● 2026-03-19 06:11:32
● 2026-07-26 17:33:10

●A2606:4700:3031::6815:2d7b2026-07-09 → 2026-07-26 · 3 obs

○ 2026-03-19 06:11:32
● 2026-07-09 16:28:40
● 2026-07-26 17:33:10

○A2606:4700:3035::6815:2d7b2026-03-19 → 2026-03-19 · 3 obs

● 2026-03-19 06:11:32
○ 2026-07-09 16:28:40
○ 2026-07-26 17:33:10

●A2606:4700:3035::ac43:d5e42026-07-09 → 2026-07-26 · 3 obs

○ 2026-03-19 06:11:32
● 2026-07-09 16:28:40
● 2026-07-26 17:33:10

○A2606:4700:3036::ac43:d5e42026-03-19 → 2026-03-19 · 3 obs

● 2026-03-19 06:11:32
○ 2026-07-09 16:28:40
○ 2026-07-26 17:33:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk...	-
github.org.uk	dale.ns.cloudflare.com, robin.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.218

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for github.org.uk (unsigned zone)

⏱️ Timing

Total: 382ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.45.123, 172.67.213.228`
AAAA	2	`2606:4700:3035::ac43:d5e4, 2606:4700:3031::6815:2d7b`
NS	2	`dale.ns.cloudflare.com, robin.ns.cloudflare.com`
MX	1	`github-org-uk.mail.protection.outlook.co`
TXT	2	`MS=ms78871612, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dale.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

github.org.uk resolves to four IP addresses: 104.21.45.123, 172.67.213.228, 2606:4700:3031::6815:2d7b and 2606:4700:3035::ac43:d5e4.

elmolkyqhjfwn.online, pt.qwertyu.wiki, huoguang.freewaf.com and two other host names share IP numbers with github.org.uk.

Name Servers

The NS records for github.org.uk delegate to dale.ns.cloudflare.com and robin.ns.cloudflare.com.

github.org.uk uses the same name servers as several other domains — among them jc-electronics.com, biladnews.net, nomeassociates.com and two more.

github.org.uk partially shares its NS delegation with several other domains, including oobi.co.uk, 07bet.com, bookproposal.net and two others.

These name servers are regularly seen alongside chelsea.ns.cloudflare.com and becky.ns.cloudflare.com as name servers.

Hostnames that resolve to 6 IP addresses:

dale.ns.cloudflare.com maps to 108.162.193.95, 172.64.33.95, 173.245.59.95 and 3 additional IP addresses.

robin.ns.cloudflare.com maps to 108.162.192.218, 172.64.32.218, 173.245.58.218 and 3 additional IP addresses.

Mail Servers

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

github-org-uk.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.89.0, 52.101.89.1, 52.101.99.0 and 5 others.