`mail.gchq-github.com`

	DNSSEC	⚠️ Not signed
	A	206.189.123.1^{🇬🇧 DIGITALOCEAN206.189.112.0/20 DigitalOcean}

`gchq-github.com`

	DNSSEC	🔒 Signed (DS record present)
	A	206.189.123.1^{🇬🇧 DIGITALOCEAN206.189.112.0/20 DigitalOcean}
	NS	`ns1.internettoday.nl` ⭐
	NS	`ns2.internettoday.com`
	NS	`ns3.internettoday.eu`
	MX	`mail.gchq-github.com` ⭐
	TXT	`v=spf1 a mx include:spamfilterserver.com ip4:87.236.102.45 ip6:2a02:cc8::102:...`
	SOA	`ns1.internettoday.nl`hostmaster@gchq-github.com 2025-12-19 #6

⚠️ On DNS blocklist: tif

MX for

gchq-github.com

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DNS History

1 record (1 active, 0 former)

●A206.189.123.12026-04-14 → 2026-04-15 · 2 obs

● 2026-04-14 19:46:06
● 2026-04-15 10:45:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
gchq-github.com	ns1.internettoday.nl, ns2.internettoday.com, ns3.internettoday.eu	2 records

✅ Authoritative Response

Server:37.48.115.145

NS records: ns1.internettoday.nl, ns2.internettoday.com, ns3.internettoday.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 929ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`206.189.123.1`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.internettoday.com, ns2.internettoday.com)

Analysis

Mail Server Role

mail.gchq-github.com serves as a mail server for gchq-github.com.

IP Addresses

mail.gchq-github.com resolves to one IP number: 206.189.123.1.

Other host names for instance gchq-github.com and androidposkenya.co.ke share IP numbers with mail.gchq-github.com.

mail.gchq-github.com - robtex.com