githubmail.co - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`githubmail.co`

DNSSEC	⚠️ Not signed
A	142.93.80.97^{🇺🇸 DIGITALOCEAN142.93.80.0/20 DigitalOcean}
NS	`ns01.domaincontrol.com` ⭐
		A	2603:5:2140::1^{🇺🇸 GODADDY-DNS2603:5:2140::/44}
			PTR	`ns01.domaincontrol.com`
		A	97.74.100.1^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns01.domaincontrol.com`
NS	`ns02.domaincontrol.com`
		A	2603:5:2240::1^{🇺🇸 GODADDY-DNS2603:5:2240::/44}
			PTR	`ns02.domaincontrol.com`
		A	173.201.68.1^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns02.domaincontrol.com`
MX	`mx.sendgrid.net` ⭐
		A	3.17.120.38^{🇺🇸 Amazon3.16.0.0/14 EC2 CMH prefix}
			PTR	`ec2-3-17-120-38.us-east-2.compute.amazonaws.com`
		A	3.136.245.72^{🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix}
			PTR	`ec2-3-136-245-72.us-east-2.compute.amazonaws.com`
		A	13.216.54.185^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-216-54-185.compute-1.amazonaws.com`
		A	15.222.160.229^{🇨🇦 Amazon15.222.0.0/15 EC2 YUL prefix}
			PTR	`ec2-15-222-160-229.ca-central-1.compute.amazonaws.com`
		A	16.52.61.209^{🇺🇸 Amazon16.52.0.0/16 EC2 YUL prefix}
			PTR	`ec2-16-52-61-209.ca-central-1.compute.amazonaws.com`
		A	16.52.110.174^{🇺🇸 Amazon16.52.0.0/16 EC2 YUL prefix}
			PTR	`ec2-16-52-110-174.ca-central-1.compute.amazonaws.com`
		A	18.224.101.244^{🇺🇸 Amazon18.224.0.0/14 EC2 CMH prefix}
			PTR	`ec2-18-224-101-244.us-east-2.compute.amazonaws.com`
		A	34.198.67.24^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
			PTR	`ec2-34-198-67-24.compute-1.amazonaws.com`
		A	44.216.124.122^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-216-124-122.compute-1.amazonaws.com`
SOA	`ns01.domaincontrol.com`dns@jomax.net 2025-03-28 #1

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759770685

Same first word

githubmail.co

githubmail.app

githubmail.ph

githubmail.pages.dev

githubmail.workers.dev

Similar names

mailgithub.com

lihatbigmu.com

mghaiuitbl.workers.dev

Previous names

Next names

DNS History

4 records (4 active, 0 former)

●NSns01.domaincontrol.com2026-09-24 → 2026-10-01 · 2 obs

● 2026-09-24 11:34:56
● 2026-10-01 04:27:46

●NSns02.domaincontrol.com2026-09-24 → 2026-10-01 · 2 obs

● 2026-09-24 11:34:56
● 2026-10-01 04:27:46

●MXmx.sendgrid.net2026-09-24 → 2026-10-01 · 2 obs

● 2026-09-24 11:34:56
● 2026-10-01 04:27:46

●A142.93.80.972026-09-24 → 2026-10-01 · 2 obs

● 2026-09-24 11:34:56
● 2026-10-01 04:27:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, c.registrydns.co, b.registrydns.co, d.registrydns.co	-
githubmail.co	ns01.domaincontrol.com, ns02.domaincontrol.com	-

✅ Authoritative Response

Server:173.201.68.1

NS records: ns01.domaincontrol.com, ns02.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for githubmail.co (unsigned zone)

⏱️ Timing

Total: 780ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`142.93.80.97`
NS	2	`ns01.domaincontrol.com, ns02.domaincontrol.com`
MX	1	`mx.sendgrid.net (pri: 10)`
SOA	1	`ns01.domaincontrol.com dns.jomax.net`

Analysis

IP Addresses

githubmail.co resolves to just one IP address, 142.93.80.97.

Two other host names, along with m-gmail.org, amazonemail.org and cignaemails.com, also share IP numbers with githubmail.co.

Name Servers

githubmail.co has two authoritative name servers — ns01.domaincontrol.com and ns02.domaincontrol.com.

githubmail.co shares its NS records with other domains, for example agentive.co.uk, plainfieldrealtor.info, topdogtint.com and two others.

Both ns01.domaincontrol.com and ns02.domaincontrol.com have two IP addresses each. ns01.domaincontrol.com resolves to 97.74.100.1 and 2603:5:2140::1; ns02.domaincontrol.com resolves to 173.201.68.1 and 2603:5:2240::1.

Mail Servers

The sole mail server for githubmail.co is mx.sendgrid.net.

Among the domains sharing a mail server setup with githubmail.co are fronttrades.com, pizzeriaphonebox.at, aroma-romford.com and two others.

There is at least a partial MX overlap between githubmail.co and other domains, including fcamp.com.br, poolsss.com.au, werkenbijvolkerwessels.com and two others.

These mail servers tend to appear in combination with mail servers aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 6 others.

With 9 IP addresses total, mx.sendgrid.net resolves to 3.17.120.38, 3.136.245.72, 13.216.54.185 and 6 others.