`github-smtp2-ext1.iad.github.net`

DNSSEC

⚠️ Not signed

`iad.github.net`

	DNSSEC	⚠️ Not signed
	NS	`dns1.p03.nsone.net` ⭐
	NS	`dns2.p03.nsone.net`
	NS	`dns3.p03.nsone.net`
	NS	`dns4.p03.nsone.net`
	NS	`ns-1250.awsdns-28.org`
	NS	`ns-1584.awsdns-06.co.uk`
	NS	`ns-365.awsdns-45.com`
	NS	`ns-556.awsdns-05.net`
	SOA	`dns1.p03.nsone.net`hostmaster@nsone.net serial=1611586685

Previously MX for

noreply.github.com

DNS History

1 record (0 active, 1 former)

○A192.30.252.1922016-12-12 → 2016-12-12 · 3 obs

● 2016-12-12 09:10:52
○ 2019-12-15 00:37:30
○ 2026-05-02 15:36:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	l.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...	-
github.net	ns-114.awsdns-14.com, ns-988.awsdns-59.net, ns-1799.awsdns-32.co.uk, ns-1236.awsdns-26.org...	10 records

✅ Authoritative Response

Server:198.51.45.69

NS records: ns-114.awsdns-14.com, ns-988.awsdns-59.net, ns-1799.awsdns-32.co.uk, ns-1236.awsdns-26.org, dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net, dns4.p05.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for github.net (unsigned zone)

⏱️ Timing

Total: 463ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-988.awsdns-59.net, ns-988.awsdns-59.net, dns1.p05.nsone.net...)

github-smtp2-ext1.iad.github.net - robtex.com