`in-1.smtp.github.com`

DNSSEC

⚠️ Not signed

`smtp.github.com`

	DNSSEC	⚠️ Not signed
	A	140.82.112.31^{🇺🇸 GITHUB140.82.112.0/24 GitHub}
	A	140.82.112.32^{🇺🇸 GITHUB140.82.112.0/24 GitHub}
	A	140.82.113.31^{🇺🇸 GITHUB140.82.113.0/24 GitHub}
	A	140.82.113.32^{🇺🇸 GITHUB140.82.113.0/24 GitHub}
	A	140.82.114.31^{🇺🇸 GITHUB140.82.114.0/24 GitHub}
	A	140.82.114.32^{🇺🇸 GITHUB140.82.114.0/24 GitHub}

WOT: SAFE (94/100)
WOT: SAFE (94/100)

Previously MX for

noreply.github.com

Same first word

in-1.de

in-1.ru

Similar names

ni-1.de

1-in.de

1-ni.com

1-in.com

DNS History

2 records (0 active, 2 former)

○A192.30.253.1702018-06-09 → 2019-12-03 · 4 obs

● 2018-06-09 00:10:56
● 2019-12-03 11:50:20
○ 2021-03-23 15:16:32
○ 2026-04-14 04:21:12

○CNAMEgithub.github.io2021-03-23 → 2021-10-22 · 4 obs

● 2021-03-23 15:16:32
● 2021-10-22 05:50:56
○ 2026-04-13 20:51:26
○ 2026-04-14 04:21:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
github.com	ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org...	1 record

✅ Authoritative Response

Server:205.251.198.171

NS records: ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org, dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for github.com (unsigned zone)

⏱️ Timing

Total: 301ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-421.awsdns-52.com)

in-1.smtp.github.com - robtex.com