mail.techdu.com - dns.ninja

`mail.techdu.com`

DNSSEC

⚠️ Not signed

`techdu.com`

	DNSSEC	⚠️ Not signed
	A	52.20.84.62^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
	NS	`ns1.atom.com` ⭐
	NS	`ns2.atom.com`
	SOA	`ns1.atom.com`hostmaster@techdu.com 2026-07-07 #3

Previously MX for

techdu.com

Same first word

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DNS History

2 records (0 active, 2 former)

○A104.219.248.182015-06-24 → 2015-11-09 · 4 obs

● 2015-06-24 18:17:48
● 2015-11-09 07:46:22
○ 2016-02-06 00:05:22
○ 2026-08-12 03:35:12

○A65.254.248.1482016-02-06 → 2016-06-24 · 5 obs

○ 2015-11-09 07:46:22
● 2016-02-06 00:05:22
● 2016-06-24 19:35:10
○ 2026-05-06 17:50:22
○ 2026-08-12 03:35:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
techdu.com	ns1.atom.com, ns2.atom.com	2 records

✅ Authoritative Response

Server:44.219.81.145

NS records: ns1.atom.com, ns2.atom.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techdu.com (unsigned zone)

⏱️ Timing

Total: 3066ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.atom.com, ns2.atom.com)