mail.corestudy.com - dns.ninja

`mail.corestudy.com`

DNSSEC

⚠️ Not signed

`corestudy.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`
	TXT	`sedo`
	SOA	`ns1.atom.com`hostmaster@corestudy.com 2026-04-16 #1

Previously MX for

corestudy.com

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DNS History

6 records (0 active, 6 former)

○NScorestudy.com2015-11-13 → 2016-04-21 · 4 obs

● 2015-11-13 16:00:14
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

○NSns.cafe24.com2015-11-13 → 2016-04-21 · 4 obs

● 2015-11-13 16:00:14
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

○NSns0.cafe24.com2015-11-13 → 2016-04-21 · 4 obs

● 2015-11-13 16:00:14
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

○NSns1.cafe24.com2015-11-13 → 2016-04-21 · 4 obs

● 2015-11-13 16:00:14
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

○NSns2.cafe24.com2015-11-13 → 2016-04-21 · 4 obs

● 2015-11-13 16:00:14
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

○CNAMEcorestudy.com2015-07-09 → 2016-04-21 · 4 obs

● 2015-07-09 07:04:30
● 2016-04-21 21:34:52
○ 2026-05-12 12:49:56
○ 2026-06-24 10:49:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
corestudy.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 corestudy.com (unsigned zone)

⏱️ Timing

Total: 3033ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

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