`mx.openedcourse.com`

DNSSEC

⚠️ Not signed

`openedcourse.com`

	DNSSEC	⚠️ Not signed
	NS	`ns1.dotster.com` ⭐
	NS	`ns2.dotster.com`
	MX	`mx.openedcourse.com` ⭐
	SOA	`ns1.dotster.com`dnsadmin@dotster.com 2012-08-30 #49

MX for

openedcourse.com

Same first word

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mx.s3-us-west-1.amazonaws.com

mx.gs

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xm.com.co

xm.africa

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xm.cz

xm.hk.cn

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xm.pl

xm.vn.ua

xm.house

xm.mk

xm.la

xm.com

DNS History

2 records (0 active, 2 former)

○A66.96.140.1022015-05-25 → 2016-03-20 · 4 obs

● 2015-05-25 07:18:24
● 2016-03-20 08:05:20
○ 2026-07-10 03:42:16
○ 2026-07-10 03:42:18

○A66.96.140.1032015-05-25 → 2016-03-20 · 4 obs

● 2015-05-25 07:18:24
● 2016-03-20 08:05:20
○ 2026-07-10 03:42:16
○ 2026-07-10 03:42:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
openedcourse.com	ns1.dotster.com, ns2.dotster.com	2 records

✅ Authoritative Response

Server:172.64.53.155

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openedcourse.com (unsigned zone)

⏱️ Timing

Total: 3274ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`66.96.140.102, 66.96.140.103`

📌 Glue Records Collected

Total: 2

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

mx.openedcourse.com - dns.ninja