`mail.course-makers.com`

DNSSEC

⚠️ Not signed

`course-makers.com`

	DNSSEC	⚠️ Not signed
	A	103.169.142.0^{🇦🇺 CLOUDFLARESPECTRUM103.169.142.0/24 Canva Pty Ltd 110 Kippax Street}
	NS	`ns1.systemdns.com` ⭐
	NS	`ns2.systemdns.com`
	NS	`ns3.systemdns.com`
	SOA	`ns1.systemdns.com`hostmaster@systemdns.com serial=1753816107

Previously MX for

course-makers.com

Same first word

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mail.pink

mail.vg

mail.guide

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mail.info

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mail.eg

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DNS History

1 record (0 active, 1 former)

○A62.138.18.1042017-10-10 → 2017-10-10 · 2 obs

● 2017-10-10 20:36:52
○ 2026-03-24 19:16:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net...	-
course-makers.com	ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com	6 records

✅ Authoritative Response

Server:216.40.47.90

NS records: ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for course-makers.com (unsigned zone)

⏱️ Timing

Total: 167ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.systemdns.com, ns1.systemdns.com, ns2.systemdns.com...)

mail.course-makers.com - robtex.com