`mail.spacourse.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`

`spacourse.com`

	DNSSEC	⚠️ Not signed
	A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
	NS	`ns.buydomains.com` ⚠️ Not in zone NS records
	NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records

Same first word

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DNS History

6 records (1 active, 5 former)

○NSns1.bluehost.com2015-11-20 → 2016-06-19 · 3 obs

● 2015-11-20 13:09:54
● 2016-06-19 20:46:02
○ 2026-03-24 05:11:52

○NSns2.bluehost.com2015-11-20 → 2016-06-19 · 3 obs

● 2015-11-20 13:09:54
● 2016-06-19 20:46:02
○ 2026-03-24 05:11:52

○MXspacourse.com2015-11-20 → 2016-06-19 · 3 obs

● 2015-11-20 13:09:54
● 2016-06-19 20:46:02
○ 2026-03-24 05:11:52

●A207.148.248.1432026-03-24 → 2026-03-24 · 2 obs

○ 2016-06-19 20:46:02
● 2026-03-24 05:11:52

○A69.89.25.1592015-07-20 → 2016-06-19 · 3 obs

● 2015-07-20 20:54:02
● 2016-06-19 20:46:02
○ 2026-03-24 05:11:52

○CNAMEspacourse.com2015-07-20 → 2016-06-19 · 3 obs

● 2015-07-20 20:54:02
● 2016-06-19 20:46:02
○ 2026-03-24 05:11:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
spacourse.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.20.26.87

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for spacourse.com (unsigned zone)

⏱️ Timing

Total: 352ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

IP Addresses

mail.spacourse.com points to a single IP number: 207.148.248.143.

Other host names, for instance punart.com, alienbrew.com, alanzas.com, rusver.com and vocalpathways.com share IP numbers with mail.spacourse.com.

mail.spacourse.com - robtex.com