`radiologycourses.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
NS	`ns.buydomains.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`
NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1777123241

WOT: SAFE (60/100)

Previously MX for

radiologycourses.com

Same first word

radiologycourses.com

radiologycourses.org

DNS History

13 records (3 active, 10 former)

●NSns.buydomains.com2026-03-01 → 2026-04-25 · 3 obs

○ 2017-12-27 07:02:50
● 2026-03-01 23:25:36
● 2026-04-25 13:42:12

○NSns0.dnsmadeeasy.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

○NSns1.dnsmadeeasy.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

○NSns1.netfirms.com2016-12-30 → 2017-12-27 · 5 obs

○ 2015-10-12 20:39:02
● 2016-12-30 03:43:56
● 2017-12-27 07:02:50
○ 2026-03-01 23:25:36
○ 2026-04-25 13:42:12

○NSns2.dnsmadeeasy.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

○NSns2.netfirms.com2016-12-30 → 2017-12-27 · 5 obs

○ 2015-10-12 20:39:02
● 2016-12-30 03:43:56
● 2017-12-27 07:02:50
○ 2026-03-01 23:25:36
○ 2026-04-25 13:42:12

○NSns3.dnsmadeeasy.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

○NSns4.dnsmadeeasy.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

●NSthis-domain-for-sale.com2026-03-01 → 2026-04-25 · 3 obs

○ 2017-12-27 07:02:50
● 2026-03-01 23:25:36
● 2026-04-25 13:42:12

○MXmx.radiologycourses.com2016-12-30 → 2017-12-27 · 5 obs

○ 2015-10-12 20:39:02
● 2016-12-30 03:43:56
● 2017-12-27 07:02:50
○ 2026-03-01 23:25:36
○ 2026-04-25 13:42:12

○MXradiologycourses.com2007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

●A207.148.248.1432026-03-01 → 2026-04-25 · 3 obs

○ 2015-10-12 20:39:02
● 2026-03-01 23:25:36
● 2026-04-25 13:42:12

○A64.5.215.502007-08-23 → 2007-08-23 · 3 obs

● 2007-08-23 03:46:10
○ 2015-10-12 20:39:02
○ 2026-04-25 13:42:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
radiologycourses.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 radiologycourses.com (unsigned zone)

⏱️ Timing

Total: 110ms | 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

radiologycourses.com points to a single IP number: 207.148.248.143.

other host names for instance freedance.net, copyingsystem.com, corporacionhorizonte.com, awardseries.com and reelhub.com share IP numbers with radiologycourses.com.

Name Servers

radiologycourses.com is delegated to two name servers: this-domain-for-sale.com and ns.buydomains.com.

radiologycourses.com shares the same name server setup as other domains, for example zoolot.com, empate.com, ideenmanager.com, marooned.net and selectyes.com.

radiologycourses.com at least partially shares name servers with other domains, for example commercialre.info and certifydirect.com.

Host names with a single IP number:

this-domain-for-sale.com points to 52.20.26.87 and ns.buydomains.com points to 52.20.26.87.

Host names that point to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com.

radiologycourses.com - robtex.com