`corpuniversity.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`
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=1771291435

Subdomains

hostmaster.corpuniversity.com

DNS History

5 records (3 active, 2 former)

●NSns.buydomains.com2026-03-24 → 2026-03-24 · 1 obs

● 2026-03-24 12:13:30

●NSthis-domain-for-sale.com2026-03-24 → 2026-03-24 · 1 obs

● 2026-03-24 12:13:30

●A207.148.248.1432015-11-20 → 2026-03-24 · 3 obs

○ 2015-07-17 10:03:28
● 2015-11-20 17:09:28
● 2026-03-24 12:13:30

○A52.68.4.1752015-07-17 → 2015-07-17 · 3 obs

● 2015-07-17 10:03:28
○ 2018-09-10 05:31:18
○ 2026-03-24 12:13:30

○A66.151.181.492015-07-17 → 2015-07-17 · 3 obs

● 2015-07-17 10:03:28
○ 2015-11-20 17:09:28
○ 2026-03-24 12:13:30

🔍 DNS Trace

📋 Delegation Chain

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

⏱️ Timing

Total: 75ms | 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

Hierarchy

The parent of hostmaster.corpuniversity.com is corpuniversity.com.

IP Addresses

corpuniversity.com points to a single IP: 207.148.248.143.

Other host names, for instance mail.photographycambridge.com, hostmaster.oslnet.com, tsunamigraphics.com, lightplastics.com and mx.ellaphotos.com share IP numbers with corpuniversity.com.

Name Servers

Two name servers this-domain-for-sale.com and ns.buydomains.com handle delegation for corpuniversity.com.

corpuniversity.com uses the same name server setup as other domains, for example livingcharity.com, ultimatedialer.com, snakemovie.com, successfulsecrets.com and beatsave.com.

corpuniversity.com partially shares name servers with other domains, such as gipi.net and casperos.com.

Host names with one IP number

Host name this-domain-for-sale.com points to 52.20.26.87

Host name 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

corpuniversity.com - robtex.com