classcourse.com - dns.ninja

`classcourse.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=1780650384

Same first word

classcourse.com

Similar names

csulacrosse.com

aclscourses.net

classsource.com

aclscourses.com

sourceclass.com

aclscourses.info

DNS History

5 records (3 active, 2 former)

●NSns.buydomains.com2015-08-18 → 2026-06-05 · 2 obs

● 2015-08-18 05:53:46
● 2026-06-05 09:36:32

●NSthis-domain-for-sale.com2026-02-19 → 2026-06-05 · 3 obs

○ 2015-08-18 05:53:46
● 2026-02-19 20:54:42
● 2026-06-05 09:36:32

○A141.8.225.1242015-12-07 → 2016-08-08 · 5 obs

○ 2015-08-18 05:53:46
● 2015-12-07 15:57:38
● 2016-08-08 22:06:44
○ 2017-05-23 21:26:04
○ 2026-06-05 09:36:32

●A207.148.248.1432017-05-23 → 2026-06-05 · 3 obs

○ 2016-08-08 22:06:44
● 2017-05-23 21:26:04
● 2026-06-05 09:36:32

○A50.63.202.1042015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 05:53:46
○ 2015-12-07 15:57:38
○ 2026-06-05 09:36:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
classcourse.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.4.207.204

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classcourse.com (unsigned zone)

⏱️ Timing

Total: 3108ms | 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

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

Additional host names — playsetc.com, acordius.com, mvd.www.languagedoctors.com and two others — share IP numbers with classcourse.com.

Name Servers

The NS records for classcourse.com delegate to this-domain-for-sale.com and ns.buydomains.com.

classcourse.com shares its name server setup with other domains, including halokids.com, advear.com, organizationfirst.com and two others.

classcourse.com and other domains like createmyday.com share at least a portion of their name servers.

Each of this-domain-for-sale.com and ns.buydomains.com points to exactly one IP address: 52.20.26.87.

this-domain-for-sale.com and ns.buydomains.com each have 52.20.26.87 IP addresses.