`tutorialclassroom.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

www.tutorialclassroom.com

Same first word

tutorialclassroom.com

DNS History

6 records (3 active, 3 former)

●NSns.buydomains.com2026-02-17 → 2026-03-24 · 3 obs

○ 2015-10-23 22:40:58
● 2026-02-17 01:55:52
● 2026-03-24 01:44:14

○NSns1.newyork-hotels-resorts.com2008-03-11 → 2008-03-11 · 3 obs

● 2008-03-11 10:53:50
○ 2015-10-23 22:40:58
○ 2026-03-24 01:44:14

○NSns2.newyork-hotels-resorts.com2008-03-11 → 2008-03-11 · 3 obs

● 2008-03-11 10:53:50
○ 2015-10-23 22:40:58
○ 2026-03-24 01:44:14

●NSthis-domain-for-sale.com2026-02-17 → 2026-03-24 · 3 obs

○ 2015-10-23 22:40:58
● 2026-02-17 01:55:52
● 2026-03-24 01:44:14

●A207.148.248.1432026-02-17 → 2026-03-24 · 3 obs

○ 2015-10-23 22:40:58
● 2026-02-17 01:55:52
● 2026-03-24 01:44:14

○A38.97.225.1352008-03-11 → 2008-03-11 · 3 obs

● 2008-03-11 10:53:50
○ 2015-10-23 22:40:58
○ 2026-03-24 01:44:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net...	-
tutorialclassroom.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 tutorialclassroom.com (unsigned zone)

⏱️ Timing

Total: 2024ms | 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

tutorialclassroom.com is the parent of www.tutorialclassroom.com.

IP Addresses

tutorialclassroom.com resolves to a single IP: 207.148.248.143.

Other host names, for instance learndiscipline.com, wellnesscoupons.com, wvtitle.com, unlimitedconferences.com and propertyrisks.com share IP numbers with tutorialclassroom.com.

Name Servers

tutorialclassroom.com has two name servers: this-domain-for-sale.com and ns.buydomains.com.

tutorialclassroom.com shares the same name server setup as other domains, for example alevent.com, vibescreation.com, polishpoultry.com, elegantdetailing.com and theapostlepaul.com.

tutorialclassroom.com shares some name servers with other domains, for instance ndsl.net, transparentwellness.com and medicsaesthetics.com.

These name servers are commonly used with the name servers ns2.buydomains.com.

Host names with one IP number:

this-domain-for-sale.com points to: 52.20.26.87

ns.buydomains.com points to: 52.20.26.87

Names pointing to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com

tutorialclassroom.com - robtex.com