`51teachers.com`

DNSSEC	⚠️ Not signed
A	52.20.84.62^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
		PTR	`ec2-52-20-84-62.compute-1.amazonaws.com`
NS	`ns1.atom.com` ⭐
		A	44.219.81.145^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-219-81-145.compute-1.amazonaws.com`
NS	`ns2.atom.com`
		A	50.19.240.86^{🇺🇸 Amazon50.19.128.0/17 EC2 IAD prefix}
			PTR	`ec2-50-19-240-86.compute-1.amazonaws.com`
SOA	`ns1.atom.com`hostmaster@51teachers.com 2025-06-18 #3

`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=1775082947

Same first word

51teachers.com

DNS History

5 records (3 active, 2 former)

○NSdns11.hichina.com2015-07-13 → 2015-11-24 · 4 obs

● 2015-07-13 16:12:14
● 2015-11-24 11:13:22
○ 2016-02-26 00:29:52
○ 2026-04-01 22:51:36

○NSdns12.hichina.com2015-07-13 → 2015-11-24 · 4 obs

● 2015-07-13 16:12:14
● 2015-11-24 11:13:22
○ 2016-02-26 00:29:52
○ 2026-04-01 22:51:36

●NSns1.atom.com2026-03-27 → 2026-04-01 · 3 obs

○ 2016-02-26 00:29:52
● 2026-03-27 21:34:18
● 2026-04-01 22:51:36

●NSns2.atom.com2026-03-27 → 2026-04-01 · 3 obs

○ 2016-02-26 00:29:52
● 2026-03-27 21:34:18
● 2026-04-01 22:51:36

●A52.20.84.622026-04-01 → 2026-04-01 · 2 obs

○ 2026-03-27 21:34:18
● 2026-04-01 22:51:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net...	-
51teachers.com	ns1.atom.com, ns2.atom.com	2 records

✅ Authoritative Response

Server:44.219.81.145

NS records: ns1.atom.com, ns2.atom.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51teachers.com (unsigned zone)

⏱️ Timing

Total: 3038ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`52.20.84.62`
NS	2	`ns1.atom.com, ns2.atom.com`
SOA	1	`ns1.atom.com hostmaster.51teachers.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.atom.com, ns2.atom.com)

Analysis

IP Addresses

51teachers.com points to a single IP number: 52.20.84.62.

other host names for instance ethereumdomains.com, flaircode.com, nuvaderm.com, bindease.com and spinale.com share IP numbers with 51teachers.com.

Name Servers

51teachers.com is delegated to two name servers: ns1.atom.com and ns2.atom.com.

51teachers.com shares the same name server setup as other domains, for example okayidea.com, socialadda.com, crispbyte.com, landnetwork.com and adeco.org.

51teachers.com partially shares name servers with other domains, for instance i-sel.com, rightnav.com and forexberg.com.

Host names with one IP number:

The host ns1.atom.com points to 44.219.81.145 and the host ns2.atom.com points to 50.19.240.86.

51teachers.com - robtex.com

51teachers.com

com