21learn.com - dns.ninja

`21learn.com`

DNSSEC	⚠️ Not signed
A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
NS	`ns1.namebrightdns.com` ⭐
		A	2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:7bc2:638d:8ca6:fcc4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d57d:390a:64b4:d4f1^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	52.203.211.134^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-203-211-134.compute-1.amazonaws.com`
		A	52.204.81.90^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-204-81-90.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:4a5c:f736:fa58:d85^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:5b81:82bc:6de0:b02c^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:a80d:aa66:fb:1e18^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.88.240.25^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-88-240-25.compute-1.amazonaws.com`
		A	52.55.198.41^{🇺🇸 Amazon52.54.0.0/15 EC2 Region prefix}
			PTR	`ec2-52-55-198-41.compute-1.amazonaws.com`
		A	54.175.130.15^{🇺🇸 Amazon54.174.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-175-130-15.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:7b03:f4b:4bfa:8287^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:cc5d:cd19:dd5:828e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:3ee4:3218:624e:fbef^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.80.109.14^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-80-109-14.compute-1.amazonaws.com`
		A	18.232.139.44^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-232-139-44.compute-1.amazonaws.com`
		A	98.81.3.34^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-81-3-34.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-06-23 #1

`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=1782210260

Same first word

21learn.com

Similar names

12learn.com.cn

learn21.com

12learn.de

learn21.org

12learn.nl

12learn.com

learn21.co.kr

DNS History

20 records (7 active, 13 former)

○NSdns1.name-services.com2015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

○NSdns2.name-services.com2015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

○NSdns3.name-services.com2015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

○NSdns4.name-services.com2015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

○NSdns5.name-services.com2015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

●NSns1.namebrightdns.com2026-02-21 → 2026-06-23 · 3 obs

○ 2016-07-11 14:28:54
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

○NSns2.dnparking.com2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 21:59:18
○ 2015-06-02 03:56:46
○ 2026-06-23 10:40:56

○NSns3.dnparking.com2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 21:59:18
○ 2015-06-02 03:56:46
○ 2026-06-23 10:40:56

●NSnsg1.namebrightdns.com2026-02-21 → 2026-06-23 · 3 obs

○ 2016-07-11 14:28:54
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

●NSnsg2.namebrightdns.com2026-02-21 → 2026-06-23 · 3 obs

○ 2016-07-11 14:28:54
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

○MXp.nsm.ctmail.com2015-06-02 → 2016-03-15 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-03-15 00:23:52
○ 2016-07-11 14:28:54
○ 2026-06-23 10:40:56

●A13.223.25.842026-02-21 → 2026-06-23 · 3 obs

○ 2016-10-07 13:46:34
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

○A222.191.251.1782008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 21:59:18
○ 2015-06-02 03:56:46
○ 2026-06-23 10:40:56

○A222.191.251.2462008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 21:59:18
○ 2015-06-02 03:56:46
○ 2026-06-23 10:40:56

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-02-21 → 2026-06-23 · 3 obs

○ 2016-10-07 13:46:34
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-02-21 → 2026-06-23 · 3 obs

○ 2016-10-07 13:46:34
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

○A47.88.33.672016-10-07 → 2016-10-07 · 4 obs

○ 2016-07-11 14:28:54
● 2016-10-07 13:46:34
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

●A54.243.117.1972026-02-21 → 2026-06-23 · 3 obs

○ 2016-10-07 13:46:34
● 2026-02-21 12:20:46
● 2026-06-23 10:40:56

○A8.5.1.492015-06-02 → 2016-07-11 · 5 obs

○ 2008-03-19 21:59:18
● 2015-06-02 03:56:46
● 2016-07-11 14:28:54
○ 2016-10-07 13:46:34
○ 2026-06-23 10:40:56

○CNAMEcs.ename.net2017-07-08 → 2017-07-08 · 3 obs

● 2017-07-08 16:05:08
○ 2026-02-21 12:20:46
○ 2026-06-23 10:40:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21learn.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	12 records

✅ Authoritative Response

Server:18.232.139.44

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21learn.com (unsigned zone)

⏱️ Timing

Total: 124ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`54.243.117.197, 13.223.25.84`
AAAA	2	`2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb`
NS	2	`nsg1.namebrightdns.com, nsg2.namebrightdns.com`
TXT	2	`afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

21learn.com directs to four IP numbers, which are 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.

Additional host names — planetjet.com, nullmx.toprepute.com, travelgyan.com and two others — share IP numbers with 21learn.com.

Name Servers

The authoritative name servers for 21learn.com are ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com — three in total.

At least some of 21learn.com's name servers are shared with other domains, for example ns4.itwala.com, 5d84.5d84.lulu7.com, repheat.com and two more.

It is common for these name servers to be used in conjunction with the name servers ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with 6 IP numbers:

Hostname nsg1.namebrightdns.com directs to 3.88.240.25, 52.55.198.41 and 54.175.130.15 along with 3 other IP addresses.

Hostname nsg2.namebrightdns.com directs to 3.80.109.14, 18.232.139.44 and 98.81.3.34 along with 3 other IP addresses.

Host names that resolve to five IP addresses:

ns1.namebrightdns.com points to 52.203.211.134, 52.204.81.90, 2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca and two other IP addresses.