`teachercheck.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:165d:d9b5:87c0:94e0^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:7107:667d:570b:171e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:36f4:3cd1:55dc:15^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.208.27.76^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-208-27-76.compute-1.amazonaws.com`
		A	13.222.185.86^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-222-185-86.compute-1.amazonaws.com`
NS	`ns2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:1dc6:2e82:f754:42f2^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:5fd0:44f5:517a:9aeb^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.89.122.29^{🇺🇸 Amazon54.89.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-89-122-29.compute-1.amazonaws.com`
		A	54.210.156.168^{🇺🇸 Amazon54.210.0.0/16 EC2 IAD VPC Address Range}
			PTR	`ec2-54-210-156-168.compute-1.amazonaws.com`
		A	100.30.180.112^{🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix}
			PTR	`ec2-100-30-180-112.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-03-23 #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=1771291435

Same first word

teachercheck.com

teachercheck.de

Similar names

cheatercheck.com

cheatchecker.com

DNS History

19 records (6 active, 13 former)

●NSns1.namebrightdns.com2015-06-16 → 2026-03-23 · 5 obs

● 2015-06-16 02:23:52
● 2016-01-27 15:53:48
○ 2016-04-27 11:04:24
● 2017-05-31 11:52:24
● 2026-03-23 23:12:26

●NSns2.namebrightdns.com2015-06-16 → 2026-03-23 · 5 obs

● 2015-06-16 02:23:52
● 2016-01-27 15:53:48
○ 2016-04-27 11:04:24
● 2017-05-31 11:52:24
● 2026-03-23 23:12:26

○NSnsg1.namebrightdns.com2016-04-27 → 2016-04-27 · 4 obs

○ 2016-01-27 15:53:48
● 2016-04-27 11:04:24
○ 2017-05-31 11:52:24
○ 2026-03-23 23:12:26

○NSnsg2.namebrightdns.com2016-04-27 → 2016-04-27 · 4 obs

○ 2016-01-27 15:53:48
● 2016-04-27 11:04:24
○ 2017-05-31 11:52:24
○ 2026-03-23 23:12:26

○MXanmail.namebrightmail.com2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 02:23:52
○ 2015-11-01 06:26:42
○ 2026-03-23 23:12:26

○MXmail1.namebrightmail.com2017-05-31 → 2017-05-31 · 4 obs

○ 2015-11-01 06:26:42
● 2017-05-31 11:52:24
○ 2026-02-28 00:20:36
○ 2026-03-23 23:12:26

○MXmail2.namebrightmail.com2017-05-31 → 2017-05-31 · 4 obs

○ 2015-11-01 06:26:42
● 2017-05-31 11:52:24
○ 2026-02-28 00:20:36
○ 2026-03-23 23:12:26

●A13.223.25.842026-02-28 → 2026-03-23 · 3 obs

○ 2017-05-31 11:52:24
● 2026-02-28 00:20:36
● 2026-03-23 23:12:26

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-02-28 → 2026-03-23 · 3 obs

○ 2017-05-31 11:52:24
● 2026-02-28 00:20:36
● 2026-03-23 23:12:26

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-02-28 → 2026-03-23 · 3 obs

○ 2017-05-31 11:52:24
● 2026-02-28 00:20:36
● 2026-03-23 23:12:26

○A52.200.243.1232016-04-27 → 2016-04-27 · 4 obs

○ 2016-01-27 15:53:48
● 2016-04-27 11:04:24
○ 2017-05-31 11:52:24
○ 2026-03-23 23:12:26

○A54.152.144.2432016-04-27 → 2016-04-27 · 4 obs

○ 2016-01-27 15:53:48
● 2016-04-27 11:04:24
○ 2017-05-31 11:52:24
○ 2026-03-23 23:12:26

○A54.174.31.2542015-06-16 → 2015-11-01 · 4 obs

● 2015-06-16 02:23:52
● 2015-11-01 06:26:42
○ 2016-01-27 15:53:48
○ 2026-03-23 23:12:26

○A54.208.74.2152015-06-16 → 2015-11-01 · 4 obs

● 2015-06-16 02:23:52
● 2015-11-01 06:26:42
○ 2016-01-27 15:53:48
○ 2026-03-23 23:12:26

○A54.209.90.812016-01-27 → 2016-01-27 · 4 obs

○ 2015-11-01 06:26:42
● 2016-01-27 15:53:48
○ 2016-04-27 11:04:24
○ 2026-03-23 23:12:26

●A54.243.117.1972026-02-28 → 2026-03-23 · 3 obs

○ 2017-05-31 11:52:24
● 2026-02-28 00:20:36
● 2026-03-23 23:12:26

○A54.85.54.292016-01-27 → 2016-01-27 · 4 obs

○ 2015-11-01 06:26:42
● 2016-01-27 15:53:48
○ 2016-04-27 11:04:24
○ 2026-03-23 23:12:26

○CNAMEcomingsoon.namebright.com2017-05-31 → 2017-05-31 · 4 obs

○ 2016-04-27 11:04:24
● 2017-05-31 11:52:24
○ 2026-02-28 00:20:36
○ 2026-03-23 23:12:26

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-06-16 → 2016-04-27 · 4 obs

● 2015-06-16 02:23:52
● 2016-04-27 11:04:24
○ 2017-05-31 11:52:24
○ 2026-03-23 23:12:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
teachercheck.com	ns1.namebrightdns.com, ns2.namebrightdns.com	10 records

✅ Authoritative Response

Server:52.91.47.137

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachercheck.com (unsigned zone)

⏱️ Timing

Total: 115ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.223.25.84, 54.243.117.197`
AAAA	2	`2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee`
NS	2	`ns2.namebrightdns.com, ns1.namebrightdns.com`
TXT	2	`afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns1.namebrightdns.com, ns1.namebrightdns.com, ns1.namebrightdns.com...)

Analysis

IP Addresses

teachercheck.com maps to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

Other host names, for instance 8bua.com, ns1.hostjo.com, mail2.spicejoy.com, noblecrypto.com and freedomtwentyfive.com share IP numbers with teachercheck.com.

Name Servers

Two name servers ns1.namebrightdns.com and ns2.namebrightdns.com are delegated to teachercheck.com.

teachercheck.com uses the same name server configuration as other domains, such as mail.lioux.com, chari(0x74697473).com, oltri.com, mx.revivehealthcenter.com and kiemthe.forexstarmoon.com.

teachercheck.com at least partially shares name servers with other domains such as snapnu.com, jasnu.com, lolid.com, pubprestige.com and worldroster.com.

These name servers are commonly used with nsg1.namebrightdns.com, nsg2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with five IP numbers:

ns1.namebrightdns.com points to 2600:1f18:683a:ae1a:165d:d9b5:87c0:94e0, 2600:1f18:683a:ae1a:7107:667d:570b:171e, 2600:1f18:683a:ae1b:36f4:3cd1:55dc:15, 3.208.27.76 and 13.222.185.86; ns2.namebrightdns.com points to 2600:1f18:683a:ae1a:1dc6:2e82:f754:42f2, 2600:1f18:683a:ae1b:5fd0:44f5:517a:9aeb, 54.89.122.29, 54.210.156.168 and 100.30.180.112.

teachercheck.com - robtex.com