🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`classrum.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:401d:c0e9:501a:ea95^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:b913:ba6c:3406:1ea4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.152.150.60^{🇺🇸 Amazon54.152.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-152-150-60.compute-1.amazonaws.com`
		A	54.209.0.198^{🇺🇸 Amazon54.208.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-209-0-198.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:a20e:d941:6738:e505^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:a24f:972b:9405:90a7^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:cdd7:bd29:1367:9b99^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d88:86a4:5add:be37^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	52.91.222.88^{🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix}
		A	54.224.179.246^{🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix}
		A	98.83.118.78^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-83-118-78.compute-1.amazonaws.com`
		A	98.88.70.171^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-88-70-171.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:868a:5b3a:2e33:788a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:24ab:9e2:6b69:527a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:a733:a943:353:c9e9^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:ae05:7278:b3b9:45e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	13.217.214.227^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-217-214-227.compute-1.amazonaws.com`
		A	34.229.19.142^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
		A	54.81.233.19^{🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix}
		A	54.175.195.127^{🇺🇸 Amazon54.174.0.0/15 EC2 IAD prefix}
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-10-26 #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=1793056186

Previously MX for

classrum.com

Same first word

classrum.es

classrum.com

Similar names

DNS History

20 records (7 active, 13 former)

○NSns1.above.com2017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 01:17:48
● 2017-06-28 10:17:30
○ 2026-10-19 15:22:46
○ 2026-10-26 23:39:58

○NSns1.hostmonster.com2008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 17:41:52
○ 2015-05-31 07:46:16
○ 2026-10-26 23:39:58

●NSns1.namebrightdns.com2026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

○NSns2.above.com2017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 01:17:48
● 2017-06-28 10:17:30
○ 2026-10-19 15:22:46
○ 2026-10-26 23:39:58

○NSns2.hostmonster.com2008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 17:41:52
○ 2015-05-31 07:46:16
○ 2026-10-26 23:39:58

○NSns27.rookdns.com2015-05-31 → 2016-09-18 · 5 obs

○ 2008-03-09 17:41:52
● 2015-05-31 07:46:16
● 2016-09-18 01:17:48
○ 2017-06-28 10:17:30
○ 2026-10-26 23:39:58

○NSns28.rookdns.com2015-05-31 → 2016-09-18 · 5 obs

○ 2008-03-09 17:41:52
● 2015-05-31 07:46:16
● 2016-09-18 01:17:48
○ 2017-06-28 10:17:30
○ 2026-10-26 23:39:58

●NSnsg1.namebrightdns.com2026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

●NSnsg2.namebrightdns.com2026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

○MXclassrum.com2008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 17:41:52
○ 2015-05-31 07:46:16
○ 2026-10-26 23:39:58

○MXmail.mxproc.com2015-05-31 → 2016-04-05 · 5 obs

○ 2008-03-09 17:41:52
● 2015-05-31 07:46:16
● 2016-04-05 07:29:26
○ 2016-09-18 01:17:48
○ 2026-10-26 23:39:58

○MXmx92.m1bp.com2017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 01:17:48
● 2017-06-28 10:17:30
○ 2026-10-19 15:22:46
○ 2026-10-26 23:39:58

○MXmx92.mb5p.com2017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 01:17:48
● 2017-06-28 10:17:30
○ 2026-10-19 15:22:46
○ 2026-10-26 23:39:58

○A103.224.212.1862017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 01:17:48
● 2017-06-28 10:17:30
○ 2026-10-19 15:22:46
○ 2026-10-26 23:39:58

●A13.223.25.842026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

○A141.8.224.1692015-05-31 → 2016-09-18 · 5 obs

○ 2008-03-09 17:41:52
● 2015-05-31 07:46:16
● 2016-09-18 01:17:48
○ 2017-06-28 10:17:30
○ 2026-10-26 23:39:58

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

●A54.243.117.1972026-10-19 → 2026-10-26 · 3 obs

○ 2017-06-28 10:17:30
● 2026-10-19 15:22:46
● 2026-10-26 23:39:58

○A74.220.207.862008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 17:41:52
○ 2015-05-31 07:46:16
○ 2026-10-26 23:39:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
classrum.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	16 records

✅ Authoritative Response

Server:52.91.222.88

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classrum.com (unsigned zone)

⏱️ Timing

Total: 781ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.223.25.84, 54.243.117.197`
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: 16

Out-of-bailiwick: 16 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

classrum.com resolves to four IP addresses: 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.

Name Servers

Three name servers are authoritative for classrum.com: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

Hosts with 8 IP addresses each:

nsg1.namebrightdns.com carries IP addresses 52.91.222.88, 54.224.179.246 and 98.83.118.78, with 5 other addresses beyond those.

nsg2.namebrightdns.com carries IP addresses 13.217.214.227, 34.229.19.142 and 54.81.233.19, with 5 other addresses beyond those.

Host names with four IP numbers:

The host name ns1.namebrightdns.com points to: 54.152.150.60, 54.209.0.198, 2600:1f18:683a:ae1a:401d:c0e9:501a:ea95 and 2600:1f18:683a:ae1a:b913:ba6c:3406:1ea4.

classrum.com - robtex.com

classrum.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`classrum.com`

`com`