`classessment.com`

DNSSEC	⚠️ Not signed
A	2600:3c00::f03c:91ff:fe7d:1a46^{🇺🇸 AKAMAI-LINODE-AP2600:3c00::/32 Akamai Technologies}
A	96.126.121.70^{🇺🇸 AKAMAI-LINODE-AP96.126.112.0/20 Akamai Technologies}
NS	`ns1.linode.com` ⭐
		A	2600:14c0:6::2^{🇺🇸 Akamai2600:14c0:6::/48 Technologies}
			PTR	`c1-2.akashield.net`
		A	92.123.94.2^{🇳🇱 Akamai92.123.94.0/24 Technologies}
			PTR	`c1-2.akashield.net`
NS	`ns2.linode.com`
		A	2600:14c0:6::3^{🇺🇸 Akamai2600:14c0:6::/48 Technologies}
			PTR	`c1-3.akashield.net`
		A	92.123.94.3^{🇳🇱 Akamai92.123.94.0/24 Technologies}
			PTR	`c1-3.akashield.net`
NS	`ns3.linode.com`
		A	2600:14c0:7::3^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-3.akashield.net`
		A	92.123.95.3^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-3.akashield.net`
NS	`ns4.linode.com`
		A	2600:14c0:7::4^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-4.akashield.net`
		A	92.123.95.4^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-4.akashield.net`
NS	`ns5.linode.com`
		A	2600:14c0:7::2^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-2.akashield.net`
		A	92.123.95.2^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-2.akashield.net`
MX	`classessment.com` ⭐
		A	2600:3c00::f03c:91ff:fe7d:1a46^{🇺🇸 AKAMAI-LINODE-AP2600:3c00::/32 Akamai Technologies}
		A	96.126.121.70^{🇺🇸 AKAMAI-LINODE-AP96.126.112.0/20 Akamai Technologies}
			PTR	`li370-70.members.linode.com`
MX	`mail.classessment.com`⁽²⁰⁾
		A	2600:3c00::f03c:91ff:fe7d:1a46^{🇺🇸 AKAMAI-LINODE-AP2600:3c00::/32 Akamai Technologies}
		A	96.126.121.70^{🇺🇸 AKAMAI-LINODE-AP96.126.112.0/20 Akamai Technologies}
			PTR	`li370-70.members.linode.com`
TXT	`v=spf1 a ~all`
SOA	`ns1.linode.com`ldj@mechnerfoundation.org 2018-04-16 #4

`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=1774781577

MX for

classessment.com

Subdomains

mail.classessment.com

admin.classessment.com

Same first word

classessment.com

DNS History

15 records (9 active, 6 former)

○NSdns1.name-services.com2016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

○NSdns2.name-services.com2016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

○NSdns3.name-services.com2016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

○NSdns4.name-services.com2016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

○NSdns5.name-services.com2016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

●NSns1.linode.com2026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

●NSns2.linode.com2026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

●NSns3.linode.com2026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

●NSns4.linode.com2026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

●NSns5.linode.com2026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

●MXclassessment.com2016-12-17 → 2026-03-29 · 2 obs

● 2016-12-17 10:26:36
● 2026-03-29 11:19:46

●MXmail.classessment.com2016-12-17 → 2026-03-29 · 2 obs

● 2016-12-17 10:26:36
● 2026-03-29 11:19:46

●A2600:3c00::f03c:91ff:fe7d:1a462026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

○A45.33.72.632016-12-17 → 2017-10-03 · 4 obs

● 2016-12-17 10:26:36
● 2017-10-03 16:15:18
○ 2026-03-27 09:52:08
○ 2026-03-29 11:19:46

●A96.126.121.702026-03-27 → 2026-03-29 · 3 obs

○ 2017-10-03 16:15:18
● 2026-03-27 09:52:08
● 2026-03-29 11:19:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classessment.com	ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com...	10 records

✅ Authoritative Response

Server:92.123.95.3

NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classessment.com (unsigned zone)

⏱️ Timing

Total: 178ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`96.126.121.70`
AAAA	1	`2600:3c00::f03c:91ff:fe7d:1a46`
NS	5	`ns1.linode.com, ns3.linode.com...`
MX	2	`mail.classessment.com (pri: 20), classessment.com (pri: 10)`
TXT	1	`v=spf1 a ~all`
SOA	1	`ns1.linode.com ldj.mechnerfoundation.org`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns1.linode.com, ns1.linode.com, ns2.linode.com...)

Analysis

Hierarchy

classessment.com is a parent of mail.classessment.com and admin.classessment.com.

Mail Server Role

classessment.com serves as the mail server for classessment.com.

mail.classessment.com often functions as the mail server, commonly paired with classessment.com.

IP Addresses

classessment.com points to two IP numbers: 2600:3c00::f03c:91ff:fe7d:1a46 and 96.126.121.70.

Other host names such as mail.classessment.com, li370-70.members.linode.com and admin.classessment.com share IP numbers with classessment.com.

Name Servers

classessment.com is delegated to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com and ns5.linode.com.

At least part of the name servers for classessment.com are shared with other domains, for instance lincmad.com, o2group.net, lonniemartin.com, stickmud.org and singularity.ecms.io.

Host names with two IP numbers: ns1.linode.com points to 2600:14c0:6::2 and 92.123.94.2; ns2.linode.com points to 2600:14c0:6::3 and 92.123.94.3; ns3.linode.com points to 2600:14c0:7::3 and 92.123.95.3; ns4.linode.com points to 2600:14c0:7::4 and 92.123.95.4; ns5.linode.com points to 2600:14c0:7::2 and 92.123.95.2.

Mail Servers

classessment.com is served by two mail servers: classessment.com and mail.classessment.com.

Host names with two IP numbers:

classessment.com points to 2600:3c00::f03c:91ff:fe7d:1a46 and 96.126.121.70.

mail.classessment.com points to 2600:3c00::f03c:91ff:fe7d:1a46 and 96.126.121.70.

Names pointing to 2600:3c00::f03c:91ff:fe7d:1a46: classessment.com and mail.classessment.com.

Names pointing to 96.126.121.70: classessment.com and mail.classessment.com.

classessment.com - robtex.com