`mathplacementexams.com`

DNSSEC	⚠️ Not signed
A	2600:3c06::f03c:95ff:fe41:ed55^{🇺🇸 AKAMAI-LINODE-AP2600:3c06::/32 Akamai Technologies}
A	172.233.221.174^{🇺🇸 AKAMAI-LINODE-AP172.233.208.0/20 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`
SOA	`ns1.linode.com`jess\@brewster.wlc.edu serial=2021000013

`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

mathplacementexams.com

DNS History

7 records (7 active, 0 former)

●NSns1.linode.com2026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●NSns2.linode.com2026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●NSns3.linode.com2026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●NSns4.linode.com2026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●NSns5.linode.com2026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●A172.233.221.1742026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

●A2600:3c06::f03c:95ff:fe41:ed552026-02-19 → 2026-03-23 · 2 obs

● 2026-02-19 20:01:58
● 2026-03-23 15:33:08

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:92.123.94.2

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 mathplacementexams.com (unsigned zone)

⏱️ Timing

Total: 299ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`172.233.221.174`
AAAA	1	`2600:3c06::f03c:95ff:fe41:ed55`
NS	5	`ns4.linode.com, ns3.linode.com...`
SOA	1	`ns1.linode.com jess\.brewster.wlc.edu`

📌 Glue Records Collected

Total: 10

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

Analysis

IP Addresses

mathplacementexams.com has two IP numbers: 2600:3c06::f03c:95ff:fe41:ed55 and 172.233.221.174.

Name Servers

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

mathplacementexams.com at least partially shares name servers with other domains, including unquebecoisanewyork.com, headachefreehpc.com, blastify.space, adkalert.com and www.onthespotmotorcycles.com.

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.

mathplacementexams.com - robtex.com