`mathexercise.com`

DNSSEC	⚠️ Not signed
A	130.211.162.62^{🇺🇸 Google130.211.128.0/18}
		PTR	`62.162.211.130.bc.googleusercontent.com`
NS	`ns0.nameservices.net` ⭐
		A	216.117.191.23^{🇺🇸 RoadRunner-CharterComm-ADVANCED_INTERNET_TECHNOLOGIES_INC216.117.128.0/18 RR-RC-CHTR-ADVANCED INTERNET TECHNOLOGIES, INC-Carolinas}
			PTR	`ns0.nameservices.net`
NS	`ns1.nameservices.net`
		A	216.117.131.52^{🇺🇸 RoadRunner-CharterComm-ADVANCED_INTERNET_TECHNOLOGIES_INC216.117.128.0/18 RR-RC-CHTR-ADVANCED INTERNET TECHNOLOGIES, INC-Carolinas}
			PTR	`rodremelin.com`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c19::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrp-in-f26.1e100.net`
		A	172.217.76.27^{🇺🇸 Google172.217.76.0/24}
			PTR	`yulhrp-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:4013:c1e::1b^{🇳🇱 Google2a00:1450:4013::/48}
			PTR	`yugrqzs-in-f27.1e100.net`
		A	192.178.213.27^{🇺🇸 Google192.178.213.0/24}
			PTR	`yugrqzs-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.27^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4003:c4a::1b^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulth-in-f27.1e100.net`
		A	142.251.96.26^{🇺🇸 Google142.250.0.0/15}
			PTR	`yutulth-in-f26.1e100.net`
SOA	`ns0.nameservices.net`ns1@nameservices.net 2017-01-18 #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=1774606047

Subdomains

mail.mathexercise.com

Same first word

mathexercise.com

DNS History

10 records (8 active, 2 former)

●NSns0.nameservices.net2015-06-23 → 2026-03-27 · 2 obs

● 2015-06-23 08:33:48
● 2026-03-27 10:22:46

●NSns1.nameservices.net2015-06-23 → 2026-03-27 · 2 obs

● 2015-06-23 08:33:48
● 2026-03-27 10:22:46

●MXalt1.aspmx.l.google.com2017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

●MXalt2.aspmx.l.google.com2017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

●MXalt3.aspmx.l.google.com2017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

●MXalt4.aspmx.l.google.com2017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

●MXaspmx.l.google.com2017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

○MXmail.mathexercise.com2015-06-23 → 2016-04-23 · 4 obs

● 2015-06-23 08:33:48
● 2016-04-23 19:20:48
○ 2017-02-03 14:25:24
○ 2026-03-27 10:22:46

●A130.211.162.622017-02-03 → 2026-03-27 · 3 obs

○ 2016-04-23 19:20:48
● 2017-02-03 14:25:24
● 2026-03-27 10:22:46

○A50.56.172.2042015-06-23 → 2016-04-23 · 4 obs

● 2015-06-23 08:33:48
● 2016-04-23 19:20:48
○ 2017-02-03 14:25:24
○ 2026-03-27 10:22:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
mathexercise.com	ns1.nameservices.net, ns0.nameservices.net	-

✅ Authoritative Response

Server:216.117.131.52

NS records: ns1.nameservices.net, ns0.nameservices.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathexercise.com (unsigned zone)

⏱️ Timing

Total: 419ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`130.211.162.62`
NS	2	`ns0.nameservices.net, ns1.nameservices.net`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
SOA	1	`ns0.nameservices.net ns1.nameservices.ne`

Analysis

Hierarchy

The parent of mail.mathexercise.com is mathexercise.com.

IP Addresses

mathexercise.com points to a single IP: 130.211.162.62.

Other host names, for instance innovationdock.com, 62.162.211.130.bc.googleusercontent.com and mail.mathexercise.com share IP numbers with mathexercise.com.

Name Servers

Two name servers ns0.nameservices.net and ns1.nameservices.net handle delegation for mathexercise.com.

mathexercise.com uses the same name server setup as other domains, for example actanova.com, frenehard.org, logicalynx.com, little-sin.net and wgsp.net.