mathteach.net - dns.ninja

`mathteach.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:d8f9^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:3ded^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.61.237^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.216.249^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carl.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carl.ns.cloudflare.com`
		A	108.162.193.106^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	172.64.33.106^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	173.245.59.106^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
NS	`robin.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ada^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`robin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`robin.ns.cloudflare.com`
		A	108.162.192.218^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	172.64.32.218^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
		A	173.245.58.218^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`robin.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁴⁴⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁵⁷⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.61.237, 172.67.216.249
		IPv6 hints	2606:4700:3036::ac43:d8f9, 2606:4700:3037::6815:3ded
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOA	`carl.ns.cloudflare.com`dns@cloudflare.com serial=2410771189

`net`

	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=1785420187

Same first word

mathteach.sg

mathteach.net

Similar names

mathatech.com

metahatch.com

heatmatch.org

teachmath.com

DNS History

34 records (9 active, 25 former)

●NScarl.ns.cloudflare.com2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○NSdns1.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○NSdns2.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○NSns09.domaincontrol.com2016-01-25 → 2016-01-25 · 4 obs

○ 2015-11-03 12:21:14
● 2016-01-25 05:50:52
○ 2016-04-14 23:38:24
○ 2026-07-30 14:13:10

○NSns1.51dns.com2015-05-23 → 2015-11-03 · 4 obs

● 2015-05-23 06:01:58
● 2015-11-03 12:21:14
○ 2016-01-25 05:50:52
○ 2026-07-30 14:13:10

○NSns1.linode.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○NSns10.domaincontrol.com2016-01-25 → 2016-01-25 · 4 obs

○ 2015-11-03 12:21:14
● 2016-01-25 05:50:52
○ 2016-04-14 23:38:24
○ 2026-07-30 14:13:10

○NSns2.51dns.com2015-05-23 → 2015-11-03 · 4 obs

● 2015-05-23 06:01:58
● 2015-11-03 12:21:14
○ 2016-01-25 05:50:52
○ 2026-07-30 14:13:10

○NSns2.linode.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○NSns3.linode.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○NSns4.linode.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○NSns5.linode.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

●NSrobin.ns.cloudflare.com2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○MXeforward1.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○MXeforward2.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○MXeforward3.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○MXeforward4.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○MXeforward5.registrar-servers.com2018-10-13 → 2018-10-13 · 4 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
○ 2026-02-16 15:58:28
○ 2026-07-30 14:13:10

○MXmailstore1.secureserver.net2016-01-25 → 2016-01-25 · 3 obs

● 2016-01-25 05:50:52
○ 2016-04-14 23:38:24
○ 2026-07-30 14:13:10

○MXmx1.privateemail.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○MXmx2.privateemail.com2026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

●MXroute1.mx.cloudflare.net2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

●MXroute2.mx.cloudflare.net2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

●MXroute3.mx.cloudflare.net2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○MXsmtp.secureserver.net2016-01-25 → 2016-01-25 · 3 obs

● 2016-01-25 05:50:52
○ 2016-04-14 23:38:24
○ 2026-07-30 14:13:10

●A104.21.61.2372026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○A107.183.11.2382015-11-03 → 2015-11-03 · 3 obs

● 2015-11-03 12:21:14
○ 2016-01-25 05:50:52
○ 2026-07-30 14:13:10

○A139.162.138.672018-10-13 → 2026-02-16 · 5 obs

○ 2016-04-14 23:38:24
● 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

●A172.67.216.2492026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○A2606:4700:3030::ac43:d8f92026-06-11 → 2026-06-14 · 5 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-06-14 10:21:20
○ 2026-06-25 17:50:38
○ 2026-07-30 14:13:10

●A2606:4700:3036::ac43:d8f92026-06-25 → 2026-07-30 · 3 obs

○ 2026-06-14 10:21:20
● 2026-06-25 17:50:38
● 2026-07-30 14:13:10

●A2606:4700:3037::6815:3ded2026-06-11 → 2026-07-30 · 3 obs

○ 2026-02-16 15:58:28
● 2026-06-11 15:20:36
● 2026-07-30 14:13:10

○A2a01:7e01::f03c:91ff:fecf:65412026-02-16 → 2026-02-16 · 4 obs

○ 2018-10-13 15:49:54
● 2026-02-16 15:58:28
○ 2026-06-11 15:20:36
○ 2026-07-30 14:13:10

○A50.63.202.502016-01-25 → 2016-01-25 · 4 obs

○ 2015-11-03 12:21:14
● 2016-01-25 05:50:52
○ 2016-04-14 23:38:24
○ 2026-07-30 14:13:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	e.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net...	-
mathteach.net	carl.ns.cloudflare.com, robin.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.218

NS records: carl.ns.cloudflare.com, robin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathteach.net (unsigned zone)

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.216.249, 104.21.61.237`
AAAA	2	`2606:4700:3037::6815:3ded, 2606:4700:3036::ac43:d8f9`
NS	2	`carl.ns.cloudflare.com, robin.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 30), route2.mx.cloudflare.net (pri: 44)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carl.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

mathteach.net directs to four IP numbers, which are 104.21.61.237, 172.67.216.249, 2606:4700:3036::ac43:d8f9 and 2606:4700:3037::6815:3ded.

test.groupalia.it, dksrv.com, sinogael.eu and two other host names share IP numbers with mathteach.net.

Name Servers

mathteach.net uses two name servers for its delegation: carl.ns.cloudflare.com and robin.ns.cloudflare.com.

mathteach.net uses the same name servers as several other domains — among them mldns.net, mapsnbags.com, medaliontours.com and two more.

The name servers of mathteach.net overlap at least partially with those of other domains — among them mushroomslook.com, turkeyre.com, zlibraryk.ru and two more.

These name servers commonly appear in combination with the name servers adi.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname carl.ns.cloudflare.com directs to 108.162.193.106, 172.64.33.106 and 173.245.59.106 along with 3 other IP addresses.

Hostname robin.ns.cloudflare.com directs to 108.162.192.218, 172.64.32.218 and 173.245.58.218 along with 3 other IP addresses.

Mail Servers

Mail for mathteach.net is routed through three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

mathteach.net has at least partial mail server overlap with other domains such as tokorush.com, ukcasinosmobile.com, securinx.com and two more.

Hostnames that resolve to 6 IP addresses:

Hostname route1.mx.cloudflare.net directs to 162.159.205.11, 162.159.205.12 and 162.159.205.13 along with 3 other IP addresses.

Hostname route2.mx.cloudflare.net directs to 162.159.205.17, 162.159.205.18 and 162.159.205.19 along with 3 other IP addresses.

Hostname route3.mx.cloudflare.net directs to 162.159.205.23, 162.159.205.24 and 162.159.205.25 along with 3 other IP addresses.