`teachyourself.com`

DNSSEC	⚠️ Not signed
A	195.184.230.162^{🇬🇧 Hachette-UK195.184.230.0/24}
NS	`ns1.netnames.net` ⭐ 🔒
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`ns2.netnames.net`
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
NS	`ns5.netnames.net`
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`ns6.netnames.net`
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
MX	`de-smtp-inbound-1.mimecast.com` ⭐
		A	194.104.108.22^{🇩🇪 MIMECAST-DE194.104.108.0/23 -NET-1}
			PTR	`de-smtp-inbound-1.mimecast.com`
			PTR	`de-smtp-inbound-2.mimecast.com`
		A	194.104.110.22^{🇩🇪 MIMECAST-DE194.104.110.0/23 -NET-4}
			PTR	`de-smtp-inbound-1.mimecast.com`
			PTR	`de-smtp-inbound-2.mimecast.com`
MX	`de-smtp-inbound-2.mimecast.com` ⭐
		A	194.104.108.22^{🇩🇪 MIMECAST-DE194.104.108.0/23 -NET-1}
			PTR	`de-smtp-inbound-1.mimecast.com`
			PTR	`de-smtp-inbound-2.mimecast.com`
		A	194.104.110.22^{🇩🇪 MIMECAST-DE194.104.110.0/23 -NET-4}
			PTR	`de-smtp-inbound-1.mimecast.com`
			PTR	`de-smtp-inbound-2.mimecast.com`
TXT	`MS=ms36760314`
TXT	`_n2s3ndjr90agwxc50beo9k6hzstq7oe`
TXT	`dropbox-domain-verification=agkdgrqdaz87`
TXT	`v=spf1 include:mailcontrol.com include:mail.zendesk.com a:fmail.lagardere.fr ...`
SOA	`ns1.netnames.net`hostmaster@cscdns.net 2018-08-01 #29

`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

Subdomains

library.teachyourself.com

Same first word

teachyourself.com

teachyourself.herokuapp.com

DNS History

10 records (7 active, 3 former)

●NSns1.netnames.net2015-08-21 → 2026-03-08 · 2 obs

● 2015-08-21 02:15:54
● 2026-03-08 01:01:36

●NSns2.netnames.net2015-08-21 → 2026-03-08 · 2 obs

● 2015-08-21 02:15:54
● 2026-03-08 01:01:36

●NSns5.netnames.net2015-08-21 → 2026-03-08 · 2 obs

● 2015-08-21 02:15:54
● 2026-03-08 01:01:36

●NSns6.netnames.net2015-08-21 → 2026-03-08 · 2 obs

● 2015-08-21 02:15:54
● 2026-03-08 01:01:36

○MXcluster-e.mailcontrol.com2015-08-21 → 2017-05-08 · 4 obs

● 2015-08-21 02:15:54
● 2017-05-08 06:48:28
○ 2026-03-01 19:56:36
○ 2026-03-08 01:01:36

○MXcluster-j.mailcontrol.com2015-08-21 → 2017-05-08 · 4 obs

● 2015-08-21 02:15:54
● 2017-05-08 06:48:28
○ 2026-03-01 19:56:36
○ 2026-03-08 01:01:36

●MXde-smtp-inbound-1.mimecast.com2026-03-01 → 2026-03-08 · 3 obs

○ 2017-05-08 06:48:28
● 2026-03-01 19:56:36
● 2026-03-08 01:01:36

●MXde-smtp-inbound-2.mimecast.com2026-03-01 → 2026-03-08 · 3 obs

○ 2017-05-08 06:48:28
● 2026-03-01 19:56:36
● 2026-03-08 01:01:36

○A185.26.230.1292015-08-21 → 2017-05-08 · 4 obs

● 2015-08-21 02:15:54
● 2017-05-08 06:48:28
○ 2026-03-01 19:56:36
○ 2026-03-08 01:01:36

●A195.184.230.1622026-03-01 → 2026-03-08 · 3 obs

○ 2017-05-08 06:48:28
● 2026-03-01 19:56:36
● 2026-03-08 01:01:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
teachyourself.com	ns2.netnames.net, ns1.netnames.net, ns5.netnames.net, ns6.netnames.net	-

✅ Authoritative Response

Server: 156.154.131.100

NS records: ns2.netnames.net, ns1.netnames.net, ns5.netnames.net, ns6.netnames.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachyourself.com (unsigned zone)

⏱️ Timing

Total: 568ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`195.184.230.162`
NS	4	`ns1.netnames.net, ns2.netnames.net...`
MX	2	`de-smtp-inbound-1.mimecast.com (pri: 10), de-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	4	`MS=ms36760314, _n2s3ndjr90agwxc50beo9k6hzstq7oe...`
SOA	1	`ns1.netnames.net hostmaster.cscdns.net`

Analysis

Hierarchy

teachyourself.com is the parent of library.teachyourself.com.

IP Addresses

teachyourself.com resolves to a single IP address: 195.184.230.162.

Name Servers

teachyourself.com is delegated to four name servers: ns1.netnames.net, ns2.netnames.net, ns5.netnames.net and ns6.netnames.net.

teachyourself.com at least partially shares name servers with other domains, including tts-company.com, celesio.nl, barclays-jar.com, flolan.mx and richs.com.mx.

These name servers are commonly used with ns1.cirquent.de and ns2.cirquent.de.

Host names with two IP numbers:

ns1.netnames.net points to: 2610:a1:1022::100 and 156.154.130.100.

ns2.netnames.net points to: 2610:a1:1023::100 and 156.154.131.100.

ns5.netnames.net points to: 2610:a1:1022::100 and 156.154.130.100.

ns6.netnames.net points to: 2610:a1:1023::100 and 156.154.131.100.

Host names pointing to 2610:a1:1022::100: ns1.netnames.net and ns5.netnames.net.

Host names pointing to 156.154.130.100: ns1.netnames.net and ns5.netnames.net.

Host names pointing to 2610:a1:1023::100: ns2.netnames.net and ns6.netnames.net.

Host names pointing to 156.154.131.100: ns2.netnames.net and ns6.netnames.net.

Mail Servers

teachyourself.com is handled by two mail servers: de-smtp-inbound-1.mimecast.com and de-smtp-inbound-2.mimecast.com.

teachyourself.com shares its mail server setup with other domains, including travel-associates.com.au, nwsw.nl, envac.dk, reuter-shop.com and idc.sk.

The mail servers for teachyourself.com are shared with other domains, for instance ville-malakoff.fr, piriac-sur-mer.fr, lucas-nuelle.com, xramp.com and intelenetglobal.com.

Names with two IPs:

de-smtp-inbound-1.mimecast.com points to 194.104.108.22 and 194.104.110.22.

de-smtp-inbound-2.mimecast.com points to 194.104.108.22 and 194.104.110.22.

Names pointing to 194.104.108.22: de-smtp-inbound-1.mimecast.com and de-smtp-inbound-2.mimecast.com.

Names pointing to 194.104.110.22: de-smtp-inbound-1.mimecast.com and de-smtp-inbound-2.mimecast.com.

teachyourself.com - robtex.com