`digital-classroom.com`

DNSSEC	⚠️ Not signed
A	2a01:238:20a:202:1094::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
A	81.169.145.94^{🇩🇪 STRATO81.169.144.0/22 AG}
NS	`ns1.bdm.microsoftonline.com` ⭐
		A	2603:1061:0:700::d0^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
		A	13.107.236.208^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
NS	`ns2.bdm.microsoftonline.com`
		A	2620:1ec:8ec:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
		A	150.171.21.208^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
NS	`ns3.bdm.microsoftonline.com`
		A	2a01:111:4000:700::d0^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-208.azure-dns.org`
		A	204.14.183.208^{🇺🇸 Microsoft204.14.180.0/22}
NS	`ns4.bdm.microsoftonline.com`
		A	2620:1ec:bda:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
		A	208.84.5.208^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
MX	`digitalclassroom-com01i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca27::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::1^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::2^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
		A	52.101.168.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	52.101.170.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	52.101.170.1^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	52.101.170.2^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
TXT	`mscid=ymbYASKWdyanNsxHRwVbgSts3H+HUDVWktK6g57NwztGSxehnSH3VgATWJ9oPh3/XA3qrFP...`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms66382639`
SOA	`ns1.bdm.microsoftonline.com`azuredns-hostmaster@microsoft.com serial=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=1783840952

Same first word

digital-classroom.com

DNS History

29 records (7 active, 22 former)

●NSns1.bdm.microsoftonline.com2026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○NSns1.namebrightdns.com2015-05-25 → 2017-05-20 · 8 obs

● 2015-05-25 13:42:38
● 2015-10-18 01:47:42
○ 2016-01-18 19:35:06
○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
● 2017-05-20 20:07:40
○ 2026-02-25 15:28:26
○ 2026-07-12 07:47:48

●NSns2.bdm.microsoftonline.com2026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○NSns2.namebrightdns.com2015-05-25 → 2017-05-20 · 4 obs

● 2015-05-25 13:42:38
● 2017-05-20 20:07:40
○ 2026-02-25 15:28:26
○ 2026-07-12 07:47:48

●NSns3.bdm.microsoftonline.com2026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

●NSns4.bdm.microsoftonline.com2026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○NSnsg1.namebrightdns.com2016-01-18 → 2016-01-18 · 4 obs

○ 2015-10-18 01:47:42
● 2016-01-18 19:35:06
○ 2016-04-08 00:38:14
○ 2026-07-12 07:47:48

○NSnsg2.namebrightdns.com2016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-18 19:35:06
● 2016-04-08 00:38:14
○ 2016-09-24 07:21:38
○ 2026-07-12 07:47:48

○MXanmail.namebrightmail.com2015-05-25 → 2015-05-25 · 3 obs

● 2015-05-25 13:42:38
○ 2015-10-18 01:47:42
○ 2026-07-12 07:47:48

●MXdigitalclassroom-com01i.mail.protection.outlook.com2026-02-25 → 2026-07-12 · 3 obs

○ 2015-10-18 01:47:42
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○A107.23.198.2402016-09-24 → 2016-09-24 · 4 obs

○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

●A2a01:238:20a:202:1094::2026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○A52.200.243.1232016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-18 19:35:06
● 2016-04-08 00:38:14
○ 2016-09-24 07:21:38
○ 2026-07-12 07:47:48

○A52.204.129.222017-05-20 → 2017-05-20 · 4 obs

○ 2016-09-24 07:21:38
● 2017-05-20 20:07:40
○ 2026-02-25 15:28:26
○ 2026-07-12 07:47:48

○A52.206.43.2342016-09-24 → 2016-09-24 · 4 obs

○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○A52.21.52.1092016-01-18 → 2016-01-18 · 4 obs

○ 2015-10-18 01:47:42
● 2016-01-18 19:35:06
○ 2016-04-08 00:38:14
○ 2026-07-12 07:47:48

○A52.4.72.1372016-09-24 → 2016-09-24 · 4 obs

○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○A54.152.144.2432016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-18 19:35:06
● 2016-04-08 00:38:14
○ 2016-09-24 07:21:38
○ 2026-07-12 07:47:48

○A54.174.31.2542015-10-18 → 2015-10-18 · 4 obs

○ 2015-05-25 13:42:38
● 2015-10-18 01:47:42
○ 2016-01-18 19:35:06
○ 2026-07-12 07:47:48

○A54.208.74.2152015-10-18 → 2015-10-18 · 4 obs

○ 2015-05-25 13:42:38
● 2015-10-18 01:47:42
○ 2016-01-18 19:35:06
○ 2026-07-12 07:47:48

○A54.209.174.1672016-01-18 → 2016-01-18 · 4 obs

○ 2015-10-18 01:47:42
● 2016-01-18 19:35:06
○ 2016-04-08 00:38:14
○ 2026-07-12 07:47:48

○A54.210.33.1902016-09-24 → 2016-09-24 · 4 obs

○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○A54.236.123.2242016-09-24 → 2016-09-24 · 4 obs

○ 2016-04-08 00:38:14
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○A54.236.84.1112015-05-25 → 2015-05-25 · 3 obs

● 2015-05-25 13:42:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○A54.85.127.702017-05-20 → 2017-05-20 · 4 obs

○ 2016-09-24 07:21:38
● 2017-05-20 20:07:40
○ 2026-02-25 15:28:26
○ 2026-07-12 07:47:48

○A54.85.146.1862015-05-25 → 2015-05-25 · 3 obs

● 2015-05-25 13:42:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

●A81.169.145.942026-02-25 → 2026-07-12 · 3 obs

○ 2017-05-20 20:07:40
● 2026-02-25 15:28:26
● 2026-07-12 07:47:48

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-25 → 2016-09-24 · 4 obs

● 2015-05-25 13:42:38
● 2016-09-24 07:21:38
○ 2017-05-20 20:07:40
○ 2026-07-12 07:47:48

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-05-20 → 2017-05-20 · 4 obs

○ 2016-09-24 07:21:38
● 2017-05-20 20:07:40
○ 2026-02-25 15:28:26
○ 2026-07-12 07:47:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
digital-classroom.com	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com	8 records

✅ Authoritative Response

Server:13.107.236.208

NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for digital-classroom.com (unsigned zone)

⏱️ Timing

Total: 677ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.145.94`
AAAA	1	`2a01:238:20a:202:1094::`
NS	4	`ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...`
MX	1	`digitalclassroom-com01i.mail.protection.`
TXT	3	`mscid=ymbYASKWdyanNsxHRwVbgSts3H+HUDVWkt, v=spf1 include:spf.protection.outlook.co...`
SOA	1	`ns1.bdm.microsoftonline.com azuredns-hos`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...)

Analysis

IP Addresses

digital-classroom.com resolves to the IP addresses 81.169.145.94 and 2a01:238:20a:202:1094::

Among the host names that share IP numbers with digital-classroom.com are feuerwehr-schotten.de, healthy-life.eu, dojai.de and two others.

Name Servers

The domain digital-classroom.com is delegated to these four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

digital-classroom.com shares at least some of its name servers with other domains, including grgpneus.it, cphcc.com.au, hwhunter.net and two others.

These name servers are frequently seen alongside the name servers ns1.netregistry.net, ns2.netregistry.net, ns1.register.it and ns2.register.it.

Mail Servers

digital-classroom.com routes its mail through a single mail server, digitalclassroom-com01i.mail.protection.outlook.com.

digitalclassroom-com01i.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.168.0, 52.101.170.0 and 52.101.170.1, along with 5 other.

digital-classroom.com - robtex.com