cloudcourse.de - dns.ninja

`cloudcourse.de`

DNSSEC	⚠️ Not signed
A	87.140.57.65^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
NS	`ns2.inwx.de` ⭐
		A	2001:67c:10b8::104^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
		A	176.97.158.104^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
NS	`ns.inwx.de`
		A	2001:67c:1bc::104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
		A	192.174.68.104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
NS	`ns3.inwx.eu`
		A	2a02:d500::53^{🇩🇪 INWX2a02:d500::/29}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
		A	45.87.158.53^{🇩🇪 INWX45.87.158.0/23}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
MX	`cloudcourse-de.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}
		A	52.101.170.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.170.1^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.170.2^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
TXT	`zone-ownership-verification-ef85a59573ae4a8d7952391476e80fcb603f19f34ca4ae5c2...`
TXT	`v=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all`
SOA	`ns.inwx.de`hostmaster@inwx.de 2026-03-05 #5

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1783999174

Subdomains

office.cloudcourse.de

Same first word

cloudcourse.com

cloudcourse.de

Similar names

DNS History

5 records (5 active, 0 former)

●NSns.inwx.de2026-07-05 → 2026-07-14 · 2 obs

● 2026-07-05 00:32:28
● 2026-07-14 03:24:46

●NSns2.inwx.de2026-07-05 → 2026-07-14 · 2 obs

● 2026-07-05 00:32:28
● 2026-07-14 03:24:46

●NSns3.inwx.eu2026-07-05 → 2026-07-14 · 2 obs

● 2026-07-05 00:32:28
● 2026-07-14 03:24:46

●MXcloudcourse-de.mail.protection.outlook.com2026-07-05 → 2026-07-14 · 2 obs

● 2026-07-05 00:32:28
● 2026-07-14 03:24:46

●A87.140.57.652026-07-05 → 2026-07-14 · 2 obs

● 2026-07-05 00:32:28
● 2026-07-14 03:24:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, z.nic.de, f.nic.de	-
cloudcourse.de	ns3.inwx.eu, ns.inwx.de, ns2.inwx.de	-

✅ Authoritative Response

Server:176.97.158.104

NS records: ns3.inwx.eu, ns.inwx.de, ns2.inwx.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cloudcourse.de (unsigned zone)

⏱️ Timing

Total: 1057ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.140.57.65`
NS	3	`ns.inwx.de, ns2.inwx.de...`
MX	1	`cloudcourse-de.mail.protection.outlook.c`
TXT	2	`zone-ownership-verification-ef85a59573ae, v=spf1 include:_spf-eu.ionos.com include`
SOA	1	`ns.inwx.de hostmaster.inwx.de`

Analysis

Hierarchy

office.cloudcourse.de is delegated beneath cloudcourse.de.

IP Addresses

cloudcourse.de directs to one IP number, which is 87.140.57.65.

Further host names like mail.office.cloudcourse.de and office.cloudcourse.de overlap in IP numbers with cloudcourse.de.

Name Servers

cloudcourse.de has three name servers — ns2.inwx.de, ns.inwx.de and ns3.inwx.eu.

There is at least partial name server overlap between cloudcourse.de and other domains — bastart.it, freeit.de, kpic.at and two more among them.

These name servers are routinely deployed together with the name servers ns3.inwx.de.

Each of ns2.inwx.de, ns.inwx.de and ns3.inwx.eu points to two IP numbers. ns2.inwx.de points to 176.97.158.104 and 2001:67c:10b8::104. ns.inwx.de points to 192.174.68.104 and 2001:67c:1bc::104. ns3.inwx.eu points to 45.87.158.53 and 2a02:d500::53.

Mail Servers

cloudcourse.de routes its mail through a single mail server, cloudcourse-de.mail.protection.outlook.com.

cloudcourse-de.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.