`cdubueren.de`

DNSSEC	⚠️ Not signed
A	85.13.132.1^{🇩🇪 NMM-AS85.13.132.0/24 Neue Medien Muennich}
		PTR	`dd51338.kasserver.com`
NS	`ns5.kasserver.com` ⭐
		A	85.13.128.3^{🇩🇪 NMM-AS85.13.128.0/24 Neue Medien Muennich}
			PTR	`ns5.kasserver.com`
NS	`a-dns-service.de`
		A	135.181.2.96^{🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC}
			PTR	`a-dns-service.de`
NS	`ns3.kas-dns-server.de`
		A	85.13.179.179^{🇩🇪 NMM-AS85.13.179.0/24 Neue Medien Muennich}
			PTR	`85-13-179-179-static.kasserver.com`
NS	`ns6.kasserver.com`
		A	85.13.159.101^{🇩🇪 NMM-AS85.13.159.0/24 Neue Medien Muennich}
			PTR	`ns6.kasserver.com`
MX	`w00b802b.kasserver.com` ⭐
		A	85.13.132.1^{🇩🇪 NMM-AS85.13.132.0/24 Neue Medien Muennich}
			PTR	`dd51338.kasserver.com`
TXT	`v=spf1 a mx include:spf.kasserver.com ~all`
SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2512161738

`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=1771291602

DNS History

9 records (6 active, 3 former)

●NSa-dns-service.de2026-03-11 → 2026-03-11 · 3 obs

○ 2015-05-27 12:11:48
● 2026-03-11 11:56:26
● 2026-03-11 11:56:30

●NSns3.kas-dns-server.de2026-03-11 → 2026-03-11 · 3 obs

○ 2015-05-27 12:11:48
● 2026-03-11 11:56:26
● 2026-03-11 11:56:30

●NSns5.kasserver.com2015-05-27 → 2026-03-11 · 2 obs

● 2015-05-27 12:11:48
● 2026-03-11 11:56:30

●NSns6.kasserver.com2015-05-27 → 2026-03-11 · 2 obs

● 2015-05-27 12:11:48
● 2026-03-11 11:56:30

○MXmail.cdubueren.de2015-05-27 → 2016-07-25 · 4 obs

● 2015-05-27 12:11:48
● 2016-07-25 20:18:56
○ 2017-03-20 12:28:18
○ 2026-03-11 11:56:30

●MXw00b802b.kasserver.com2017-03-20 → 2026-03-11 · 3 obs

○ 2016-07-25 20:18:56
● 2017-03-20 12:28:18
● 2026-03-11 11:56:30

●A85.13.132.12026-03-11 → 2026-03-11 · 3 obs

○ 2020-03-04 14:50:22
● 2026-03-11 11:56:26
● 2026-03-11 11:56:30

○A85.13.135.1992015-05-27 → 2016-07-25 · 4 obs

● 2015-05-27 12:11:48
● 2016-07-25 20:18:56
○ 2017-03-20 12:28:18
○ 2026-03-11 11:56:30

○A85.13.145.1882017-03-20 → 2020-03-04 · 5 obs

○ 2016-07-25 20:18:56
● 2017-03-20 12:28:18
● 2020-03-04 14:50:22
○ 2026-03-11 11:56:26
○ 2026-03-11 11:56:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
cdubueren.de	ns5.kasserver.com, a-dns-service.de, ns3.kas-dns-server.de, ns6.kasserver.com	2 records

✅ Authoritative Response

Server: 85.13.159.101

NS records: ns5.kasserver.com, a-dns-service.de, ns3.kas-dns-server.de, ns6.kasserver.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdubueren.de (unsigned zone)

⏱️ Timing

Total: 809ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.132.1`
NS	4	`ns5.kasserver.com, ns3.kas-dns-server.de...`
MX	1	`w00b802b.kasserver.com (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.kasserver.com ~a`
SOA	1	`ns5.kasserver.com hostmaster.kasserver.c`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.kas-dns-server.de, a-dns-service.de)

Analysis

IP Addresses

cdubueren.de points to an IP address: 85.13.132.1.

other host names include mail.helloworldstudios.com, mail.hohenfelde-strand.de, brandschutz-betriebe.de, imk-ingenieure.de and w017f39e.kasserver.com; they share IP numbers with cdubueren.de.

Name Servers

cdubueren.de delegates to four name servers: a-dns-service.de, ns5.kasserver.com, ns6.kasserver.com and ns3.kas-dns-server.de.

cdubueren.de at least partially shares name servers with other domains, for instance hohaso.com, julia-ahorn.at, dastromedia.org, re-racing.de and alabri.net.

These name servers are commonly used with ns3.ai-dns.de and ns5.name-server-kas.de.

Host names with one IP number: a-dns-service.de points to: 135.181.2.96; ns5.kasserver.com points to: 85.13.128.3; ns6.kasserver.com points to: 85.13.159.101; ns3.kas-dns-server.de points to: 85.13.179.179.

Mail Servers

cdubueren.de is handled by a single mail server, w00b802b.kasserver.com.

The host name w00b802b.kasserver.com points to IP 85.13.132.1.

cdubueren.de - robtex.com

cdubueren.de

de