`qdk-net.de`

DNSSEC	⚠️ Not signed
A	85.13.140.53^{🇩🇪 NMM-AS85.13.140.0/24 Neue Medien Muennich}
		PTR	`dd10508.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	`w009f30c.kasserver.com` ⭐
		A	85.13.140.53^{🇩🇪 NMM-AS85.13.140.0/24 Neue Medien Muennich}
			PTR	`dd10508.kasserver.com`
TXT	`v=spf1 mx a ptr ?all`
SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2602171210

`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=1776011590

Subdomains

mail.qdk-net.de

Same first word

qdk-net.de

Similar names

qd-kent.com

DNS History

8 records (6 active, 2 former)

●NSa-dns-service.de2026-04-07 → 2026-04-12 · 3 obs

○ 2015-07-25 01:37:20
● 2026-04-07 01:50:28
● 2026-04-12 17:03:20

●NSns3.kas-dns-server.de2026-04-07 → 2026-04-12 · 3 obs

○ 2015-07-25 01:37:20
● 2026-04-07 01:50:28
● 2026-04-12 17:03:20

●NSns5.kasserver.com2015-07-25 → 2026-04-12 · 2 obs

● 2015-07-25 01:37:20
● 2026-04-12 17:03:20

●NSns6.kasserver.com2015-07-25 → 2026-04-12 · 2 obs

● 2015-07-25 01:37:20
● 2026-04-12 17:03:20

○MXmail.qdk-net.de2015-07-25 → 2016-11-08 · 4 obs

● 2015-07-25 01:37:20
● 2016-11-08 17:35:48
○ 2017-06-05 11:31:02
○ 2026-04-12 17:03:20

●MXw009f30c.kasserver.com2017-06-05 → 2026-04-12 · 3 obs

○ 2016-11-08 17:35:48
● 2017-06-05 11:31:02
● 2026-04-12 17:03:20

●A85.13.140.532026-04-07 → 2026-04-12 · 3 obs

○ 2017-06-05 11:31:02
● 2026-04-07 01:50:28
● 2026-04-12 17:03:20

○A85.13.148.1312015-07-25 → 2017-06-05 · 4 obs

● 2015-07-25 01:37:20
● 2017-06-05 11:31:02
○ 2026-04-07 01:50:28
○ 2026-04-12 17:03:20

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:135.181.2.96

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for qdk-net.de (unsigned zone)

⏱️ Timing

Total: 673ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.140.53`
NS	4	`ns3.kas-dns-server.de, a-dns-service.de...`
MX	1	`w009f30c.kasserver.com (pri: 10)`
TXT	1	`v=spf1 mx a ptr ?all`
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

Hierarchy

qdk-net.de is the parent of mail.qdk-net.de.

IP Addresses

qdk-net.de resolves to one IP number: 85.13.140.53.

other host names including tompeel.com, w00d8ec2.kasserver.com, stereomatzel.de, oweisse.kasserver.com and mail.schloss-altenburg.de share IP numbers with qdk-net.de.

Name Servers

qdk-net.de is delegated to four name servers: a-dns-service.de, ns5.kasserver.com, ns6.kasserver.com and ns3.kas-dns-server.de.

qdk-net.de at least partially shares name servers with other domains, for instance brand-haustechnik.com, neonweiss.com, knebel-ludwig-wolf.de, dietze.biz and mathe-lernportal.de.

These name servers are commonly used alongside 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

qdk-net.de is handled by a single mail server, w009f30c.kasserver.com.

w009f30c.kasserver.com resolves to IP 85.13.140.53.

qdk-net.de - robtex.com

qdk-net.de

de