`koletzke.de`

DNSSEC	⚠️ Not signed
A	85.13.154.7^{🇩🇪 NMM-AS85.13.154.0/24 Neue Medien Muennich}
		PTR	`dd37412.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	`ns6.kasserver.com`
		A	85.13.159.101^{🇩🇪 NMM-AS85.13.159.0/24 Neue Medien Muennich}
			PTR	`ns6.kasserver.com`
MX	`w012ccc6.kasserver.com` ⭐
		A	85.13.154.7^{🇩🇪 NMM-AS85.13.154.0/24 Neue Medien Muennich}
			PTR	`dd37412.kasserver.com`
TXT	`v=spf1 mx -all`
SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2602281045

`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=1778749028

Subdomains

mail.koletzke.de

Same first word

koletzke.de

Similar names

kloetzke.net

DNS History

6 records (4 active, 2 former)

●NSns5.kasserver.com2015-07-08 → 2026-05-14 · 2 obs

● 2015-07-08 18:40:00
● 2026-05-14 09:08:48

●NSns6.kasserver.com2015-07-08 → 2026-05-14 · 2 obs

● 2015-07-08 18:40:00
● 2026-05-14 09:08:48

○MXmail.koletzke.de2015-07-08 → 2016-07-06 · 4 obs

● 2015-07-08 18:40:00
● 2016-07-06 07:05:42
○ 2017-06-21 20:27:26
○ 2026-05-14 09:08:48

●MXw012ccc6.kasserver.com2017-06-21 → 2026-05-14 · 3 obs

○ 2016-07-06 07:05:42
● 2017-06-21 20:27:26
● 2026-05-14 09:08:48

○A85.13.153.1132015-07-08 → 2017-06-21 · 4 obs

● 2015-07-08 18:40:00
● 2017-06-21 20:27:26
○ 2026-03-29 03:45:14
○ 2026-05-14 09:08:48

●A85.13.154.72026-03-29 → 2026-05-14 · 3 obs

○ 2017-06-21 20:27:26
● 2026-03-29 03:45:14
● 2026-05-14 09:08:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
koletzke.de	ns5.kasserver.com, ns6.kasserver.com	-

✅ Authoritative Response

Server:85.13.159.101

NS records: ns5.kasserver.com, ns6.kasserver.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koletzke.de (unsigned zone)

⏱️ Timing

Total: 1666ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.154.7`
NS	2	`ns5.kasserver.com, ns6.kasserver.com`
MX	1	`w012ccc6.kasserver.com (pri: 10)`
TXT	1	`v=spf1 mx -all`
SOA	1	`ns5.kasserver.com hostmaster.kasserver.c`

Analysis

Hierarchy

The parent of mail.koletzke.de is koletzke.de.

IP Addresses

koletzke.de points to a single IP address: 85.13.154.7.

Other host names such as piwik.steb-service.de, mail.koletzke.de, mail.swift-tutorials.com, privatschulverlag.de and elektroheidig.de share IPs with koletzke.de.

Name Servers

Two name servers ns5.kasserver.com and ns6.kasserver.com handle the delegation for koletzke.de.

koletzke.de shares the same name server setup as other domains, for example ebooks.services, buchholzer.net, therax.de, cappco.de and cthulhu-webshop.com.

koletzke.de at least partially shares name servers with other domains, for example openhistory.de, incitim.de, ace-tec-shop1.de, narcotics-anonymous.de and eventprod.de.

these name servers commonly pair with a-dns-service.de, ns3.kas-dns-server.de, ns3.ai-dns.de and ns5.name-server-kas.de.

Host names with one IP number:

ns5.kasserver.com points to 85.13.128.3; ns6.kasserver.com points to 85.13.159.101.

Mail Servers

The w012ccc6.kasserver.com mail server handles koletzke.de.

w012ccc6.kasserver.com points to a single IP number: 85.13.154.7.

koletzke.de - robtex.com

koletzke.de

de