`isb-nrw.com`

DNSSEC	⚠️ Not signed
A	85.13.141.88^{🇩🇪 NMM-AS85.13.141.0/24 Neue Medien Muennich}
		PTR	`dd50216.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	`w011e53f.kasserver.com` ⭐
		A	85.13.141.88^{🇩🇪 NMM-AS85.13.141.0/24 Neue Medien Muennich}
			PTR	`dd50216.kasserver.com`
TXT	`v=spf1 a mx include:spf.kasserver.com ~all`
SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2603041245

`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=1780797516

Same first word

isb-nrw.info

isb-nrw.com

isb-nrw.org

DNS History

6 records (4 active, 2 former)

●NSns5.kasserver.com2015-07-20 → 2026-06-07 · 2 obs

● 2015-07-20 06:53:46
● 2026-06-07 02:26:34

●NSns6.kasserver.com2015-07-20 → 2026-06-07 · 2 obs

● 2015-07-20 06:53:46
● 2026-06-07 02:26:34

○MXmail.isb-nrw.com2015-07-20 → 2016-06-24 · 4 obs

● 2015-07-20 06:53:46
● 2016-06-24 05:57:14
○ 2017-02-08 11:53:34
○ 2026-06-07 02:26:34

●MXw011e53f.kasserver.com2017-02-08 → 2026-06-07 · 3 obs

○ 2016-06-24 05:57:14
● 2017-02-08 11:53:34
● 2026-06-07 02:26:34

○A85.13.131.692015-07-20 → 2017-02-08 · 4 obs

● 2015-07-20 06:53:46
● 2017-02-08 11:53:34
○ 2018-10-13 17:54:44
○ 2026-06-07 02:26:34

●A85.13.141.882018-10-13 → 2026-06-07 · 3 obs

○ 2017-02-08 11:53:34
● 2018-10-13 17:54:44
● 2026-06-07 02:26:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net...	-
isb-nrw.com	ns5.kasserver.com, ns6.kasserver.com	2 records

✅ Authoritative Response

Server:85.13.128.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isb-nrw.com (unsigned zone)

⏱️ Timing

Total: 351ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.141.88`
NS	2	`ns5.kasserver.com, ns6.kasserver.com`
MX	1	`w011e53f.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 (ns5.kasserver.com, ns6.kasserver.com)

Analysis

IP Addresses

isb-nrw.com resolves to just one IP address, 85.13.141.88.

Two other host names, along with chris-roxx.com, mail.kijgrand.de and konditorei-koehler.de, also share IP numbers with isb-nrw.com.

Name Servers

isb-nrw.com is served by two delegated name servers, ns5.kasserver.com and ns6.kasserver.com.

isb-nrw.com shares its NS records with other domains, for example kredit-aufnehmen.org, svb-huegle.eu, auto-cleanic.de and two others.

isb-nrw.com shares at least some of its name servers with other domains, including fischer-city.de, weinrebe24.de, v-wc.de and two others.

These name servers are frequently seen alongside the name servers a-dns-service.de, ns3.kas-dns-server.de, ns3.ai-dns.de and ns5.name-server-kas.de.

ns5.kasserver.com and ns6.kasserver.com each resolve to one IP number: ns5.kasserver.com points to 85.13.128.3 and ns6.kasserver.com points to 85.13.159.101.

Mail Servers

The sole mail server for isb-nrw.com is w011e53f.kasserver.com.

isb-nrw.com shares its mail server configuration with other domains, such as isb-nrw.org and isb-nrw.info.

There is one IP number for w011e53f.kasserver.com: 85.13.141.88.

isb-nrw.com - robtex.com

isb-nrw.com

com