`duo09.de`

DNSSEC	⚠️ Not signed
A	85.13.151.189^{🇩🇪 NMM-AS85.13.151.0/24 Neue Medien Muennich}
		PTR	`dd15318.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	`v132702.kasserver.com` ⭐
		A	85.13.151.189^{🇩🇪 NMM-AS85.13.151.0/24 Neue Medien Muennich}
			PTR	`dd15318.kasserver.com`
TXT	`v=spf1 a mx include:spf.kasserver.com ~all`
TXT	`google-site-verification=-iOmV9I6Bv_o7K0XBMipVvmMz1c7XkY6xipHocYRFWo`
SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2602181234

`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=1778741715

Same first word

duo09.de

DNS History

6 records (4 active, 2 former)

●NSns5.kasserver.com2015-06-04 → 2026-05-14 · 2 obs

● 2015-06-04 17:42:28
● 2026-05-14 07:17:02

●NSns6.kasserver.com2015-06-04 → 2026-05-14 · 2 obs

● 2015-06-04 17:42:28
● 2026-05-14 07:17:02

○MXmail.duo09.de2015-06-04 → 2016-04-16 · 4 obs

● 2015-06-04 17:42:28
● 2016-04-16 00:32:08
○ 2017-01-23 11:33:28
○ 2026-05-14 07:17:02

●MXv132702.kasserver.com2017-01-23 → 2026-05-14 · 3 obs

○ 2016-04-16 00:32:08
● 2017-01-23 11:33:28
● 2026-05-14 07:17:02

○A85.13.147.1132015-06-04 → 2017-01-23 · 4 obs

● 2015-06-04 17:42:28
● 2017-01-23 11:33:28
○ 2020-03-04 02:58:46
○ 2026-05-14 07:17:02

●A85.13.151.1892020-03-04 → 2026-05-14 · 3 obs

○ 2017-01-23 11:33:28
● 2020-03-04 02:58:46
● 2026-05-14 07:17:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
duo09.de	ns5.kasserver.com, ns6.kasserver.com	-

✅ Authoritative Response

Server:85.13.128.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duo09.de (unsigned zone)

⏱️ Timing

Total: 899ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.151.189`
NS	2	`ns5.kasserver.com, ns6.kasserver.com`
MX	1	`v132702.kasserver.com (pri: 10)`
TXT	2	`v=spf1 a mx include:spf.kasserver.com ~a, google-site-verification=-iOmV9I6Bv_o7K0`
SOA	1	`ns5.kasserver.com hostmaster.kasserver.c`

Analysis

IP Addresses

duo09.de points to a single IP address: 85.13.151.189.

Other host names such as w00a2995.kasserver.com, w011ca45.kasserver.com, w00929fe.kasserver.com, w0104e97.kasserver.com and mail.christ-the-king.net share IPs with duo09.de.

Name Servers

Two name servers ns5.kasserver.com and ns6.kasserver.com handle the delegation for duo09.de.

duo09.de shares the same name server setup as other domains, for example bildungshubmk.com, klinik-waldschloesschen.de, pharmadruck.com, movement-notation.de and jonathanmader.com.

duo09.de at least partially shares name servers with other domains, for example meshcon.de, man-design.de, rupat.de, johannasteiner.de and s-leo.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 v132702.kasserver.com mail server handles duo09.de.

The mail server setup for duo09.de is the same as that of other domains, for instance norit-cup.de.

v132702.kasserver.com points to a single IP number: 85.13.151.189.

duo09.de - robtex.com

duo09.de

de