`os-netsolutions.de`

DNSSEC	⚠️ Not signed
A	212.16.229.186^{🇩🇪 SOCO-AS212.16.224.0/19 SOCO Network Solutions GmbH}
		PTR	`banane.kobo24.de`
NS	`nsa1.schlundtech.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.com`
		A	185.132.34.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.com`
NS	`nsb1.schlundtech.de`
		A	2607:f1c0:fe:53:185:132:35:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.org`
		A	185.132.35.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.org`
NS	`nsc1.schlundtech.de`
		A	2001:8d8:fe:53:217:160:80:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
		A	217.160.80.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
NS	`nsd1.schlundtech.de`
		A	2001:8d8:fe:53:217:160:81:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
		A	217.160.81.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
MX	`mail.kobosix.de` ⭐
		A	212.16.229.189^{🇩🇪 SOCO-AS212.16.224.0/19 SOCO Network Solutions GmbH}
TXT	`v=spf1 a mx ip4:212.16.229.185/29 ip4:24.134.174.145 -all`
SOA	`nsa1.schlundtech.de`os@kobo.de 2022-05-01 #1

`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=1774622775

WOT: SAFE (68/100)

Same first word

os-netsolutions.de

Similar names

stone-solutions.de

stone-solutions.com

DNS History

9 records (6 active, 3 former)

●NSnsa1.schlundtech.de2015-08-11 → 2026-03-27 · 2 obs

● 2015-08-11 09:05:54
● 2026-03-27 14:49:38

●NSnsb1.schlundtech.de2015-08-11 → 2026-03-27 · 2 obs

● 2015-08-11 09:05:54
● 2026-03-27 14:49:38

●NSnsc1.schlundtech.de2015-08-11 → 2026-03-27 · 2 obs

● 2015-08-11 09:05:54
● 2026-03-27 14:49:38

●NSnsd1.schlundtech.de2015-08-11 → 2026-03-27 · 2 obs

● 2015-08-11 09:05:54
● 2026-03-27 14:49:38

○MXkoblenz.homeunix.org2015-08-11 → 2020-03-04 · 4 obs

● 2015-08-11 09:05:54
● 2020-03-04 22:13:00
○ 2026-02-20 03:29:00
○ 2026-03-27 14:49:38

●MXmail.kobosix.de2026-02-20 → 2026-03-27 · 3 obs

○ 2020-03-04 22:13:00
● 2026-02-20 03:29:00
● 2026-03-27 14:49:38

○MXwww.kobo.de2015-08-11 → 2020-03-04 · 4 obs

● 2015-08-11 09:05:54
● 2020-03-04 22:13:00
○ 2026-02-20 03:29:00
○ 2026-03-27 14:49:38

○A193.111.198.1012015-08-11 → 2020-03-04 · 4 obs

● 2015-08-11 09:05:54
● 2020-03-04 22:13:00
○ 2026-02-20 03:29:00
○ 2026-03-27 14:49:38

●A212.16.229.1862026-02-20 → 2026-03-27 · 3 obs

○ 2020-03-04 22:13:00
● 2026-02-20 03:29:00
● 2026-03-27 14:49:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
os-netsolutions.de	nsa1.schlundtech.de, nsb1.schlundtech.de, nsc1.schlundtech.de, nsd1.schlundtech.de	-

✅ Authoritative Response

Server:217.160.80.227

NS records: nsa1.schlundtech.de, nsb1.schlundtech.de, nsc1.schlundtech.de, nsd1.schlundtech.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for os-netsolutions.de (unsigned zone)

⏱️ Timing

Total: 995ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.16.229.186`
NS	4	`nsd1.schlundtech.de, nsa1.schlundtech.de...`
MX	1	`mail.kobosix.de (pri: 10)`
TXT	1	`v=spf1 a mx ip4:212.16.229.185/29 ip4:24`
SOA	1	`nsa1.schlundtech.de os.kobo.de`

Analysis

IP Addresses

os-netsolutions.de resolves to one IP number: 212.16.229.186.

Other host names, for instance banane.kobo24.de, adrec.de, kobo24.de, mail.adrec.de and kobosix.de share IP numbers with os-netsolutions.de.

Name Servers

os-netsolutions.de delegates to four name servers: nsa1.schlundtech.de, nsb1.schlundtech.de, nsc1.schlundtech.de and nsd1.schlundtech.de.

os-netsolutions.de at least partially shares name servers with other domains, including cryptojs.info, portools.de, mail.isp-net.de, twa-thueringen.de and mediainfo.de.

Host names with two IP numbers: nsa1.schlundtech.de points to 2607:f1c0:fe:53:185:132:34:227 and 185.132.34.227; nsb1.schlundtech.de points to 2607:f1c0:fe:53:185:132:35:227 and 185.132.35.227; nsc1.schlundtech.de points to 2001:8d8:fe:53:217:160:80:227 and 217.160.80.227; nsd1.schlundtech.de points to 2001:8d8:fe:53:217:160:81:227 and 217.160.81.227.

Mail Servers

A single mail server handles os-netsolutions.de, mail.kobosix.de.

os-netsolutions.de uses the same mail server setup as other domains, including kobo24.de and kobosix.de.

os-netsolutions.de shares some mail servers with other domains, at least in part, for example adrec.de.

Host name mail.kobosix.de resolves to a single IP: 212.16.229.189.

os-netsolutions.de - robtex.com