`viable-systems.de`

DNSSEC	⚠️ Not signed
A	157.90.232.153^{🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC}
		PTR	`cs498.fc-server.net`
NS	`ns1.axcoredns.com` ⭐
		A	2a09:71c0::101:0:12^{🇩🇪 SYNLINQ2a09:71c0::/29}
		A	45.67.68.12^{🇩🇪 SYNLINQ45.67.68.0/24}
			PTR	`ns1-tec.de`
NS	`ns2.axcoredns.org`
		A	2a01:4f8:c014:d47::12^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	46.224.169.132^{🇮🇷 Hetzner46.224.0.0/15 HETZNER-DC}
			PTR	`ns2-tec.de`
SOA	`ns1.axcoredns.com`webmaster@viable-systems.de 2026-02-18 #2

`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=1776401610

Same first word

viable-systems.org

viable-systems.de

DNS History

9 records (3 active, 6 former)

○NSns1-tec.de2015-08-10 → 2026-03-30 · 4 obs

● 2015-08-10 05:16:40
● 2026-03-30 23:57:02
○ 2026-04-17 05:21:24
○ 2026-04-17 05:21:26

●NSns1.axcoredns.com2026-04-17 → 2026-04-17 · 3 obs

○ 2026-03-30 23:57:02
● 2026-04-17 05:21:24
● 2026-04-17 05:21:26

○NSns2-tec.de2015-08-10 → 2026-03-30 · 4 obs

● 2015-08-10 05:16:40
● 2026-03-30 23:57:02
○ 2026-04-17 05:21:24
○ 2026-04-17 05:21:26

●NSns2.axcoredns.org2026-04-17 → 2026-04-17 · 3 obs

○ 2026-03-30 23:57:02
● 2026-04-17 05:21:24
● 2026-04-17 05:21:26

○MXmail.fc-host11.de2015-08-10 → 2016-03-06 · 4 obs

● 2015-08-10 05:16:40
● 2016-03-06 02:02:36
○ 2016-04-26 21:51:38
○ 2026-04-17 05:21:26

○MXmail.viable-systems.de2016-04-26 → 2018-07-07 · 5 obs

○ 2016-03-06 02:02:36
● 2016-04-26 21:51:38
● 2018-07-07 13:12:10
○ 2021-10-04 05:46:44
○ 2026-04-17 05:21:26

●A157.90.232.1532021-10-04 → 2026-04-17 · 3 obs

○ 2018-07-07 13:12:10
● 2021-10-04 05:46:44
● 2026-04-17 05:21:26

○A80.77.31.2322016-04-26 → 2018-07-07 · 5 obs

○ 2016-03-06 02:02:36
● 2016-04-26 21:51:38
● 2018-07-07 13:12:10
○ 2021-10-04 05:46:44
○ 2026-04-17 05:21:26

○A83.243.43.1502015-08-10 → 2016-03-06 · 4 obs

● 2015-08-10 05:16:40
● 2016-03-06 02:02:36
○ 2016-04-26 21:51:38
○ 2026-04-17 05:21:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
viable-systems.de	ns1.axcoredns.com, ns2.axcoredns.org	-

✅ Authoritative Response

Server:45.67.68.12

NS records: ns1.axcoredns.com, ns2.axcoredns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for viable-systems.de (unsigned zone)

⏱️ Timing

Total: 937ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.90.232.153`
NS	2	`ns2.axcoredns.org, ns1.axcoredns.com`
SOA	1	`ns1.axcoredns.com webmaster.viable-syste`

Analysis

IP Addresses

viable-systems.de resolves to one IP number: 157.90.232.153.

other host names including mail.viable-solutions.de, info.ct-klein.de, mail.fahrradladen-saarbruecken.de, ct-klein.de and viablesystems.de share IP numbers with viable-systems.de.

Name Servers

viable-systems.de is delegated to two name servers ns1.axcoredns.com and ns2.axcoredns.org.

viable-systems.de shares the same name server setup as other domains, for instance fellbach-schluesseldienst.de, webcammodels.de, outdoorlife.de, psyom.de and i2k.de.

viable-systems.de at least partially shares name servers with other domains, for instance pocket-lint.eu, tone-art.nl, vhs-radolfzell.de, pflu.de and efal.de.

These name servers are commonly used alongside ns1-tec.de and ns2-tec.de.

Host names with two IP numbers:

The host name ns1.axcoredns.com points to 2a09:71c0::101:0:12 and 45.67.68.12; the host name ns2.axcoredns.org points to 2a01:4f8:c014:d47::12 and 46.224.169.132.

viable-systems.de - robtex.com