ogsid.de - dns.ninja

`ogsid.de`

DNSSEC	⚠️ Not signed
NS	`ns-a.ktk.de` ⚠️ Not in zone NS records
		A	2a02:1628:0:c000::3:5^{🇩🇪 KTK2a02:1628::/32 KEVAG Telekom GmbH}
		A	212.7.160.5^{🇩🇪 KTK212.7.160.0/19 KEVAG Telekom GmbH}
NS	`ns-b.ktk.io` ⚠️ Not in zone NS records
		A	2a01:5580:154::165^{🇩🇪 KTK2a01:5580::/32 IPv6 route teliko GmbH}
			PTR	`ns-a.ktk.io`
		A	217.17.16.165^{🇩🇪 KTK217.17.16.0/20}
			PTR	`ns-b.ktk.io`
NS	`ns-c.ktk.de` ⚠️ Not in zone NS records
		A	2a02:1628:0:c000::3:11^{🇩🇪 KTK2a02:1628::/32 KEVAG Telekom GmbH}
		A	212.7.160.11^{🇩🇪 KTK212.7.160.0/19 KEVAG Telekom GmbH}

`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=1786353415

Same first word

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DNS History

15 records (3 active, 12 former)

●NSns-a.ktk.de2017-04-03 → 2026-08-10 · 3 obs

○ 2016-09-08 15:51:18
● 2017-04-03 16:20:46
● 2026-08-10 09:29:16

●NSns-b.ktk.io2017-04-03 → 2026-08-10 · 3 obs

○ 2016-09-08 15:51:18
● 2017-04-03 16:20:46
● 2026-08-10 09:29:16

●NSns-c.ktk.de2017-04-03 → 2026-08-10 · 3 obs

○ 2016-09-08 15:51:18
● 2017-04-03 16:20:46
● 2026-08-10 09:29:16

○NSns0.ktk.de2015-07-24 → 2016-09-08 · 4 obs

● 2015-07-24 23:14:42
● 2016-09-08 15:51:18
○ 2017-04-03 16:20:46
○ 2026-08-10 09:29:16

○NSns1.ktk.de2015-07-24 → 2016-09-08 · 4 obs

● 2015-07-24 23:14:42
● 2016-09-08 15:51:18
○ 2017-04-03 16:20:46
○ 2026-08-10 09:29:16

○MXmx-a.ktk.de2016-09-08 → 2026-04-06 · 5 obs

○ 2016-03-15 20:41:18
● 2016-09-08 15:51:18
● 2026-04-06 12:41:44
○ 2026-06-18 21:07:46
○ 2026-08-10 09:29:16

○MXmx-b.ktk.de2016-09-08 → 2026-04-06 · 5 obs

○ 2016-03-15 20:41:18
● 2016-09-08 15:51:18
● 2026-04-06 12:41:44
○ 2026-06-18 21:07:46
○ 2026-08-10 09:29:16

○MXmx01.rz-online.net2015-07-24 → 2016-03-15 · 4 obs

● 2015-07-24 23:14:42
● 2016-03-15 20:41:18
○ 2016-09-08 15:51:18
○ 2026-08-10 09:29:16

○MXmx02.rz-online.net2015-07-24 → 2016-03-15 · 4 obs

● 2015-07-24 23:14:42
● 2016-03-15 20:41:18
○ 2016-09-08 15:51:18
○ 2026-08-10 09:29:16

○MXmx03.rz-online.net2015-07-24 → 2016-03-15 · 4 obs

● 2015-07-24 23:14:42
● 2016-03-15 20:41:18
○ 2016-09-08 15:51:18
○ 2026-08-10 09:29:16

○A212.7.160.1192015-07-24 → 2015-11-27 · 4 obs

● 2015-07-24 23:14:42
● 2015-11-27 11:30:00
○ 2016-03-15 20:41:18
○ 2026-08-10 09:29:16

○A212.7.160.1322016-03-15 → 2021-10-06 · 5 obs

○ 2015-11-27 11:30:00
● 2016-03-15 20:41:18
● 2021-10-06 01:40:38
○ 2026-03-03 23:52:30
○ 2026-08-10 09:29:16

○A2a02:1628:0:c002::1322021-10-06 → 2021-10-06 · 4 obs

○ 2016-03-15 20:41:18
● 2021-10-06 01:40:38
○ 2026-03-03 23:52:30
○ 2026-08-10 09:29:16

○A2a02:1628:0:c00a::1122026-03-03 → 2026-04-06 · 5 obs

○ 2021-10-06 01:40:38
● 2026-03-03 23:52:30
● 2026-04-06 12:41:44
○ 2026-06-18 21:07:46
○ 2026-08-10 09:29:16

○A82.115.96.1122026-03-03 → 2026-04-06 · 5 obs

○ 2021-10-06 01:40:38
● 2026-03-03 23:52:30
● 2026-04-06 12:41:44
○ 2026-06-18 21:07:46
○ 2026-08-10 09:29:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
ogsid.de	ns-c.ktk.de, ns-b.ktk.io, ns-a.ktk.de	4 records

✅ Authoritative Response

Server:212.7.160.5

NS records: ns-c.ktk.de, ns-b.ktk.io, ns-a.ktk.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ogsid.de (unsigned zone)

⏱️ Timing

Total: 4790ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.115.96.112`
AAAA	1	`2a02:1628:0:c00a::112`
NS	3	`ns-c.ktk.de, ns-a.ktk.de...`
MX	2	`mx-a.ktk.de (pri: 30), mx-b.ktk.de (pri: 30)`
SOA	1	`ns-a.ktk.de hostmaster.noc.ktk.de`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns-c.ktk.de, ns-a.ktk.de, ns-c.ktk.de...)

Analysis

Name Servers

ogsid.de carries NS records delegating to ns-a.ktk.de, ns-c.ktk.de and ns-b.ktk.io.

ogsid.de has at least partial name server overlap with other domains, such as systemceram.de, enm.de, chem-tec.info and two others.

It is common to see these name servers used together with name servers ns.4teachers.de and ns.debeka.de.

ns-a.ktk.de, ns-c.ktk.de and ns-b.ktk.io are three hostnames that each resolve to a pair of IP addresses: ns-a.ktk.de to 212.7.160.5 and 2a02:1628:0:c000::3:5, ns-c.ktk.de to 212.7.160.11 and 2a02:1628:0:c000::3:11, and ns-b.ktk.io to 217.17.16.165 and 2a01:5580:154::165.