`security-academy.de`

DNSSEC	⚠️ Not signed
NS	`ns2.ernw.de` ⭐
		A	2a03:a920:1000:100a:8ce9:e6ff:fecf:93cb^{🇩🇪 ERNW-GMBH2a03:a920::/32 ERNW Enno Rey Netzwerke GmbH}
			PTR	`ns2.ernw.de`
		A	185.144.93.68^{🇩🇪 ERNW-GMBH185.144.92.0/22 ERNW Enno Rey Netzwerke GmbH}
			PTR	`ns2.ernw.de`
NS	`ns3.ernw.de`
		A	2a03:a920:1000:100a:cca8:feff:fe58:fa48^{🇩🇪 ERNW-GMBH2a03:a920::/32 ERNW Enno Rey Netzwerke GmbH}
			PTR	`ns3.ernw.de`
		A	185.144.93.69^{🇩🇪 ERNW-GMBH185.144.92.0/22 ERNW Enno Rey Netzwerke GmbH}
			PTR	`ns3.ernw.de`
TXT	`v=spf1 -all`
SOA	`ns2.ernw.de`hostmaster@ernw.de 2024-08-08 #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=1775016951

Same first word

security-academy.de

security-academy.ch

DNS History

8 records (2 active, 6 former)

○NSns.oberberg-online.de2015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

●NSns2.ernw.de2026-04-01 → 2026-04-01 · 3 obs

○ 2018-08-16 02:20:36
● 2026-04-01 04:36:28
● 2026-04-01 04:36:30

○NSns2.oberberg-online.de2015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

●NSns3.ernw.de2026-04-01 → 2026-04-01 · 3 obs

○ 2018-08-16 02:20:36
● 2026-04-01 04:36:28
● 2026-04-01 04:36:30

○NSns3.oberberg-online.de2015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

○MXmail.security-academy.de2015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

○MXmx20.oberberg.net2015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

○A195.27.239.772015-07-21 → 2018-08-16 · 4 obs

● 2015-07-21 12:16:28
● 2018-08-16 02:20:36
○ 2026-04-01 04:36:28
○ 2026-04-01 04:36:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
security-academy.de	ns3.ernw.de, ns2.ernw.de	4 records

✅ Authoritative Response

Server:185.144.93.68

NS records: ns3.ernw.de, ns2.ernw.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for security-academy.de (unsigned zone)

⏱️ Timing

Total: 861ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.ernw.de, ns3.ernw.de`
TXT	1	`v=spf1 -all`
SOA	1	`ns2.ernw.de hostmaster.ernw.de`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.ernw.de, ns3.ernw.de, ns2.ernw.de...)

Analysis

Name Servers

security-academy.de is delegated to two name servers: ns2.ernw.de and ns3.ernw.de.

security-academy.de uses the same name server setup as other domains, including ipv6secsummit.com, cisco-security.org, ipv6secsummit.de, tr00pers.de and troopers.net.

Host names with two IP numbers:

ns2.ernw.de points to 2a03:a920:1000:100a:8ce9:e6ff:fecf:93cb and 185.144.93.68.

ns3.ernw.de points to 2a03:a920:1000:100a:cca8:feff:fe58:fa48 and 185.144.93.69.

security-academy.de - robtex.com