`digital-mastery.de`

DNSSEC	⚠️ Not signed
A	2a02:420:0:10::400^{🇩🇪 NETBUILD-AS2a02:420::/29 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
		PTR	`hosting03.nbgo.de`
A	185.146.238.132^{🇩🇪 NETBUILD-AS185.146.236.0/22 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
NS	`pri-h03.nbgo.de` ⭐
		A	2a02:420:0:10::400^{🇩🇪 NETBUILD-AS2a02:420::/29 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
			PTR	`hosting03.nbgo.de`
		A	185.146.238.132^{🇩🇪 NETBUILD-AS185.146.236.0/22 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
			PTR	`hosting03.nbgo.de`
NS	`sec-dns01.nbgo.de`
		A	2a02:420:0:10::2^{🇩🇪 NETBUILD-AS2a02:420::/29 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
		A	185.146.238.254^{🇩🇪 NETBUILD-AS185.146.236.0/22 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
MX	`mail.digital-mastery.de` ⭐
		A	2a02:420:0:10::400^{🇩🇪 NETBUILD-AS2a02:420::/29 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
			PTR	`hosting03.nbgo.de`
		A	185.146.238.132^{🇩🇪 NETBUILD-AS185.146.236.0/22 Net-Build GmbH Alfred-Nobel-Allee 38 66793 Saarwellingen Germany}
			PTR	`hosting03.nbgo.de`
TXT	`v=spf1 +a +mx +a:hosting03.nbgo.de -all`
SOA	`pri-h03.nbgo.de`cf@digital-mastery.de 2026-03-24 #7

`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=1777280468

WOT: SAFE (60/100)

Subdomains

mail.digital-mastery.de

Same first word

digital-mastery.de

DNS History

8 records (5 active, 3 former)

○NSns1.net-build.de2015-04-26 → 2019-04-05 · 4 obs

● 2015-04-26 01:59:52
● 2019-04-05 16:43:26
○ 2026-02-22 07:12:50
○ 2026-04-27 09:29:54

○NSns2.net-build.de2015-04-26 → 2019-04-05 · 4 obs

● 2015-04-26 01:59:52
● 2019-04-05 16:43:26
○ 2026-02-22 07:12:50
○ 2026-04-27 09:29:54

●NSpri-h03.nbgo.de2026-02-22 → 2026-04-27 · 3 obs

○ 2019-04-05 16:43:26
● 2026-02-22 07:12:50
● 2026-04-27 09:29:54

●NSsec-dns01.nbgo.de2026-02-22 → 2026-04-27 · 3 obs

○ 2019-04-05 16:43:26
● 2026-02-22 07:12:50
● 2026-04-27 09:29:54

●MXmail.digital-mastery.de2015-04-26 → 2026-04-27 · 2 obs

● 2015-04-26 01:59:52
● 2026-04-27 09:29:54

●A185.146.238.1322026-02-22 → 2026-04-27 · 3 obs

○ 2019-04-05 16:43:26
● 2026-02-22 07:12:50
● 2026-04-27 09:29:54

●A2a02:420:0:10::4002026-02-22 → 2026-04-27 · 3 obs

○ 2019-04-05 16:43:26
● 2026-02-22 07:12:50
● 2026-04-27 09:29:54

○A87.237.121.1352015-04-26 → 2019-04-05 · 4 obs

● 2015-04-26 01:59:52
● 2019-04-05 16:43:26
○ 2026-02-22 07:12:50
○ 2026-04-27 09:29:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
digital-mastery.de	pri-h03.nbgo.de, sec-dns01.nbgo.de	-

✅ Authoritative Response

Server:185.146.238.132

NS records: pri-h03.nbgo.de, sec-dns01.nbgo.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for digital-mastery.de (unsigned zone)

⏱️ Timing

Total: 2229ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.146.238.132`
AAAA	1	`2a02:420:0:10::400`
NS	2	`sec-dns01.nbgo.de, pri-h03.nbgo.de`
MX	1	`mail.digital-mastery.de (pri: 10)`
TXT	1	`v=spf1 +a +mx +a:hosting03.nbgo.de -all`
SOA	1	`pri-h03.nbgo.de cf.digital-mastery.de`

Analysis

Hierarchy

digital-mastery.de is the parent of mail.digital-mastery.de.

IP Addresses

digital-mastery.de points to two IPs: 2a02:420:0:10::400 and 185.146.238.132.

Other host names including mail.kunst-online.net, hamberg.de, signaltec.com, mail.flyer-machine.de and mail.solarstadtwerker.com share IP numbers with digital-mastery.de.

Name Servers

digital-mastery.de's delegation uses two name servers, pri-h03.nbgo.de and sec-dns01.nbgo.de.

digital-mastery.de shares the same name server setup as other domains, for example hamberg.de, signaltec.com, vangloor.com, klat-system.de and svbadcamberg1921.de.

digital-mastery.de at least partially shares name servers with other domains, including holzbau-fehmarn.de, svenja-neumann-lohse.de, schauhoer-verlag.de, stankozi.de and pixeltuning.net.

These name servers are typically used together with the name servers pri-h04.nbgo.de, pri-r01.nbgo.de, pri-h2011.nbgo.de, pri-h05.nbgo.de, pri-h06.nbgo.de, pri-h08.nbgo.de, pri-h02.nbgo.de, pri-h01.nbgo.de, gate01.scgateway.de and pri-h10.nbgo.de.

Host names with two IPs:

pri-h03.nbgo.de points to: 2a02:420:0:10::400 and 185.146.238.132

sec-dns01.nbgo.de points to: 2a02:420:0:10::2 and 185.146.238.254

Mail Servers

digital-mastery.de is handled by a single mail server, mail.digital-mastery.de.

mail.digital-mastery.de points to two IPs: 2a02:420:0:10::400 and 185.146.238.132.

digital-mastery.de - robtex.com