`masterclass-coach.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::200^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com`
A	217.160.0.54^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`shades02.rzone.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:129^{🇺🇸 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	`shades02.rzone.de`
		A	185.132.34.129^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades02.rzone.de`
NS	`docks12.rzone.de`
		A	2001:8d8:fe:53:5747:2a74:d:12^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks12.rzone.de`
		A	217.160.80.139^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks12.rzone.de`
MX	`smtpin.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtpin.rzone.de`
SOA	`shades02.rzone.de`hostmaster@strato-rz.de 2025-09-16 #26

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774876632

Same first word

masterclass-coach.com

DNS History

5 records (5 active, 0 former)

●NSdocks12.rzone.de2026-02-17 → 2026-03-30 · 2 obs

● 2026-02-17 12:50:42
● 2026-03-30 13:31:34

●NSshades02.rzone.de2026-02-17 → 2026-03-30 · 2 obs

● 2026-02-17 12:50:42
● 2026-03-30 13:31:34

●MXsmtpin.rzone.de2026-02-17 → 2026-03-30 · 2 obs

● 2026-02-17 12:50:42
● 2026-03-30 13:31:34

●A2001:8d8:100f:f000::2002026-02-17 → 2026-03-30 · 2 obs

● 2026-02-17 12:50:42
● 2026-03-30 13:31:34

●A217.160.0.542026-02-17 → 2026-03-30 · 2 obs

● 2026-02-17 12:50:42
● 2026-03-30 13:31:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net...	-
masterclass-coach.com	shades02.rzone.de, docks12.rzone.de	-

✅ Authoritative Response

Server:217.160.80.139

NS records: shades02.rzone.de, docks12.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterclass-coach.com (unsigned zone)

⏱️ Timing

Total: 560ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.54`
AAAA	1	`2001:8d8:100f:f000::200`
NS	2	`docks12.rzone.de, shades02.rzone.de`
MX	1	`smtpin.rzone.de (pri: 5)`
SOA	1	`shades02.rzone.de hostmaster.strato-rz.d`

Analysis

IP Addresses

masterclass-coach.com resolves to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.54.

Other host names, for instance slim-ondernemen.nl, j-dannecker.de, v-office-cms.de, hopecity.co.uk and cubecouch.com share IP numbers with masterclass-coach.com.

Name Servers

masterclass-coach.com has two name servers: docks12.rzone.de and shades02.rzone.de.

masterclass-coach.com shares the same name server setup as other domains, for example zersen.de, uc-tools.eu, privateid.org, gunterberger.de and 12girls.de.

masterclass-coach.com shares some name servers with other domains, for example gvxlx.de, kitter.de, movmood.com, kampfkunst.international and bowier.com.

these name servers are often used with docks03.rzone.de, docks18.rzone.de, shades19.rzone.de, docks02.rzone.de, shades03.rzone.de, shades08.rzone.de, shades10.rzone.de, shades18.rzone.de, docks07.rzone.de and shades06.rzone.de.

Host names with two IP numbers:

docks12.rzone.de points to: 2001:8d8:fe:53:5747:2a74:d:12 and 217.160.80.139; shades02.rzone.de points to: 2607:f1c0:fe:53:185:132:34:129 and 185.132.34.129.

Mail Servers

masterclass-coach.com is handled by a single mail server, smtpin.rzone.de.

masterclass-coach.com shares the mail server setup with other domains, for example treus.de, wboo.org, bannwaldgang.de, even-online.net and webearfruit.com.

smtpin.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.

masterclass-coach.com - robtex.com