`coursnicholas.com`

DNSSEC	⚠️ Not signed
A	2a01:238:20a:202:1162::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
		PTR	`wa2.rzone.de`
A	81.169.145.162^{🇩🇪 STRATO81.169.144.0/22 AG}
NS	`docks20.rzone.de` ⭐
		A	2001:8d8:fe:53:5747:2a74:d:20^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
		A	217.160.80.147^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
NS	`shades01.rzone.de`
		A	2607:f1c0:fe:53:185:132:34:128^{🇺🇸 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	`shades01.rzone.de`
		A	185.132.34.128^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades01.rzone.de`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtp.rzone.de`
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`
SOA	`docks20.rzone.de`hostmaster@strato-rz.de 2020-06-03 #56

`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=1778527971

Subdomains

mailspool.coursnicholas.com

DNS History

7 records (5 active, 2 former)

●NSdocks20.rzone.de2015-08-15 → 2026-05-11 · 2 obs

● 2015-08-15 15:18:04
● 2026-05-11 19:59:10

●NSshades01.rzone.de2015-08-15 → 2026-05-11 · 2 obs

● 2015-08-15 15:18:04
● 2026-05-11 19:59:10

●MXsmtp.rzone.de2015-08-15 → 2026-05-11 · 2 obs

● 2015-08-15 15:18:04
● 2026-05-11 19:59:10

○A2a01:238:20a:202:1094::2015-08-15 → 2017-12-25 · 3 obs

● 2015-08-15 15:18:04
● 2017-12-25 22:57:40
○ 2026-05-11 19:59:10

●A2a01:238:20a:202:1162::2026-05-11 → 2026-05-11 · 2 obs

○ 2017-12-25 22:57:40
● 2026-05-11 19:59:10

●A81.169.145.1622026-05-11 → 2026-05-11 · 2 obs

○ 2017-12-25 22:57:40
● 2026-05-11 19:59:10

○A81.169.145.942015-08-15 → 2017-12-25 · 3 obs

● 2015-08-15 15:18:04
● 2017-12-25 22:57:40
○ 2026-05-11 19:59:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
coursnicholas.com	shades01.rzone.de, docks20.rzone.de	-

✅ Authoritative Response

Server:185.132.34.128

NS records: shades01.rzone.de, docks20.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursnicholas.com (unsigned zone)

⏱️ Timing

Total: 1483ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.145.162`
AAAA	1	`2a01:238:20a:202:1162::`
NS	2	`docks20.rzone.de, shades01.rzone.de`
MX	1	`smtp.rzone.de (pri: 5)`
SOA	1	`docks20.rzone.de hostmaster.strato-rz.de`

Analysis

Hierarchy

coursnicholas.com is a parent of mailspool.coursnicholas.com.

IP Addresses

coursnicholas.com points to two IP numbers: 2a01:238:20a:202:1162:: and 81.169.145.162.

Other host names such as eichgraben.de, leichum-gmbh.de, myoparo.de, hammerclub.de and m-a.info share IP numbers with coursnicholas.com.

Name Servers

coursnicholas.com is delegated to two name servers: docks20.rzone.de and shades01.rzone.de.

coursnicholas.com uses the same name server setup as other domains, including carpentarius.com, heller-recreation.com, safetyculture.de, svp-la.de and fatfrog.de.

At least part of the name servers for coursnicholas.com are shared with other domains, for instance casa-ag.de, frank-ernst.net, afarb.fr, jgv-westerwald.com and grossetec.de.

these name servers are commonly used with the name servers shades05.rzone.de, shades02.rzone.de, shades09.rzone.de, shades11.rzone.de, shades04.rzone.de, shades12.rzone.de, docks01.rzone.de, docks02.rzone.de, docks16.rzone.de and shades18.rzone.de.

Host names with two IP numbers:

docks20.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:20 and 217.160.80.147.

shades01.rzone.de points to 2607:f1c0:fe:53:185:132:34:128 and 185.132.34.128.

Mail Servers

The mail server for coursnicholas.com is smtp.rzone.de.

coursnicholas.com uses the same mail server setup as other domains, for instance masqito.com, blogdebori.es, eipo.es, transferstuff.com and lavue.eu.

Hostname smtp.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.

coursnicholas.com - robtex.com