`michael-duerr.com`

DNSSEC	⚠️ Not signed
A	2a01:238:20a:202:1086::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
		PTR	`w86.rzone.de`
A	81.169.145.86^{🇩🇪 STRATO81.169.144.0/22 AG}
NS	`docks17.rzone.de` ⭐
		A	2001:8d8:fe:53:5747:2a74:d:17^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks17.rzone.de`
		A	217.160.80.144^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks17.rzone.de`
NS	`shades10.rzone.de`
		A	2607:f1c0:fe:53:185:132:34:137^{🇺🇸 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	`shades10.rzone.de`
		A	185.132.34.137^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades10.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	`docks17.rzone.de`hostmaster@strato-rz.de 2020-06-09 #14

`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=1778424886

Subdomains

smtp.michael-duerr.com

Same first word

michael-duerr.com

DNS History

8 records (5 active, 3 former)

●NSdocks17.rzone.de2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 07:04:02
● 2026-05-10 14:58:18

●NSshades10.rzone.de2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 07:04:02
● 2026-05-10 14:58:18

○MXsmtp.rzone.de2015-06-01 → 2015-10-15 · 4 obs

● 2015-06-01 07:04:02
● 2015-10-15 23:46:32
○ 2015-12-21 07:15:28
○ 2026-05-10 14:58:18

●MXsmtpin.rzone.de2015-12-21 → 2026-05-10 · 3 obs

○ 2015-10-15 23:46:32
● 2015-12-21 07:15:28
● 2026-05-10 14:58:18

○A2a01:238:20a:202:1066::2015-06-01 → 2017-07-07 · 4 obs

● 2015-06-01 07:04:02
● 2017-07-07 04:54:08
○ 2026-05-10 08:18:36
○ 2026-05-10 14:58:18

●A2a01:238:20a:202:1086::2026-05-10 → 2026-05-10 · 3 obs

○ 2017-07-07 04:54:08
● 2026-05-10 08:18:36
● 2026-05-10 14:58:18

○A81.169.145.662015-06-01 → 2017-07-07 · 4 obs

● 2015-06-01 07:04:02
● 2017-07-07 04:54:08
○ 2026-05-10 08:18:36
○ 2026-05-10 14:58:18

●A81.169.145.862026-05-10 → 2026-05-10 · 3 obs

○ 2017-07-07 04:54:08
● 2026-05-10 08:18:36
● 2026-05-10 14:58:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...	-
michael-duerr.com	shades10.rzone.de, docks17.rzone.de	-

✅ Authoritative Response

Server:217.160.80.144

NS records: shades10.rzone.de, docks17.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for michael-duerr.com (unsigned zone)

⏱️ Timing

Total: 1042ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.145.86`
AAAA	1	`2a01:238:20a:202:1086::`
NS	2	`docks17.rzone.de, shades10.rzone.de`
MX	1	`smtpin.rzone.de (pri: 5)`
SOA	1	`docks17.rzone.de hostmaster.strato-rz.de`

Analysis

Hierarchy

michael-duerr.com is the parent of smtp.michael-duerr.com.

IP Addresses

michael-duerr.com resolves to two IPs: 2a01:238:20a:202:1086:: and 81.169.145.86.

other host names for instance das-buero-fuer-gestaltung.de, jair.de, ncbs.eu, ron-justin.de and tierische.de share IP numbers with michael-duerr.com.

Name Servers

michael-duerr.com is delegated to two name servers: docks17.rzone.de and shades10.rzone.de.

michael-duerr.com shares the same name server setup as other domains, for example deutsche-muslime.de, foundmyroom.com, pimp-your-heizung.com, hedbarber.com and roggow.org.

michael-duerr.com at least partially shares name servers with other domains, for instance aufbauseminare-augsburg.de, struve.me, kreami.de, gipsermaschienen.de and salzlandcenter.com.

These name servers are often used together with the name servers shades09.rzone.de, shades11.rzone.de, shades15.rzone.de, shades08.rzone.de, docks02.rzone.de, docks11.rzone.de, docks20.rzone.de, docks04.rzone.de, docks05.rzone.de and docks19.rzone.de.

Host names with two IP numbers:

docks17.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:17 and 217.160.80.144

shades10.rzone.de points to 2607:f1c0:fe:53:185:132:34:137 and 185.132.34.137

Mail Servers

michael-duerr.com is handled by a single mail server, smtpin.rzone.de.

michael-duerr.com shares the same mail server setup as other domains, for instance sch-net.org, imagoberlin.de, blueway.eu, baumgaertner-network.de and svtuning.de.

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

michael-duerr.com - robtex.com