cretschmar.net - robtex.com

cretschmar.net

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::200🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
A217.160.0.11🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSshades04.rzone.de ⭐
A2607:f1c0:fe:53:185:132:34:131🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRshades04.rzone.de
A185.132.34.131🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRshades04.rzone.de
NSdocks20.rzone.de
A2001:8d8:fe:53:5747:2a74:d:20🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRdocks20.rzone.de
A217.160.80.147🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRdocks20.rzone.de
MXsmtpin.rzone.de ⭐
A2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG
PTRsmtpin.rzone.de
A81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG
PTRsmtpin.rzone.de
SOAshades04.rzone.dehostmaster@strato-rz.de 2020-07-11 #25

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1775383822

Subdomains

mail.cretschmar.net

Same first word

cretschmar.net
cretschmar.es
cretschmar.com
cretschmar.de

DNS History

12 records (5 active, 7 former)

2008201020122014201620182020202220242026NSdocks20.rzone.deshades04.rzone.depns.dtag.desecondary000.dtag.netMXsmtpin.rzone.demail.cretschmar.netmforward.dtag.deA2001:8d8:100f:f000::200217.160.0.11195.243.229.662a01:238:20a:202:1086::81.169.145.86
●NSdocks20.rzone.de2026-03-31 → 2026-04-05 · 3 obs
○ 2017-03-20 14:37:12
● 2026-03-31 23:39:46
● 2026-04-05 10:17:50
○NSpns.dtag.de2007-09-19 → 2017-03-20 · 4 obs
● 2007-09-19 21:37:40
● 2017-03-20 14:37:12
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
○NSsecondary000.dtag.net2007-09-19 → 2017-03-20 · 4 obs
● 2007-09-19 21:37:40
● 2017-03-20 14:37:12
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
●NSshades04.rzone.de2026-03-31 → 2026-04-05 · 3 obs
○ 2017-03-20 14:37:12
● 2026-03-31 23:39:46
● 2026-04-05 10:17:50
○MXmail.cretschmar.net2007-09-19 → 2017-03-20 · 4 obs
● 2007-09-19 21:37:40
● 2017-03-20 14:37:12
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
○MXmforward.dtag.de2007-09-19 → 2017-03-20 · 4 obs
● 2007-09-19 21:37:40
● 2017-03-20 14:37:12
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
●MXsmtpin.rzone.de2026-03-31 → 2026-04-05 · 3 obs
○ 2017-03-20 14:37:12
● 2026-03-31 23:39:46
● 2026-04-05 10:17:50
○A195.243.229.662007-09-19 → 2017-03-20 · 4 obs
● 2007-09-19 21:37:40
● 2017-03-20 14:37:12
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
●A2001:8d8:100f:f000::2002026-03-31 → 2026-04-05 · 3 obs
○ 2017-03-20 14:37:12
● 2026-03-31 23:39:46
● 2026-04-05 10:17:50
●A217.160.0.112026-03-31 → 2026-04-05 · 3 obs
○ 2017-03-20 14:37:12
● 2026-03-31 23:39:46
● 2026-04-05 10:17:50
○A2a01:238:20a:202:1086::2026-03-31 → 2026-04-05 · 2 obs
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50
○A81.169.145.862026-03-31 → 2026-04-05 · 2 obs
○ 2026-03-31 23:39:46
○ 2026-04-05 10:17:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
cretschmar.netshades04.rzone.de, docks20.rzone.de-

✅ Authoritative Response

Server:217.160.80.147

NS records: shades04.rzone.de, docks20.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cretschmar.net (unsigned zone)

⏱️ Timing

Total: 619ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.11
AAAA12001:8d8:100f:f000::200
NS2shades04.rzone.de, docks20.rzone.de
MX1smtpin.rzone.de (pri: 5)
SOA1shades04.rzone.de hostmaster.strato-rz.d

Analysis

Hierarchy

The parent of mail.cretschmar.net is cretschmar.net.

IP Addresses

cretschmar.net resolves to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.11.

Other host names, for instance grecogres.org, golf-light.de, voscomptesenligne.com, blenner.com and xn--sachverstndigemainz-owb.de share IP numbers with cretschmar.net.

Name Servers

Two name servers docks20.rzone.de and shades04.rzone.de handle delegation for cretschmar.net.

cretschmar.net uses the same name server setup as other domains, for example stefansporrer.com, freightdallas.com, die-design.de, cenia.de and wcomp.de.

cretschmar.net partially shares name servers with other domains; examples include tcmartin.de, ortu.de, happy-hippo-foto.de, schloss-oefte.net and heavy-vehicles.com.

These name servers are commonly used alongside docks13.rzone.de, shades14.rzone.de, shades08.rzone.de, shades18.rzone.de, docks06.rzone.de, docks05.rzone.de, shades11.rzone.de, shades13.rzone.de, docks08.rzone.de and docks16.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

shades04.rzone.de points to: 2607:f1c0:fe:53:185:132:34:131 and 185.132.34.131

Mail Servers

cretschmar.net is handled by a single mail server, smtpin.rzone.de.

cretschmar.net has the same mail server setup as other domains, including gattenhaus.de, dpjena.de, mocavi.com, ablesung-hamburg.de and nicklas.biz.

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