lehren.de - robtex.com

lehren.de

DNSSEC⚠️ Not signed
NSdns-b1.cronon.de ⭐
A2a01:238:e100:f003::110🇩🇪 CRONON-BERLIN-AS2a01:238:e000::/35 Cronon AG, Berlin
PTRdns-b1.cronon.de
A192.166.192.224🇩🇪 CRONON-BERLIN-AS192.166.192.0/21 Cronon AG, Berlin
PTRdns-b1.cronon.de
NSdns-b2.cronon.de
A2a01:238:e100:f303::120🇩🇪 CRONON-BERLIN-AS2a01:238:e000::/35 Cronon AG, Berlin
PTRdns-b2.cronon.de
A192.166.196.224🇩🇪 CRONON-BERLIN-AS192.166.192.0/21 Cronon AG, Berlin
PTRdns-b2.cronon.de
NSdns-hh1.cronon.de
A2a01:238:cca:101::16🇩🇪 CRONON-BERLIN-AS2a01:238:cca::/48
PTRdns-hh1.cronon.de
A81.169.191.16🇩🇪 CRONON-BERLIN-AS81.169.191.0/24
PTRdns-hh1.cronon.de
MXwww.lehren.de ⭐
A195.122.141.160🇩🇪 AS3356195.122.128.0/18 Level 3 RIPE block
SOAdns-b1.cronon.depostmaster@cronon.de 2015-06-08 #1

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1774547244

Subdomains

www.lehren.de

Same first word

lehren.de
lehren.co
lehren.tv
lehren.ch
lehren.com

Similar names

lehner.ca
lehner.at
hernel.net
lehner.bz
lehner.biz
lehner.ch
lehner.com
lehner.eu
lehner.cz
lehner.tv
lehner.org
lerhen.com
enehrl.edu.mx
renhel.com.au
lehner.be
lehner.de
herlen.us
lehner.co.uk
lehner.homes
lehner.co
lenher.com

DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026NSdns-b1.cronon.dedns-b2.cronon.dedns-hh1.cronon.dealhazred.hsd.denyarlathotep.hsd.denyarlathotep2.hsd.deMXwww.lehren.de
○NSalhazred.hsd.de2015-05-11 → 2015-05-11 · 3 obs
● 2015-05-11 01:25:46
○ 2015-10-12 06:35:12
○ 2026-03-26 17:48:16
●NSdns-b1.cronon.de2015-10-12 → 2026-03-26 · 3 obs
○ 2015-05-11 01:25:46
● 2015-10-12 06:35:12
● 2026-03-26 17:48:16
●NSdns-b2.cronon.de2015-10-12 → 2026-03-26 · 3 obs
○ 2015-05-11 01:25:46
● 2015-10-12 06:35:12
● 2026-03-26 17:48:16
●NSdns-hh1.cronon.de2015-10-12 → 2026-03-26 · 3 obs
○ 2015-05-11 01:25:46
● 2015-10-12 06:35:12
● 2026-03-26 17:48:16
○NSnyarlathotep.hsd.de2015-05-11 → 2015-05-11 · 3 obs
● 2015-05-11 01:25:46
○ 2015-10-12 06:35:12
○ 2026-03-26 17:48:16
○NSnyarlathotep2.hsd.de2015-05-11 → 2015-05-11 · 3 obs
● 2015-05-11 01:25:46
○ 2015-10-12 06:35:12
○ 2026-03-26 17:48:16
●MXwww.lehren.de2015-05-11 → 2026-03-26 · 2 obs
● 2015-05-11 01:25:46
● 2026-03-26 17:48:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
lehren.dedns-b2.cronon.de, dns-hh1.cronon.de, dns-b1.cronon.de6 records

✅ Authoritative Response

Server:192.166.192.224

NS records: dns-b2.cronon.de, dns-hh1.cronon.de, dns-b1.cronon.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lehren.de (unsigned zone)

⏱️ Timing

Total: 689ms | Queries: -

📄 Records

TypeCountSample Data
NS3dns-b2.cronon.de, dns-b1.cronon.de...
MX1www.lehren.de (pri: 100)
SOA1dns-b1.cronon.de postmaster.cronon.de

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (dns-hh1.cronon.de, dns-b2.cronon.de, dns-b1.cronon.de...)

Analysis

Hierarchy

The parent of www.lehren.de is lehren.de.

Name Servers

lehren.de is delegated to three name servers: dns-b1.cronon.de, dns-b2.cronon.de and dns-hh1.cronon.de.

lehren.de at least partially shares name servers with other domains, for example crononisp.biz, free-hidrive.de, strato-livepages.at, netzstrom.de and truppe.de.

Host names with two IP numbers:

dns-b1.cronon.de points to 2a01:238:e100:f003::110 and 192.166.192.224

dns-b2.cronon.de points to 2a01:238:e100:f303::120 and 192.166.196.224

dns-hh1.cronon.de points to 2a01:238:cca:101::16 and 81.169.191.16

Mail Servers

The www.lehren.de mail server handles lehren.de.

www.lehren.de points to a single IP number: 195.122.141.160.