grefrath.de - robtex.com

grefrath.de

DNSSEC⚠️ Not signed
A194.77.238.183🇩🇪 KRZN-AS194.77.238.0/23 Kommunales Rechenzentrum Niederrhein KRZN
PTRrevproxy-vip.krzn.de
A194.77.238.184🇩🇪 KRZN-AS194.77.238.0/23 Kommunales Rechenzentrum Niederrhein KRZN
NSdns.krzn.de ⭐
A194.77.253.129🇩🇪 KRZN-AS194.77.248.0/21 Kommunales Rechenzentrum Niederrhein KRZN
PTRdns.krzn.de
NSpns.dtag.de
A2003:40:8000::100🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space
PTRpns.dtag.de
A194.25.0.125🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider
PTRpns.dtag.de
NSsecondary004.dtag.net
A2a00:fa8:3:0:100:0:4:1🇩🇪 NETUSE2a00:fa8:3::/48 NSDTAG
PTRsecondary004.dtag.net
A195.244.245.27🇩🇪 NETUSE195.244.245.0/24
PTRsecondary004.dtag.net
MXmail-in.as-scan.de ⭐
A194.77.237.42🇩🇪 KRZN-AS194.77.236.0/23 Kommunales Rechenzentrum Niederrhein KRZN
PTRm18050688.krzn.de
A194.77.253.21🇩🇪 KRZN-AS194.77.248.0/21 Kommunales Rechenzentrum Niederrhein KRZN
PTRfilter6.as-scan.de
MXmx2.as-scan.de(50)
A194.77.237.42🇩🇪 KRZN-AS194.77.236.0/23 Kommunales Rechenzentrum Niederrhein KRZN
PTRm18050688.krzn.de
A194.77.253.21🇩🇪 KRZN-AS194.77.248.0/21 Kommunales Rechenzentrum Niederrhein KRZN
PTRfilter6.as-scan.de
TXT_telesec-domain-validation=271643_2019-05-29_HSIw0XW6Kwwc6Gzl2DjXmqLoSFBt66xL...
TXTapple-domain-verification=G3p7G44OShDr4ETO
TXTv=spf1 mx a ptr ip4:194.77.253.0/24 ip4:194.77.250.0/24 ip4:194.77.237.0/24 ~all
TXT_telesec-domain-validation=304272_2022-05-12_ug7QpGk69304ZShW5ZCafIokxMHTgY3a...
SOAdns.krzn.dejoachim@krzn.de 2025-10-16 #4

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=1774806826
WOT: SAFE (63/100)

Subdomains

ris.grefrath.de

Same first word

grefrath.org
grefrath.de

DNS History

12 records (7 active, 5 former)

20162017201820192020202120222023202420252026NSdns.krzn.depns.dtag.desecondary004.dtag.netMXmail-in.as-scan.demx2.as-scan.despamfilter1.krzn.despamfilter2.krzn.deA194.77.238.183194.77.238.184194.77.236.19194.77.250.199194.77.250.200
●NSdns.krzn.de2015-07-23 → 2026-03-29 · 2 obs
● 2015-07-23 04:50:32
● 2026-03-29 17:58:40
●NSpns.dtag.de2015-07-23 → 2026-03-29 · 2 obs
● 2015-07-23 04:50:32
● 2026-03-29 17:58:40
●NSsecondary004.dtag.net2015-07-23 → 2026-03-29 · 2 obs
● 2015-07-23 04:50:32
● 2026-03-29 17:58:40
●MXmail-in.as-scan.de2016-07-14 → 2026-03-29 · 3 obs
○ 2016-03-11 12:24:04
● 2016-07-14 16:28:36
● 2026-03-29 17:58:40
●MXmx2.as-scan.de2016-07-14 → 2026-03-29 · 3 obs
○ 2016-03-11 12:24:04
● 2016-07-14 16:28:36
● 2026-03-29 17:58:40
○MXspamfilter1.krzn.de2015-07-23 → 2016-03-11 · 4 obs
● 2015-07-23 04:50:32
● 2016-03-11 12:24:04
○ 2016-07-14 16:28:36
○ 2026-03-29 17:58:40
○MXspamfilter2.krzn.de2015-07-23 → 2016-03-11 · 4 obs
● 2015-07-23 04:50:32
● 2016-03-11 12:24:04
○ 2016-07-14 16:28:36
○ 2026-03-29 17:58:40
○A194.77.236.192017-04-20 → 2017-04-20 · 3 obs
○ 2016-07-14 16:28:36
● 2017-04-20 16:48:54
○ 2026-03-29 17:58:40
●A194.77.238.1832026-03-29 → 2026-03-29 · 2 obs
○ 2017-04-20 16:48:54
● 2026-03-29 17:58:40
●A194.77.238.1842026-03-29 → 2026-03-29 · 2 obs
○ 2017-04-20 16:48:54
● 2026-03-29 17:58:40
○A194.77.250.1992015-11-22 → 2016-07-14 · 5 obs
○ 2015-07-23 04:50:32
● 2015-11-22 01:34:26
● 2016-07-14 16:28:36
○ 2017-04-20 16:48:54
○ 2026-03-29 17:58:40
○A194.77.250.2002015-07-23 → 2015-07-23 · 3 obs
● 2015-07-23 04:50:32
○ 2015-11-22 01:34:26
○ 2026-03-29 17:58:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
grefrath.dedns.krzn.de, secondary004.dtag.net, pns.dtag.de3 records

✅ Authoritative Response

Server:195.244.245.27

NS records: dns.krzn.de, secondary004.dtag.net, pns.dtag.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for grefrath.de (unsigned zone)

⏱️ Timing

Total: 992ms | Queries: -

📄 Records

TypeCountSample Data
A2194.77.238.183, 194.77.238.184
NS3secondary004.dtag.net, dns.krzn.de...
MX2mail-in.as-scan.de (pri: 30), mx2.as-scan.de (pri: 50)
TXT4apple-domain-verification=G3p7G44OShDr4E, _telesec-domain-validation=304272_2022-0...
SOA1dns.krzn.de joachim.krzn.de

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (pns.dtag.de, dns.krzn.de, pns.dtag.de)

Analysis

Hierarchy

The parent of ris.grefrath.de is grefrath.de.

IP Addresses

grefrath.de points to two IP numbers: 194.77.238.183 and 194.77.238.184.

Other host names such as toenisvorst.info, bedburg-hau.de, vsp-nrw.de, dinslaken.tv and kreis-kleve.de share IPs with grefrath.de.

Name Servers

grefrath.de is delegated to three name servers: pns.dtag.de, dns.krzn.de and secondary004.dtag.net.

grefrath.de at least partially shares name servers with other domains, for instance airport-dusseldorf.eu, trusted-post.com, 224.217.in-addr.arpa, mygenerali.de and teeontime.es.

these name servers are commonly used with secondary006.dtag.net, ns1.telekom.net, secondary007.dtag.net, dnsx2306.huk-coburg.de, dns1.telekom.de, dns2.telekom.de and ns0.niedersachsen.com.

Host names with two IP numbers:

pns.dtag.de points to: 2003:40:8000::100 and 194.25.0.125.

secondary004.dtag.net points to: 2a00:fa8:3:0:100:0:4:1 and 195.244.245.27.

Host names with one IP number:

dns.krzn.de points to: 194.77.253.129.

Mail Servers

grefrath.de is handled by two mail servers: mail-in.as-scan.de and mx2.as-scan.de.

The mail server setup for grefrath.de matches that of other domains, for instance formulare-extern.de, wfg-kevelaer.de, geldern.net, stadt-rees.de and dinslaken-live.com.

grefrath.de shares some mail servers with other domains, at least partially, for example kindergarten-luettelbracht.de, kreis-wesel.net, grundschule-born.de and kamp-lintfort.de.

Host names with two IP numbers:

mail-in.as-scan.de points to 194.77.237.42 and 194.77.253.21.

mx2.as-scan.de points to 194.77.237.42 and 194.77.253.21.

Host names pointing to 194.77.237.42: mail-in.as-scan.de and mx2.as-scan.de.

Host names pointing to 194.77.253.21: mail-in.as-scan.de and mx2.as-scan.de.