cf4u.de - robtex.com

cf4u.de

DNSSEC⚠️ Not signed
A135.125.134.139🇫🇷 OVH135.125.128.0/17
NSns1.domainparking.de ⭐
A5.75.211.71🇩🇪 Hetzner5.75.128.0/17 HETZNER-DC
PTRstatic.71.211.75.5.clients.your-server.de
A137.74.127.129🇫🇷 OVH137.74.0.0/16
NSns2.domainparking.de
A138.201.228.113🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4
PTRns2.domainparking.de
A176.9.15.214🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4
PTRns2.domainparking.de
MXmx.domainparking.de ⭐
A2606:4700:3031::6815:3f2d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A2606:4700:3031::ac43:8fb1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A104.21.63.45Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.67.143.177🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
TXTv=spf1 -all
SOAns1.domainparking.dehostmaster@domainparking.de serial=2020280300

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=1774756497
WOT: SAFE (68/100)

Subdomains

mail.cf4u.de
www.cf4u.de

Same first word

cf4u.de
cf4u.com

Similar names

fc4u.com
4fcu.com
ufc4.com
4fuc.com
4cuf.com

DNS History

15 records (4 active, 11 former)

20162017201820192020202120222023202420252026NSns1.domainparking.dens2.domainparking.dens1.parkingcrew.netns1.sedoparking.comns2.parkingcrew.netns2.sedoparking.comMXmx.domainparking.demail.h-email.netmail.nickstel.comA135.125.134.139185.53.178.6185.53.178.9185.53.179.854.72.9.5172.52.4.91
●NSns1.domainparking.de2026-03-12 → 2026-03-29 · 3 obs
○ 2017-09-21 19:42:50
● 2026-03-12 06:12:28
● 2026-03-29 04:21:50
○NSns1.parkingcrew.net2015-12-07 → 2017-09-21 · 5 obs
○ 2015-09-07 00:06:18
● 2015-12-07 02:36:28
● 2017-09-21 19:42:50
○ 2026-03-12 06:12:28
○ 2026-03-29 04:21:50
○NSns1.sedoparking.com2015-08-01 → 2015-09-07 · 4 obs
● 2015-08-01 16:01:06
● 2015-09-07 00:06:18
○ 2015-12-07 02:36:28
○ 2026-03-29 04:21:50
●NSns2.domainparking.de2026-03-12 → 2026-03-29 · 3 obs
○ 2017-09-21 19:42:50
● 2026-03-12 06:12:28
● 2026-03-29 04:21:50
○NSns2.parkingcrew.net2015-12-07 → 2017-09-21 · 5 obs
○ 2015-09-07 00:06:18
● 2015-12-07 02:36:28
● 2017-09-21 19:42:50
○ 2026-03-12 06:12:28
○ 2026-03-29 04:21:50
○NSns2.sedoparking.com2015-08-01 → 2015-09-07 · 4 obs
● 2015-08-01 16:01:06
● 2015-09-07 00:06:18
○ 2015-12-07 02:36:28
○ 2026-03-29 04:21:50
○MXmail.h-email.net2015-12-07 → 2017-09-21 · 5 obs
○ 2015-09-07 00:06:18
● 2015-12-07 02:36:28
● 2017-09-21 20:43:04
○ 2026-03-12 06:12:28
○ 2026-03-29 04:21:50
○MXmail.nickstel.com2015-08-01 → 2015-09-07 · 4 obs
● 2015-08-01 16:01:06
● 2015-09-07 00:06:18
○ 2015-12-07 02:36:28
○ 2026-03-29 04:21:50
●MXmx.domainparking.de2026-03-12 → 2026-03-29 · 3 obs
○ 2017-09-21 20:43:04
● 2026-03-12 06:12:28
● 2026-03-29 04:21:50
●A135.125.134.1392026-03-12 → 2026-03-29 · 3 obs
○ 2017-09-21 20:43:04
● 2026-03-12 06:12:28
● 2026-03-29 04:21:50
○A185.53.178.62017-07-11 → 2017-09-21 · 5 obs
○ 2017-06-19 05:53:32
● 2017-07-11 11:26:42
● 2017-09-21 20:43:04
○ 2026-03-12 06:12:28
○ 2026-03-29 04:21:50
○A185.53.178.92015-12-07 → 2016-07-03 · 6 obs
○ 2015-09-07 00:06:18
● 2015-12-07 02:36:28
○ 2016-03-22 09:18:28
● 2016-07-03 21:48:26
○ 2017-06-19 05:53:32
○ 2026-03-29 04:21:50
○A185.53.179.82017-06-19 → 2017-06-19 · 4 obs
○ 2016-07-03 21:48:26
● 2017-06-19 05:53:32
○ 2017-07-11 11:26:42
○ 2026-03-29 04:21:50
○A54.72.9.512016-03-22 → 2017-09-09 · 6 obs
○ 2015-12-07 02:36:28
● 2016-03-22 09:18:28
○ 2016-07-03 21:48:26
● 2017-09-09 20:38:40
○ 2017-09-20 03:45:38
○ 2026-03-29 04:21:50
○A72.52.4.912015-08-01 → 2015-09-07 · 4 obs
● 2015-08-01 16:01:06
● 2015-09-07 00:06:18
○ 2015-12-07 02:36:28
○ 2026-03-29 04:21:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
cf4u.dens2.domainparking.de, ns1.domainparking.de-

✅ Authoritative Response

Server:138.201.228.113

NS records: ns2.domainparking.de, ns1.domainparking.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cf4u.de (unsigned zone)

⏱️ Timing

Total: 1357ms | Queries: -

📄 Records

TypeCountSample Data
A1135.125.134.139
NS2ns2.domainparking.de, ns1.domainparking.de
MX1mx.domainparking.de (pri: 25)
TXT1v=spf1 -all
SOA1ns1.domainparking.de hostmaster.domainpa

Analysis

Hierarchy

cf4u.de is a parent of mail.cf4u.de and www.cf4u.de.

IP Addresses

cf4u.de points to IP number 135.125.134.139.

For instance, other host names ltb.at, pauschales.de, theaterunterricht.de, bonprxi.de and hashim.de share IP numbers with cf4u.de.

Name Servers

cf4u.de is delegated to two name servers: ns1.domainparking.de and ns2.domainparking.de.

cf4u.de uses the same name server setup as other domains such as digital-karten.de, srv.ski.de, luendorf.de, www7.snipon.de and upfiles.de.

Host names with two IP numbers:

ns1.domainparking.de points to 5.75.211.71 and 137.74.127.129; ns2.domainparking.de points to 138.201.228.113 and 176.9.15.214.

Mail Servers

cf4u.de is handled by a single mail server, mx.domainparking.de.

cf4u.de shares the same mail server setup as other domains, for instance *.hosts.at, copy-shirt.de, adtarget.de, carp-news.de and www2.4proxy.de.

Host mx.domainparking.de points to four IP numbers: 2606:4700:3031::6815:3f2d, 2606:4700:3031::ac43:8fb1, 104.21.63.45 and 172.67.143.177.