cdu-lu.de - robtex.com

cdu-lu.de

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::237🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-0237.elastic-ssl.ui-r.com
A217.160.0.244🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSns1016.ui-dns.biz ⭐
A2001:8d8:fe:53:0:d9a0:5110:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1016.ui-dns.biz
A217.160.81.16🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1016.ui-dns.biz
NSns1035.ui-dns.org
A2001:8d8:fe:53:0:d9a0:5323:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1035.ui-dns.org
A217.160.83.35🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1035.ui-dns.org
NSns1056.ui-dns.de
A2607:f1c0:fe:53:185:132:32:56🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1056.ui-dns.de
A217.160.80.56🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1056.ui-dns.de
NSns1057.ui-dns.com
A2001:8d8:fe:53:0:d9a0:5239:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1057.ui-dns.com
A217.160.82.57🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1057.ui-dns.com
MXmail.cdu-lu.de ⭐
A24.134.0.225🇩🇪 VODANET24.134.0.0/16 Vodafone-gesamt
PTRmail.cdu-lu.de
TXTv=spf1 +a +mx -all
SOAns1016.ui-dns.bizhostmaster@1and1.com 2017-04-28 #14

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=1778813286
WOT: SAFE (68/100)

Subdomains

mail.cdu-lu.de
www.cdu-lu.de

Same first word

cdu-lu.de

DNS History

15 records (7 active, 8 former)

20162017201820192020202120222023202420252026NSns1016.ui-dns.bizns1035.ui-dns.orgns1056.ui-dns.dens1057.ui-dns.comns.schlund.dens2.schlund.deMXmail.cdu-lu.demx00.kundenserver.demx00.schlund.demx01.kundenserver.demx01.schlund.deA2001:8d8:100f:f000::237217.160.0.244217.160.231.19082.165.78.232
○NSns.schlund.de2015-06-14 → 2017-01-09 · 4 obs
● 2015-06-14 21:11:22
● 2017-01-09 01:43:48
○ 2018-09-07 23:13:28
○ 2026-05-15 02:51:02
●NSns1016.ui-dns.biz2018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
●NSns1035.ui-dns.org2018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
●NSns1056.ui-dns.de2018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
●NSns1057.ui-dns.com2018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
○NSns2.schlund.de2015-06-14 → 2017-01-09 · 4 obs
● 2015-06-14 21:11:22
● 2017-01-09 01:43:48
○ 2018-09-07 23:13:28
○ 2026-05-15 02:51:02
●MXmail.cdu-lu.de2026-03-04 → 2026-05-15 · 3 obs
○ 2018-09-07 23:13:28
● 2026-03-04 11:05:06
● 2026-05-15 02:51:02
○MXmx00.kundenserver.de2018-09-07 → 2018-09-07 · 4 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
○ 2026-03-04 11:05:06
○ 2026-05-15 02:51:02
○MXmx00.schlund.de2015-06-14 → 2017-01-09 · 4 obs
● 2015-06-14 21:11:22
● 2017-01-09 01:43:48
○ 2018-09-07 23:13:28
○ 2026-05-15 02:51:02
○MXmx01.kundenserver.de2018-09-07 → 2018-09-07 · 4 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
○ 2026-03-04 11:05:06
○ 2026-05-15 02:51:02
○MXmx01.schlund.de2015-06-14 → 2017-01-09 · 4 obs
● 2015-06-14 21:11:22
● 2017-01-09 01:43:48
○ 2018-09-07 23:13:28
○ 2026-05-15 02:51:02
●A2001:8d8:100f:f000::2372018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
●A217.160.0.2442018-09-07 → 2026-05-15 · 3 obs
○ 2017-01-09 01:43:48
● 2018-09-07 23:13:28
● 2026-05-15 02:51:02
○A217.160.231.1902016-04-29 → 2017-01-09 · 5 obs
○ 2016-01-05 13:22:58
● 2016-04-29 17:07:28
● 2017-01-09 01:43:48
○ 2018-09-07 23:13:28
○ 2026-05-15 02:51:02
○A82.165.78.2322015-06-14 → 2016-01-05 · 4 obs
● 2015-06-14 21:11:22
● 2016-01-05 13:22:58
○ 2016-04-29 17:07:28
○ 2026-05-15 02:51:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dez.nic.de, a.nic.de, f.nic.de-
cdu-lu.dens1035.ui-dns.org, ns1057.ui-dns.com, ns1016.ui-dns.biz, ns1056.ui-dns.de-

✅ Authoritative Response

Server:217.160.83.35

NS records: ns1035.ui-dns.org, ns1057.ui-dns.com, ns1016.ui-dns.biz, ns1056.ui-dns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdu-lu.de (unsigned zone)

⏱️ Timing

Total: 1991ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.244
AAAA12001:8d8:100f:f000::237
NS4ns1035.ui-dns.org, ns1016.ui-dns.biz...
MX1mail.cdu-lu.de (pri: 10)
TXT1v=spf1 +a +mx -all
SOA1ns1016.ui-dns.biz hostmaster.1and1.com

Analysis

Hierarchy

cdu-lu.de is a parent of mail.cdu-lu.de and www.cdu-lu.de.

IP Addresses

cdu-lu.de resolves to two IP numbers: 2001:8d8:100f:f000::237 and 217.160.0.244.

other host names including spotric.net, www.bruderholz.de, climalevel.de, mischon.de and dpm-concepts.de share IP numbers with cdu-lu.de.

Name Servers

cdu-lu.de is delegated to four name servers: ns1016.ui-dns.biz, ns1057.ui-dns.com, ns1056.ui-dns.de and ns1035.ui-dns.org.

cdu-lu.de at least partially shares name servers with other domains, for instance shelbyandbrian.net, sorg-gaming.com, rosen-apotheke-rheinbreitbach.de, graebel.org and lafitnessmembershipfees.com.

These name servers are commonly used with the following name servers: ns1057.ui-dns.biz, ns1057.ui-dns.de, ns1057.ui-dns.org, ns1016.ui-dns.org, ns1016.ui-dns.com, ns1035.ui-dns.biz, ns1035.ui-dns.com, ns1035.ui-dns.de, ns1016.ui-dns.de and ns1056.ui-dns.biz.

Host names with two IP numbers:

ns1016.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5110:100 and 217.160.81.16; ns1057.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5239:100 and 217.160.82.57; ns1056.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:56 and 217.160.80.56; ns1035.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5323:100 and 217.160.83.35.

Mail Servers

cdu-lu.de is handled by a single mail server, mail.cdu-lu.de.

mail.cdu-lu.de resolves to IP 24.134.0.225.