client4u.cc - robtex.com
client4u.cc
cc
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1777183739 | ||||||
Subdomains
Same first word
DNS History
5 records (4 active, 1 former)
●NSns1.world4you.at2015-07-04 → 2026-04-26 · 2 obs
● 2026-04-26 06:17:46
●NSns2.world4you.at2015-07-04 → 2026-04-26 · 2 obs
● 2026-04-26 06:17:46
●MXclient4u-cc.mail.protection.outlook.com2017-02-08 → 2026-04-26 · 3 obs
● 2017-02-08 23:16:24
● 2026-04-26 06:17:46
○MXmail.client4u.cc2015-07-04 → 2016-06-20 · 4 obs
● 2016-06-20 00:51:08
○ 2017-02-08 23:16:24
○ 2026-04-26 06:17:46
●A81.19.145.942015-07-04 → 2026-04-26 · 2 obs
● 2026-04-26 06:17:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cc | ac1.nstld.com, ac2.nstld.com, ac3.nstld.com, ac4.nstld.com | - |
| client4u.cc | ns1.world4you.at, ns2.world4you.at | - |
✅ Authoritative Response
Server:217.160.82.253
NS records: ns1.world4you.at, ns2.world4you.at
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for client4u.cc (unsigned zone)
⏱️ Timing
Total: 800ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.19.145.94 |
| NS | 2 | ns2.world4you.at, ns1.world4you.at |
| MX | 1 | client4u-cc.mail.protection.outlook.com |
| TXT | 2 | v=spf1 include:spf.protection.outlook.co, MS=ms43795556 |
| SOA | 1 | ns1.world4you.at hostmaster.world4you.co |
Analysis
Hierarchy
client4u.cc is a parent of email.client4u.cc and mail.client4u.cc.
IP Addresses
client4u.cc resolves to one IP number: 81.19.145.94.
Other host names, for instance gres.at, danielauer.at, by-u.at, scheko.at and bikeandguide.com share IP numbers with client4u.cc.
Name Servers
client4u.cc's delegation uses two name servers: ns1.world4you.at and ns2.world4you.at.
client4u.cc uses the same name server setup as other domains, such as pfitscher.at, n-b-c.at, snerz.at, simitci.at and xposed.at.
Host names with two IPs:
ns1.world4you.at points to 2607:f1c0:fe:53:185:132:32:253 and 185.132.32.253
ns2.world4you.at points to 2001:8d8:fe:53:217:160:82:253 and 217.160.82.253
Mail Servers
A single mail server handles client4u.cc, client4u-cc.mail.protection.outlook.com.
Host client4u-cc.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::1, 2a01:111:f403:ca09::b, 2a01:111:f403:ca09::d, 52.101.68.15, 52.101.68.18, 52.101.73.12 and 52.101.73.24.