cool4u.at - robtex.com
cool4u.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.129.182.169🇩🇪 netcup-AS45.129.180.0/22 | ||||||
| PTR | post.n99.at | ||||||
| NS | ns1.nx88.de ⭐ | ||||||
| A | 95.130.16.246🇩🇪 INETWIRE-AS95.130.16.0/21 Key-Systems GmbH / PartnerGate Liebherrstr. 22 80538 Muenchen, Germany | ||||||
| PTR | dns.dns1.de | ||||||
| NS | ns2.nx88.de | ||||||
| A | 95.130.17.218🇩🇪 INETWIRE-AS95.130.17.0/24 InterNetWire Communications GmbH Wilhelm-Wagenfeld-Str. 16 80807 Muenchen | ||||||
| PTR | dns.dns2.de | ||||||
| NS | ns3.nx88.de | ||||||
| A | 217.146.22.194🇩🇪 ANEXIA217.146.22.0/24 Anexia DE - Frankfurt | ||||||
| PTR | dns.dns3.de | ||||||
| NS | ns4.nx88.de | ||||||
| A | 144.76.91.137🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1 | ||||||
| PTR | dns.dns4.de | ||||||
| MX | post.n99.at ⭐ | ||||||
| A | 45.129.182.169🇩🇪 netcup-AS45.129.180.0/22 | ||||||
| PTR | post.n99.at | ||||||
| TXT | v=spf1 a mx a:post.n99.at ip4:45.129.182.169 -all | ||||||
| SOA | ns1.nx88.dehostmaster@internetwire.de 2026-01-21 #3 | ||||||
at
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.at ⭐ | ||||||
| NS | d.ns.at | ||||||
| NS | j.ns.at | ||||||
| NS | n.ns.at | ||||||
| NS | ns1.univie.ac.at | ||||||
| NS | ns2.univie.ac.at | ||||||
| NS | r.ns.at | ||||||
| NS | u.ns.at | ||||||
| SOA | dns.nic.atdomain-admin@univie.ac.at serial=1777161602 | ||||||
Subdomains
mail.cool4u.at |
Same first word
Similar names
DNS History
16 records (6 active, 10 former)
○NSdns1.estugo-webhosting.com2015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
○NSdns2.estugo-webhosting.com2015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
○NSdns4.estugo-webhosting.com2015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
○NSdns5.estugo-webhosting.com2015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
○NSns1.linea7.net2015-07-07 → 2015-07-07 · 3 obs
○ 2015-10-22 05:44:58
○ 2026-04-26 01:01:38
●NSns1.nx88.de2026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
○NSns2.linea7.net2015-07-07 → 2015-07-07 · 3 obs
○ 2015-10-22 05:44:58
○ 2026-04-26 01:01:38
●NSns2.nx88.de2026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
●NSns3.nx88.de2026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
●NSns4.nx88.de2026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
○MXhost16.xpirio.net2015-07-07 → 2015-07-07 · 3 obs
○ 2015-10-22 05:44:58
○ 2026-04-26 01:01:38
○MXmail.cool4u.at2015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
●MXpost.n99.at2026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
○A195.16.241.2302015-07-07 → 2015-07-07 · 3 obs
○ 2015-10-22 05:44:58
○ 2026-04-26 01:01:38
○A37.218.252.1882015-10-22 → 2016-10-14 · 5 obs
● 2015-10-22 05:44:58
● 2016-10-14 18:22:24
○ 2026-03-16 11:28:54
○ 2026-04-26 01:01:38
●A45.129.182.1692026-03-16 → 2026-04-26 · 3 obs
● 2026-03-16 11:28:54
● 2026-04-26 01:01:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | ns2.univie.ac.at, d.ns.at, j.ns.at, u.ns.at... | - |
| cool4u.at | ns1.nx88.de, ns2.nx88.de, ns3.nx88.de, ns4.nx88.de | - |
✅ Authoritative Response
Server:217.146.22.194
NS records: ns1.nx88.de, ns2.nx88.de, ns3.nx88.de, ns4.nx88.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cool4u.at (unsigned zone)
⏱️ Timing
Total: 1045ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.129.182.169 |
| NS | 4 | ns2.nx88.de, ns3.nx88.de... |
| MX | 1 | post.n99.at (pri: 10) |
| TXT | 1 | v=spf1 a mx a:post.n99.at ip4:45.129.182 |
| SOA | 1 | ns1.nx88.de hostmaster.internetwire.de |
Analysis
Hierarchy
cool4u.at is the parent of mail.cool4u.at.
IP Addresses
cool4u.at resolves to a single IP: 45.129.182.169.
Other host names, for instance n99.at, ns1.cccm.at, nx97.de, buchtm1.at and nx99.de share IP numbers with cool4u.at.
Name Servers
cool4u.at is delegated to four name servers: ns1.nx88.de, ns2.nx88.de, ns3.nx88.de and ns4.nx88.de.
cool4u.at shares some name servers with other domains, for example zimmer-leopoldsdorf.at, megafitness.at, arbeiterzimmer-wien.at, adams.at and cupcakes-manufaktur.com.
Host names with a single IP
ns1.nx88.de resolves to 95.130.16.246
ns2.nx88.de resolves to 95.130.17.218
ns3.nx88.de resolves to 217.146.22.194
ns4.nx88.de resolves to 144.76.91.137
Mail Servers
cool4u.at is handled by a single mail server, post.n99.at.
cool4u.at shares the mail server setup with other domains, for example zimmer-leopoldsdorf.at, megafitness.at, adams.at, cccm.at and n99.at.
Host name post.n99.at points to IP 45.129.182.169.