4-builder.com - robtex.com
4-builder.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:4dd0:100:1f00:80:0:80:1🇩🇪 NETCOLOGNE2001:4dd0::/32 NetCologne GmbH Am Coloneum 9 50829 Koeln | ||||||
| PTR | webcluster01.netcologne.de | ||||||
| A | 81.173.194.3🇩🇪 NETCOLOGNE81.173.128.0/17 NetCologne PA space | ||||||
| NS | dns11.netcologne.de ⭐ | ||||||
| A | 2a02:2940:0:a0d1::246🇩🇪 INETWIRE-AS2a02:2940::/32 PartnerGate GmbH Wilhelm-Wagenfeld-Str. 20 80807 Muenchen Germany | ||||||
| PTR | dns.dns1.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 | dns12.netcologne.de | ||||||
| A | 2a02:2940:0:a0d2::218🇩🇪 INETWIRE-AS2a02:2940::/32 PartnerGate GmbH Wilhelm-Wagenfeld-Str. 20 80807 Muenchen Germany | ||||||
| PTR | dns.dns2.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 | dns13.netcologne.de | ||||||
| A | 2a00:11c0:e:766::2🇩🇪 ANEXIA2a00:11c0:e::/48 Internetdienstleistungs GmbH DE - Frankfurt | ||||||
| PTR | dns.dns3.de | ||||||
| A | 217.146.22.194🇩🇪 ANEXIA217.146.22.0/24 Anexia DE - Frankfurt | ||||||
| NS | dns14.netcologne.de | ||||||
| A | 2a01:4f8:192:2187::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | dns.dns4.de | ||||||
| A | 144.76.91.137🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1 | ||||||
| PTR | dns.dns4.de | ||||||
| SOA | dns11.netcologne.dehostmaster@netcologne.de 2022-03-18 #4 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776303417 | ||||||
Same first word
4-builder.com |
DNS History
7 records (6 active, 1 former)
●NSdns11.netcologne.de2019-12-18 → 2026-04-16 · 2 obs
● 2026-04-16 01:46:34
●NSdns12.netcologne.de2019-12-18 → 2026-04-16 · 2 obs
● 2026-04-16 01:46:34
●NSdns13.netcologne.de2019-12-18 → 2026-04-16 · 2 obs
● 2026-04-16 01:46:34
●NSdns14.netcologne.de2019-12-18 → 2026-04-16 · 2 obs
● 2026-04-16 01:46:34
●A2001:4dd0:100:1f00:80:0:80:12026-04-07 → 2026-04-16 · 3 obs
● 2026-04-07 10:29:06
● 2026-04-16 01:46:34
○A212.161.62.362019-12-18 → 2019-12-18 · 3 obs
○ 2026-04-07 10:29:06
○ 2026-04-16 01:46:34
●A81.173.194.32026-04-07 → 2026-04-16 · 3 obs
● 2026-04-07 10:29:06
● 2026-04-16 01:46:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 4-builder.com | dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de, dns14.netcologne.de | - |
✅ Authoritative Response
Server:144.76.91.137
NS records: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de, dns14.netcologne.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4-builder.com (unsigned zone)
⏱️ Timing
Total: 789ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.173.194.3 |
| AAAA | 1 | 2001:4dd0:100:1f00:80:0:80:1 |
| NS | 4 | dns13.netcologne.de, dns11.netcologne.de... |
| SOA | 1 | dns11.netcologne.de hostmaster.netcologn |
Analysis
IP Addresses
4-builder.com resolves to two IP numbers: 2001:4dd0:100:1f00:80:0:80:1 and 81.173.194.3.
Other host names, for instance d-gtld.eu, abacus-betriebsberatung.de, netregio.de, supportgis.de and www.lindner-gmbh.de share IP numbers with 4-builder.com.
Name Servers
4-builder.com is delegated to four name servers: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de and dns14.netcologne.de.
4-builder.com shares some name servers with other domains, for example baumarktmanager.de, academy.de, idmip.net, seminarunterlagen.de and egm-bonn.de.
Host names with two IP numbers
Two IPs per host:
dns11.netcologne.de points to 2a02:2940:0:a0d1::246 and 95.130.16.246
dns12.netcologne.de points to 2a02:2940:0:a0d2::218 and 95.130.17.218
dns13.netcologne.de points to 2a00:11c0:e:766::2 and 217.146.22.194
dns14.netcologne.de points to 2a01:4f8:192:2187::2 and 144.76.91.137