4-builders.com - robtex.com
4-builders.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 | ||||||
| PTR | dns.dns3.de | ||||||
| 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 #1 | ||||||
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=1771291435 | ||||||
Same first word
4-builders.com |
DNS History
11 records (6 active, 5 former)
●NSdns11.netcologne.de2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
●NSdns12.netcologne.de2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
●NSdns13.netcologne.de2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
●NSdns14.netcologne.de2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
○A103.224.182.2412018-01-02 → 2018-01-02 · 2 obs
○ 2026-03-24 09:38:18
●A2001:4dd0:100:1f00:80:0:80:12026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
●A81.173.194.32026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net... | - |
| 4-builders.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-builders.com (unsigned zone)
⏱️ Timing
Total: 707ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.173.194.3 |
| AAAA | 1 | 2001:4dd0:100:1f00:80:0:80:1 |
| NS | 4 | dns14.netcologne.de, dns13.netcologne.de... |
| SOA | 1 | dns11.netcologne.de hostmaster.netcologn |
Analysis
IP Addresses
Two IP numbers are pointed to by 4-builders.com: 2001:4dd0:100:1f00:80:0:80:1 and 81.173.194.3.
other host names include medelnik.com, ticket.koeln, lechner-aufzuege.eu, st-creativ.de and xn--frh-ioa.de; they share IP numbers with 4-builders.com.
Name Servers
4-builders.com delegates to four name servers: dns11.netcologne.de, dns12.netcologne.de, dns13.netcologne.de and dns14.netcologne.de.
4-builders.com at least partially shares name servers with other domains, for instance euregio-fm.de, sparkasse-lev.biz, bleaching.cologne, amtsvormundschaft.koeln and der-ticketservice.com.
Host names with two IP numbers: 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.