colabcf.com - robtex.com
colabcf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 108.143.152.154🇳🇱 Microsoft108.140.0.0/14 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | colabcf.com ⭐ | ||||||
| A | 108.143.152.154🇳🇱 Microsoft108.140.0.0/14 | ||||||
| TXT | v=spf1 mx ~all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2024-04-06 #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=1778752996 | ||||||
MX for
colabcf.com |
Same first word
colabcf.com |
Similar names
DNS History
4 records (4 active, 0 former)
●MXcolabcf.com2026-05-02 → 2026-05-14 · 2 obs
● 2026-05-14 10:10:58
●A108.143.152.1542026-05-02 → 2026-05-14 · 2 obs
● 2026-05-14 10:10:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| colabcf.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for colabcf.com (unsigned zone)
⏱️ Timing
Total: 2176ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 108.143.152.154 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | colabcf.com (pri: 0) |
| TXT | 1 | v=spf1 mx ~all |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Mail Server Role
colabcf.com serves as the mail server for colabcf.com.
IP Addresses
colabcf.com resolves to a single IP address: 108.143.152.154.
Name Servers
colabcf.com's delegation uses two name servers, ns2.web4u.cz and ns.web4u.cz.
colabcf.com shares the same name server setup as other domains, for example profarm.sk, freightpeople.eu, chezmarcel.cz, prezit.cz and orgsuite.com.
Host names with two IPs:
ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12
ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241
Mail Servers
A single mail server handles colabcf.com.
colabcf.com points to a single IP: 108.143.152.154.