ctb9.com - robtex.com
ctb9.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.229.166.50🇺🇸 Amazon | ||||||
| PTR | ec2-34-229-166-50.compute-1.amazonaws.com | ||||||
| NS | ns4.csof.net ⭐ | ||||||
| A | 52.20.19.77🇺🇸 Amazon | ||||||
| PTR | ec2-52-20-19-77.compute-1.amazonaws.com | ||||||
| NS | ns1.csof.net | ||||||
| A | 18.205.186.231🇺🇸 Amazon | ||||||
| PTR | ec2-18-205-186-231.compute-1.amazonaws.com | ||||||
| NS | ns2.csof.net | ||||||
| A | 23.21.178.27🇺🇸 Amazon | ||||||
| PTR | ec2-23-21-178-27.compute-1.amazonaws.com | ||||||
| NS | ns3.csof.net | ||||||
| A | 3.214.185.54🇺🇸 Amazon | ||||||
| PTR | ec2-3-214-185-54.compute-1.amazonaws.com | ||||||
| MX | mx1.ctb9.com ⭐ | ||||||
| A | 46.4.12.146🇩🇪 Hetzner | ||||||
| PTR | static.146.12.4.46.clients.your-server.de | ||||||
| MX | mx2.ctb9.com ⭐ | ||||||
| A | 46.4.10.173🇩🇪 Hetzner | ||||||
| PTR | static.173.10.4.46.clients.your-server.de | ||||||
| TXT | v=spf1 include:_incspfcheck.mailspike.net ?all | ||||||
| SOA | ns4.csof.nethostmaster@ctb9.com serial=1771837881 | ||||||
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 | ||||||
Up
Same first word
ctb9.com |
Similar names
DNS History
7 records (7 active, 0 former)
●MXmx1.ctb9.com2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 09:12:16
●MXmx2.ctb9.com2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 09:12:16
●A34.229.166.502026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 09:12:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net... | - |
| ctb9.com | ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net | - |
✅ Authoritative Response
Server: 3.214.185.54
NS records: ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctb9.com (unsigned zone)
⏱️ Timing
Total: 612ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 34.229.166.50 |
| NS | 4 | ns4.csof.net, ns1.csof.net... |
| MX | 2 | mx1.ctb9.com (pri: 10), mx2.ctb9.com (pri: 10) |
| TXT | 1 | v=spf1 include:_incspfcheck.mailspike.ne |
| SOA | 1 | ns4.csof.net hostmaster.ctb9.com |
AI analysis
ctb9.com is a parent of mx2.ctb9.com and mx1.ctb9.com.
ctb9.com maps to IP address 34.229.166.50.
Other host names, for instance ceecb56f25631eff2c0a2bbca4d3ec8b.info, ns5.xyufsmd.cc, 9ba337a70edad5134aa75476c31232c4.com, clientstatsservice.com and m36.nbedwwb.in share IP numbers with ctb9.com.
ctb9.com is delegated to four name servers: ns1.csof.net, ns2.csof.net, ns3.csof.net and ns4.csof.net.
ctb9.com at least partially shares name servers with other domains such as blemblem.us, aa306f7ca3f25103333c39f0332e050e.info, microsql-update.info, webupdater.co and gaoheeuofhefefhutd.io.
These name servers are commonly used with ns5.csof.net, ns6.csof.net, ns7.csof.net and ns8.csof.net.
Host names with one IP number:
ns1.csof.net points to: 18.205.186.231
ns2.csof.net points to: 23.21.178.27
ns3.csof.net points to: 3.214.185.54
ns4.csof.net points to: 52.20.19.77
Two mail servers handle ctb9.com: mx1.ctb9.com and mx2.ctb9.com.
Host names with a single IP address:
mx1.ctb9.com points to 46.4.12.146
mx2.ctb9.com points to 46.4.10.173