mx1.decidecourse.net - robtex.com
mx1.decidecourse.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.4.12.146🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| PTR | static.146.12.4.46.clients.your-server.de | ||||||
decidecourse.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 52.27.79.221🇺🇸 Amazon52.24.0.0/14 EC2 PDX prefix | ||||||
| NS | ns4.csof.net ⭐ | ||||||
| NS | ns1.csof.net | ||||||
| NS | ns2.csof.net | ||||||
| NS | ns3.csof.net | ||||||
| MX | mx1.decidecourse.net ⭐ | ||||||
| MX | mx2.decidecourse.net ⭐ | ||||||
| TXT | v=spf1 include:_incspfcheck.mailspike.net ?all | ||||||
| SOA | ns4.csof.nethostmaster@decidecourse.net serial=1777065679 | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A46.4.12.1462026-02-22 → 2026-04-24 · 2 obs
● 2026-04-24 21:25:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net... | - |
| decidecourse.net | ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net | 4 records |
✅ Authoritative Response
Server:18.205.186.231
NS records: ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for decidecourse.net (unsigned zone)
⏱️ Timing
Total: 150ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.4.12.146 |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.csof.net, ns2.csof.net, ns4.csof.net...)
Analysis
Mail Server Role
mx1.decidecourse.net functions as a mail server for decidecourse.net.
mx2.decidecourse.net is a mail server commonly used with mx1.decidecourse.net.
IP Addresses
mx1.decidecourse.net resolves to one IP number: 46.4.12.146.
other host names including mx1.090b775301b245b1b0d202e95d02e707.com, mx1.367d4bf48bad274521373f019d71eb4b.com, mx1.81ce9686f32cd57b2014953bede6e2cd.com, mx1.qtlmzqwq.com and mx1.960b00f74d043f861b2929c83e06a20b.site share IP numbers with mx1.decidecourse.net.