defx.courses - robtex.com
defx.courses
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1776099014 | ||||||
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●NSdns1.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●NSdns2.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●MXeforward1.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●MXeforward2.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●MXeforward3.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●MXeforward4.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●MXeforward5.registrar-servers.com2026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
●A162.255.119.1702026-04-03 → 2026-04-13 · 2 obs
● 2026-04-13 18:24:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | z.nic.courses, x.nic.courses, a.nic.courses, c.nic.courses... | 12 records |
| defx.courses | dns1.registrar-servers.com, dns2.registrar-servers.com | - |
✅ Authoritative Response
Server:156.154.133.200
NS records: dns1.registrar-servers.com, dns2.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for defx.courses (unsigned zone)
⏱️ Timing
Total: 419ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.255.119.170 |
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 5 | eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10... |
| TXT | 1 | v=spf1 include:spf.efwd.registrar-server |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)
Analysis
IP Addresses
defx.courses resolves to one IP number: 162.255.119.170.
other host names including satoriai.app, carnycares.com, coretti.net, thetyechang.com and teamoutfront.com share IP numbers with defx.courses.
Name Servers
defx.courses is delegated to two name servers dns1.registrar-servers.com and dns2.registrar-servers.com.
defx.courses shares the same name server setup as other domains, for instance mindsecret(0x736578)posed.com, tewpml.com, voiceandvoiceover.com, cdn-static-assets.org and moguling.com.
defx.courses at least partially shares name servers with other domains, for instance matthewcupples.com, dpriedel.com, nxtcty.net and jetcomx.com.
These name servers are commonly used with dns4.registrar-servers.com, dns3.registrar-servers.com and dns5.registrar-servers.com.
Host names with two IP numbers:
The host name dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200; the host name dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.
Mail Servers
defx.courses is handled by five mail servers: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com and eforward5.registrar-servers.com.
defx.courses shares some mail servers with other domains, at least partially, for instance vemasglobal.com, zgvpn.fit, hexmasters.com, ddtj.org and alwanih.com.
These mail servers are commonly used alongside eforward6.registrar-servers.com and eforward7.registrar-servers.com.
Host names with a single IP
eforward1.registrar-servers.com points to: 162.255.118.51
eforward2.registrar-servers.com points to: 162.255.118.52
eforward3.registrar-servers.com points to: 162.255.118.51
eforward4.registrar-servers.com points to: 162.255.118.52
eforward5.registrar-servers.com points to: 162.255.118.51
Host names that point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com
Host names that point to 162.255.118.52: eforward2.registrar-servers.com and eforward4.registrar-servers.com