coursecoder.com - robtex.com
coursecoder.com
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=1778540851 | ||||||
Same first word
coursecoder.com |
Similar names
DNS History
12 records (8 active, 4 former)
●NSdns1.registrar-servers.com2026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
●NSdns2.registrar-servers.com2026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
○NSns1.bluehost.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-03-30 03:17:34
○ 2026-05-11 23:18:52
○NSns2.bluehost.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-03-30 03:17:34
○ 2026-05-11 23:18:52
○MXmail.coursecoder.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-03-30 03:17:34
○ 2026-05-11 23:18:52
●MXmx1.privateemail.com2026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
●MXmx2.privateemail.com2026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
○A104.131.56.1672016-12-17 → 2016-12-17 · 3 obs
○ 2026-03-30 03:17:34
○ 2026-05-11 23:18:52
●A185.199.108.1532026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
●A185.199.109.1532026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
●A185.199.110.1532026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
●A185.199.111.1532026-03-30 → 2026-05-11 · 3 obs
● 2026-03-30 03:17:34
● 2026-05-11 23:18:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coursecoder.com | dns1.registrar-servers.com, dns2.registrar-servers.com | 4 records |
✅ 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 coursecoder.com (unsigned zone)
⏱️ Timing
Total: 131ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 185.199.109.153, 185.199.111.153... |
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 2 | mx1.privateemail.com (pri: 10), mx2.privateemail.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.privateemail.com ~all |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)
Analysis
IP Addresses
Four IP numbers are pointed to by coursecoder.com: 185.199.108.153, 185.199.109.153, 185.199.110.153 and 185.199.111.153.
other host names including tonebase.github.io, harveylab.github.io, mini-tours.net, barometz.github.io and peterdev.pl share IP numbers with coursecoder.com.
Name Servers
coursecoder.com is delegated to two name servers dns1.registrar-servers.com and dns2.registrar-servers.com.
coursecoder.com shares the same name server setup as other domains, for instance ardonshomedecor.com, hoardhabit.com, halaine.com, shkadov.net and 1sentonmba.com.
coursecoder.com shares at least some name servers with other domains, for example juzdo.com, openkeg.com and andyviano.com.
These name servers are commonly used with dns3.registrar-servers.com, dns4.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
Two mail servers handle coursecoder.com: mx1.privateemail.com and mx2.privateemail.com.
coursecoder.com shares the same mail server setup as other domains, for instance cybermarketingsolutions.com, seocave.com, insiders.agency, signal-master.org and startupmag.co.uk.
coursecoder.com shares some mail servers with other domains, at least partially, for example veogeneration.com and plus4.co.
Host names with one IP number:
mx1.privateemail.com points to 162.255.118.7
mx2.privateemail.com points to 162.255.118.8