cobcourses.com - robtex.com
cobcourses.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=1775957262 | ||||||
Subdomains
Same first word
cobcourses.com |
DNS History
9 records (5 active, 4 former)
○NSns1.bluehost.com2015-08-13 → 2017-04-20 · 4 obs
● 2017-04-20 12:38:14
○ 2026-04-03 00:32:20
○ 2026-04-12 01:28:58
○NSns2.bluehost.com2015-08-13 → 2017-04-20 · 4 obs
● 2017-04-20 12:38:14
○ 2026-04-03 00:32:20
○ 2026-04-12 01:28:58
●NSns31.domaincontrol.com2026-04-03 → 2026-04-12 · 3 obs
● 2026-04-03 00:32:20
● 2026-04-12 01:28:58
●NSns32.domaincontrol.com2026-04-03 → 2026-04-12 · 3 obs
● 2026-04-03 00:32:20
● 2026-04-12 01:28:58
○MXmail.cobcourses.com2015-08-13 → 2017-04-20 · 4 obs
● 2017-04-20 12:38:14
○ 2026-04-03 00:32:20
○ 2026-04-12 01:28:58
●MXmx0.123-reg.co.uk2026-04-03 → 2026-04-12 · 3 obs
● 2026-04-03 00:32:20
● 2026-04-12 01:28:58
●MXmx1.123-reg.co.uk2026-04-03 → 2026-04-12 · 3 obs
● 2026-04-03 00:32:20
● 2026-04-12 01:28:58
●A185.230.63.1712026-04-03 → 2026-04-12 · 3 obs
● 2026-04-03 00:32:20
● 2026-04-12 01:28:58
○A66.147.242.1722015-08-13 → 2017-04-20 · 4 obs
● 2017-04-20 12:38:14
○ 2026-04-03 00:32:20
○ 2026-04-12 01:28:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net... | - |
| cobcourses.com | ns31.domaincontrol.com, ns32.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.105.16
NS records: ns31.domaincontrol.com, ns32.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cobcourses.com (unsigned zone)
⏱️ Timing
Total: 348ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.230.63.171 |
| NS | 2 | ns31.domaincontrol.com, ns32.domaincontrol.com |
| MX | 2 | mx1.123-reg.co.uk (pri: 20), mx0.123-reg.co.uk (pri: 10) |
| SOA | 1 | ns31.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns31.domaincontrol.com, ns31.domaincontrol.com, ns32.domaincontrol.com...)
Analysis
Hierarchy
cobcourses.com is a parent of mail.cobcourses.com and www.cobcourses.com.
IP Addresses
cobcourses.com points to IP number 185.230.63.171.
For instance, other host names footnotejournal.com, enidanmarketing.com, drjaylifecoach.com, prowlist.com and cyclosmith.com share IP numbers with cobcourses.com.
Name Servers
cobcourses.com is delegated to two name servers: ns31.domaincontrol.com and ns32.domaincontrol.com.
cobcourses.com uses the same name server setup as other domains such as sdisgroup.com, karatejharkhand.com, datatrustco.com, rustomjeebellevue.com and saharacafeocmd.com.
Host names with two IP numbers:
ns31.domaincontrol.com points to 2603:5:2191::10 and 97.74.105.16; ns32.domaincontrol.com points to 2603:5:2291::10 and 173.201.73.16.
Mail Servers
Two mail servers mx0.123-reg.co.uk and mx1.123-reg.co.uk handle cobcourses.com.
cobcourses.com shares the same mail server setup as other domains, for instance equestrianguide.net, mepa.org.uk, 7thsense.org, curamedpharmacy.co.uk and myelectric.me.
cobcourses.com shares some mail servers with other domains, at least partially; examples include danveall.com, vwork.co.uk and ocean-forex.com.
Host names with three IP numbers:
mx0.123-reg.co.uk points to: 216.69.141.71, 216.69.141.84 and 216.69.141.113.
mx1.123-reg.co.uk points to: 216.69.141.78, 216.69.141.114 and 216.69.141.162.