coursesource.net - dns.ninja
coursesource.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.33.251.168🇺🇸 Amazon3.33.240.0/20 | ||||||
| A | 15.197.225.128🇺🇸 Amazon15.197.224.0/20 | ||||||
| NS | ns25.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2161::d🇺🇸 GODADDY-DNS2603:5:2160::/44 | ||||||
| PTR | ns25.domaincontrol.com | ||||||
| A | 97.74.102.13🇺🇸 GODADDY-DNS97.74.102.0/23 | ||||||
| NS | ns26.domaincontrol.com | ||||||
| A | 2603:5:2261::d🇺🇸 GODADDY-DNS2603:5:2260::/44 | ||||||
| PTR | ns26.domaincontrol.com | ||||||
| A | 173.201.70.13🇺🇸 GODADDY-DNS173.201.70.0/23 | ||||||
| MX | mx0.123-reg.co.uk ⭐ | ||||||
| A | 216.69.141.71🇺🇸 AS398101216.69.140.0/22 | ||||||
| A | 216.69.141.84🇺🇸 AS398101216.69.140.0/22 | ||||||
| A | 216.69.141.113🇺🇸 AS398101216.69.140.0/22 | ||||||
| MX | mx1.123-reg.co.uk(20) | ||||||
| A | 216.69.141.78🇺🇸 AS398101216.69.140.0/22 | ||||||
| A | 216.69.141.114🇺🇸 AS398101216.69.140.0/22 | ||||||
| A | 216.69.141.162🇺🇸 AS398101216.69.140.0/22 | ||||||
| TXT | v=spf1 mx a ip4:94.136.40.163 a:mailex.mailcore.me -all | ||||||
| SOA | ns25.domaincontrol.comdns@jomax.net 2026-01-28 #1 | ||||||
net
| 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=1784722177 | ||||||
Same first word
coursesource.com |
coursesource.net |
coursesource.org |
Similar names
DNS History
11 records (6 active, 5 former)
○NSns1.domainmonster.com2015-06-09 → 2020-03-03 · 4 obs
● 2020-03-03 18:06:30
○ 2026-02-27 20:44:02
○ 2026-07-22 12:13:56
○NSns2.domainmonster.com2015-06-09 → 2020-03-03 · 4 obs
● 2020-03-03 18:06:30
○ 2026-02-27 20:44:02
○ 2026-07-22 12:13:56
●NSns25.domaincontrol.com2026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
●NSns26.domaincontrol.com2026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
○NSns3.domainmonster.com2015-06-09 → 2020-03-03 · 4 obs
● 2020-03-03 18:06:30
○ 2026-02-27 20:44:02
○ 2026-07-22 12:13:56
○MXmx.coursesource.net.a.emailconfig.com2015-06-09 → 2020-03-03 · 4 obs
● 2020-03-03 18:06:30
○ 2026-02-27 20:44:02
○ 2026-07-22 12:13:56
●MXmx0.123-reg.co.uk2026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
●MXmx1.123-reg.co.uk2026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
○A109.68.33.182015-06-09 → 2020-03-03 · 4 obs
● 2020-03-03 18:06:30
○ 2026-02-27 20:44:02
○ 2026-07-22 12:13:56
●A15.197.225.1282026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
●A3.33.251.1682026-02-27 → 2026-07-22 · 3 obs
● 2026-02-27 20:44:02
● 2026-07-22 12:13:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coursesource.net | ns25.domaincontrol.com, ns26.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.70.13
NS records: ns25.domaincontrol.com, ns26.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursesource.net (unsigned zone)
⏱️ Timing
Total: 538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 15.197.225.128, 3.33.251.168 |
| NS | 2 | ns25.domaincontrol.com, ns26.domaincontrol.com |
| MX | 2 | mx1.123-reg.co.uk (pri: 20), mx0.123-reg.co.uk (pri: 10) |
| TXT | 1 | v=spf1 mx a ip4:94.136.40.163 a:mailex.m |
| SOA | 1 | ns25.domaincontrol.com dns.jomax.net |
Analysis
IP Addresses
coursesource.net has two IP addresses: 3.33.251.168 and 15.197.225.128
Among the host names that share IP numbers with coursesource.net are missourihighestoffersandmore.com, ipeca.net, activecommunityenvironment.org and two others.
Name Servers
coursesource.net is served by two delegated name servers, ns25.domaincontrol.com and ns26.domaincontrol.com.
coursesource.net has the same name server delegation as a number of other domains, such as rishi-advani.com, wetolove.net, elui.com and two more.
The DNS delegation for coursesource.net at least partly coincides with that of other domains, wpdfcu.com being one example.
Each of the two host names carries two IP addresses: ns25.domaincontrol.com points to 97.74.102.13 and 2603:5:2161::d, and ns26.domaincontrol.com points to 173.201.70.13 and 2603:5:2261::d.
Mail Servers
The MX records for coursesource.net point to two mail servers: mx0.123-reg.co.uk and mx1.123-reg.co.uk.
coursesource.net has the same mail server arrangement as a number of other domains, for example tensdirect.com, holidaysmadebetter.co.uk, powertoolworld.pro and two more.
coursesource.net overlaps on mail servers with several other domains, for example ebcglobal.co.uk, astrocare.co, plumbgas.services and flamenco-cornwall.com.
The hosts mx0.123-reg.co.uk and mx1.123-reg.co.uk both resolve to three IP numbers: mx0.123-reg.co.uk to 216.69.141.71, 216.69.141.84 and 216.69.141.113, and mx1.123-reg.co.uk to 216.69.141.78, 216.69.141.114 and 216.69.141.162.