coursebuilder.ca - robtex.com
coursebuilder.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 50.63.160.157🇺🇸 AS39810150.63.160.0/21 | ||||||
| PTR | 157.160.63.50.host.secureserver.net | ||||||
| NS | ns17.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21c0::9🇺🇸 GODADDY-DNS2603:5:21c0::/44 | ||||||
| PTR | ns17.domaincontrol.com | ||||||
| A | 97.74.108.9🇺🇸 GODADDY-DNS97.74.108.0/23 | ||||||
| PTR | ns17.domaincontrol.com | ||||||
| NS | ns18.domaincontrol.com | ||||||
| A | 2603:5:22c0::9🇺🇸 GODADDY-DNS2603:5:22c0::/44 | ||||||
| PTR | ns18.domaincontrol.com | ||||||
| A | 173.201.76.9🇺🇸 GODADDY-DNS173.201.76.0/23 | ||||||
| PTR | ns18.domaincontrol.com | ||||||
| SOA | ns17.domaincontrol.comdns@jomax.net 2017-09-21 #2 | ||||||
ca
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | prd-czp-05.corp.cira.ca ⭐ | ||||||
| NS | any.ca-servers.ca | ||||||
| NS | c.ca-servers.ca | ||||||
| NS | d.ca-servers.ca | ||||||
| NS | j.ca-servers.ca | ||||||
| SOA | prd-czp-05.corp.cira.caadmin-dns@cira.ca serial=2608151230 | ||||||
Subdomains
www.coursebuilder.ca |
Same first word
coursebuilder.withgoogle.com |
coursebuilder.nl |
coursebuilder.com |
coursebuilder.com.au |
coursebuilder.de |
coursebuilder.ca |
Similar names
ucorebuilders.com |
buildresource.sbs |
coeurbuilders.com |
sourcebuilder.xyz |
buildresource.com |
sourcebuilder.net |
DNS History
3 records (3 active, 0 former)
●NSns17.domaincontrol.com2018-05-12 → 2026-08-15 · 2 obs
● 2026-08-15 13:21:08
●NSns18.domaincontrol.com2018-05-12 → 2026-08-15 · 2 obs
● 2026-08-15 13:21:08
●A50.63.160.1572018-05-12 → 2026-08-15 · 2 obs
● 2026-08-15 13:21:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca | - |
| coursebuilder.ca | ns17.domaincontrol.com, ns18.domaincontrol.com | - |
✅ Authoritative Response
Server:97.74.108.9
NS records: ns17.domaincontrol.com, ns18.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursebuilder.ca (unsigned zone)
⏱️ Timing
Total: 373ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 50.63.160.157 |
| NS | 2 | ns17.domaincontrol.com, ns18.domaincontrol.com |
| SOA | 1 | ns17.domaincontrol.com dns.jomax.net |
Analysis
Hierarchy
coursebuilder.ca is a parent domain of www.coursebuilder.ca.
IP Addresses
coursebuilder.ca directs to one IP number, which is 50.63.160.157.
157.160.63.50.host.secureserver.net, for instance, is one of the other host names sharing IP numbers with coursebuilder.ca.
Name Servers
coursebuilder.ca uses two name servers for its delegation: ns17.domaincontrol.com and ns18.domaincontrol.com.
coursebuilder.ca has the same name server delegation as a number of other domains, such as megapool.ca, sacmedtraining.net, metalhealthassociation.net and two more.
At least some of coursebuilder.ca's name servers are also used by other domains, among them waterjet.to.
The two host names ns17.domaincontrol.com and ns18.domaincontrol.com each have a pair of IP addresses: ns17.domaincontrol.com has 97.74.108.9 and 2603:5:21c0::9, and ns18.domaincontrol.com has 173.201.76.9 and 2603:5:22c0::9.