coursejar.com - dns.ninja
coursejar.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.55.155.71🇨🇦 INFB216.55.144.0/20 619A Kumpf Drive Waterloo ON N2V 1K8 Canada | ||||||
| PTR | mmproperties.com | ||||||
| NS | ns1.brandpa.com ⚠️ Not in zone NS records | ||||||
| A | 216.55.155.71🇨🇦 INFB216.55.144.0/20 619A Kumpf Drive Waterloo ON N2V 1K8 Canada | ||||||
| PTR | mmproperties.com | ||||||
| NS | ns2.brandpa.com ⚠️ Not in zone NS records | ||||||
| A | 216.55.155.72🇨🇦 INFB216.55.144.0/20 619A Kumpf Drive Waterloo ON N2V 1K8 Canada | ||||||
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=1785011357 | ||||||
Previously MX for
coursejar.com |
Same first word
coursejar.com |
Similar names
DNS History
9 records (3 active, 6 former)
●NSns1.brandpa.com2026-03-02 → 2026-07-25 · 3 obs
● 2026-03-02 07:56:06
● 2026-07-25 20:43:46
○NSns1.mdnsservice.com2015-06-15 → 2017-05-27 · 4 obs
● 2017-05-27 00:57:56
○ 2026-03-02 07:56:06
○ 2026-07-25 20:43:46
●NSns2.brandpa.com2026-03-02 → 2026-07-25 · 3 obs
● 2026-03-02 07:56:06
● 2026-07-25 20:43:46
○NSns2.mdnsservice.com2015-06-15 → 2017-05-27 · 4 obs
● 2017-05-27 00:57:56
○ 2026-03-02 07:56:06
○ 2026-07-25 20:43:46
○NSns3.mdnsservice.com2015-06-15 → 2017-05-27 · 4 obs
● 2017-05-27 00:57:56
○ 2026-03-02 07:56:06
○ 2026-07-25 20:43:46
○MXcoursejar.com2015-06-15 → 2017-05-27 · 4 obs
● 2017-05-27 00:57:56
○ 2026-03-02 07:56:06
○ 2026-07-25 20:43:46
○A199.167.31.1602015-06-15 → 2017-05-27 · 4 obs
● 2017-05-27 00:57:56
○ 2026-03-02 07:56:06
○ 2026-07-25 20:43:46
●A216.55.155.712026-03-02 → 2026-07-25 · 9 obs
● 2026-03-02 07:56:06
● 2026-03-21 17:42:20
○ 2026-03-24 02:50:54
● 2026-04-06 00:52:16
● 2026-04-28 04:23:40
○ 2026-07-10 21:10:26
● 2026-07-25 20:43:44
● 2026-07-25 20:43:46
○A216.55.155.722026-03-24 → 2026-07-10 · 7 obs
● 2026-03-24 02:50:54
○ 2026-04-06 00:52:16
○ 2026-04-28 04:23:40
● 2026-07-10 21:10:26
○ 2026-07-25 20:43:44
○ 2026-07-25 20:43:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| coursejar.com | ns2.brandpa.com, ns1.brandpa.com | 2 records |
✅ Authoritative Response
Server:216.55.155.71
NS records: ns2.brandpa.com, ns1.brandpa.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursejar.com (unsigned zone)
⏱️ Timing
Total: 302ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.55.155.72 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.brandpa.com, ns1.brandpa.com)
Analysis
IP Addresses
coursejar.com directs to one IP number, which is 216.55.155.71.
Among the host names that share IP numbers with coursejar.com are prereads.com, lax.uldir.com--www.uldir.com, mail.supportfans.com and two others.
Name Servers
coursejar.com is delegated to two name servers: ns1.brandpa.com and ns2.brandpa.com.
coursejar.com has the same name server delegation as a number of other domains, such as mybasil.com, basiil.com, meshlo.com and two more.
coursejar.com shares at least some of its name servers with other domains, such as fzlu.com.
Each of ns1.brandpa.com and ns2.brandpa.com has one IP address: ns1.brandpa.com uses 216.55.155.71 and ns2.brandpa.com uses 216.55.155.72.