jcourses.com - dns.ninja
jcourses.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 191.214.60.16🇧🇷 UNSPECIFIED160.0.0.0/3 | ||||||
| NS | ns1.julydns.com ⭐ | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1783778736 | ||||||
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=1785707117 | ||||||
Same first word
jcourses.com |
Similar names
DNS History
6 records (3 active, 3 former)
○NSns1.digitalocean.com2026-03-16 → 2026-03-16 · 3 obs
○ 2026-07-17 22:12:20
○ 2026-08-02 22:13:56
●NSns1.julydns.com2026-07-17 → 2026-08-02 · 3 obs
● 2026-07-17 22:12:20
● 2026-08-02 22:13:56
○NSns2.digitalocean.com2026-03-16 → 2026-03-16 · 3 obs
○ 2026-07-17 22:12:20
○ 2026-08-02 22:13:56
●NSns2.julydns.com2026-07-17 → 2026-08-02 · 3 obs
● 2026-07-17 22:12:20
● 2026-08-02 22:13:56
○NSns3.digitalocean.com2026-03-16 → 2026-03-16 · 3 obs
○ 2026-07-17 22:12:20
○ 2026-08-02 22:13:56
●A191.214.60.162026-07-17 → 2026-08-02 · 2 obs
● 2026-08-02 22:13:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net... | - |
| jcourses.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server:162.159.48.223
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jcourses.com (unsigned zone)
⏱️ Timing
Total: 304ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 191.214.60.16 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)
Analysis
IP Addresses
jcourses.com directs to one IP number, which is 191.214.60.16.
Name Servers
The NS records for jcourses.com delegate to ns1.julydns.com and ns2.julydns.com.
jcourses.com has the same name server delegation as a number of other domains, such as pxlanxiang.com, www-88kq88.com, tjhdgc.com and two more.
jcourses.com has at least partial name server overlap with other domains, such as bgbai.com, wuhedichan.com, qzbfj.com and two others.
It is common to find these name servers paired with the name servers ns1.judns.com, ns2.judns.com, ns1.onclouddns.com and ns2.onclouddns.com.
Each of ns1.julydns.com and ns2.julydns.com points to exactly one IP address: 162.159.48.223.
ns1.julydns.com and ns2.julydns.com each have 162.159.48.223 IP addresses.