cortexstudyapp.com - dns.ninja
cortexstudyapp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.143.233.130🇮🇷 ARVANCLOUD-CDN-IR185.143.233.0/24 | ||||||
| A | 185.143.234.130🇮🇷 ARVANCLOUD-CDN-IR185.143.234.0/24 | ||||||
| NS | d.ns.arvancdn.ir ⭐ | ||||||
| A | 185.143.232.253🇮🇷 ARVANCLOUD-CDN-IR185.143.232.0/24 | ||||||
| NS | z.ns.arvancdn.ir | ||||||
| A | 185.143.235.253🇮🇷 ARVANCLOUD-CDN-IR185.143.235.0/24 | ||||||
| SOA | d.ns.arvancdn.irhostmaster@arvancloud.ir serial=1787450720 | ||||||
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=1790020124 | ||||||
Same first word
cortexstudyapp.com |
Previous names
Next names
DNS History
6 records (4 active, 2 former)
●NSd.ns.arvancdn.ir2026-09-01 → 2026-09-21 · 2 obs
● 2026-09-21 20:05:26
●NSz.ns.arvancdn.ir2026-09-01 → 2026-09-21 · 2 obs
● 2026-09-21 20:05:26
●A185.143.233.1302026-09-19 → 2026-09-21 · 3 obs
● 2026-09-19 23:39:06
● 2026-09-21 20:05:26
○A185.143.233.2382026-09-10 → 2026-09-10 · 3 obs
○ 2026-09-19 23:39:06
○ 2026-09-21 20:05:26
●A185.143.234.1302026-09-19 → 2026-09-21 · 3 obs
● 2026-09-19 23:39:06
● 2026-09-21 20:05:26
○A185.143.234.2382026-09-10 → 2026-09-10 · 3 obs
○ 2026-09-19 23:39:06
○ 2026-09-21 20:05:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cortexstudyapp.com | z.ns.arvancdn.ir, d.ns.arvancdn.ir | - |
✅ Authoritative Response
Server:185.143.232.253
NS records: z.ns.arvancdn.ir, d.ns.arvancdn.ir
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortexstudyapp.com (unsigned zone)
⏱️ Timing
Total: 4510ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 185.143.234.130, 185.143.233.130 |
| NS | 2 | d.ns.arvancdn.ir, z.ns.arvancdn.ir |
| SOA | 1 | d.ns.arvancdn.ir hostmaster.arvancloud.i |
Analysis
IP Addresses
cortexstudyapp.com directs to two IP numbers, 185.143.233.130 and 185.143.234.130
Among the host names that share IP numbers with cortexstudyapp.com are mohamadmigeh.ir, hubhse.ir, sherkat.org and two others.
Name Servers
cortexstudyapp.com is delegated to two name servers: d.ns.arvancdn.ir and z.ns.arvancdn.ir.
cortexstudyapp.com has the same name server delegation as a number of other domains, such as botbard.ir, soravelo.ir, airiatire.ir and two more.
cortexstudyapp.com shares at least some of its name servers with other domains, including kolbemoo.ir, jonoubostan.ir, abzarmag.com and two others.
These name servers are frequently seen alongside l.ns.arvancdn.ir, n.ns.arvancdn.ir, p.ns.arvancdn.ir and 7 other name servers.
d.ns.arvancdn.ir and z.ns.arvancdn.ir each resolve to one IP number: d.ns.arvancdn.ir points to 185.143.232.253 and z.ns.arvancdn.ir points to 185.143.235.253.