study4study.ir - robtex.com
study4study.ir
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.hostiran.net ⚠️ Not in zone NS records | ||||||
| A | 37.27.81.177🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC | ||||||
| PTR | ns1.hostiran.net | ||||||
ir
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.nic.ir ⭐ | ||||||
| NS | b.nic.ir | ||||||
| NS | c.nic.ir | ||||||
| NS | d.nic.ir | ||||||
| SOA | a.nic.irinfo@nic.ir serial=2611041015 | ||||||
MX for
study4study.ir |
Same first word
study4study.ir |
study4study.com |
Previous names
Next names
DNS History
4 records (1 active, 3 former)
●NSns1.hostiran.net2026-10-03 → 2026-11-04 · 2 obs
● 2026-11-04 07:17:02
○NSns2.hostiran.net2026-10-03 → 2026-10-03 · 3 obs
○ 2026-11-04 07:17:00
○ 2026-11-04 07:17:02
○MXstudy4study.ir2026-10-03 → 2026-10-03 · 3 obs
○ 2026-11-04 07:17:00
○ 2026-11-04 07:17:02
○A5.144.129.1332026-10-03 → 2026-10-03 · 3 obs
○ 2026-11-04 07:17:00
○ 2026-11-04 07:17:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ir | a.nic.ir, c.nic.ir, b.nic.ir, d.nic.ir | 8 records |
| study4study.ir | ns1.hostiran.net | - |
✅ Authoritative Response
Server:37.27.81.177
NS records: ns1.hostiran.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at ir: Error: DNS query timeout: 193.189.123.2 for DNSKEY ir
⏱️ Timing
Total: 3848ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 5.144.129.133 |
| NS | 2 | ns2.hostiran.net, ns1.hostiran.net |
| MX | 1 | study4study.ir (pri: 0) |
| TXT | 1 | v=spf1 ip4:5.144.129.2 include:mailii.or |
| SOA | 1 | ns1.hostiran.net root.centraldnserver.co |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.nic.ir, a.nic.ir, c.nic.ir...)
Analysis
Mail Server Role
The MX record for study4study.ir points back to study4study.ir — it is its own mail server.
Name Servers
study4study.ir is served by a sole authoritative name server: ns1.hostiran.net.
At least some of study4study.ir's name servers are shared with other domains, for example barmanpetro.com, orginalshoop.com, arvanacoffee.ir and two more.
These name servers tend to be used in conjunction with the name servers ns2.hostiran.net.
ns1.hostiran.net resolves to a single IP number: 37.27.81.177.