ir.ac - robtex.com
ir.ac
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.139.159.151🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix | ||||||
| PTR | ec2-3-139-159-151.us-east-2.compute.amazonaws.com | ||||||
| NS | l1.ns.divido.org.ir.ac ⭐ | ||||||
| A | 3.139.159.151🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix | ||||||
| PTR | ec2-3-139-159-151.us-east-2.compute.amazonaws.com | ||||||
| NS | l1.ns.divido.org | ||||||
| A | 91.208.95.134🇬🇧 NJIIX-191.208.95.0/24 Proxy by NJIIX.NET | ||||||
| PTR | srvc134.cdns.net | ||||||
| NS | l2.ns.divido.org | ||||||
| A | 2001:470:1f07:d0b::134🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| A | 91.208.95.134🇬🇧 NJIIX-191.208.95.0/24 Proxy by NJIIX.NET | ||||||
| PTR | srvc134.cdns.net | ||||||
| TXT | 26e2cd39db437b9d550a5ddfc846fcd327471ed6 | ||||||
| SOA | l1.ns.divido.org.ir.acadmin@divido.org.ir.ac 2013-10-10 #24 | ||||||
ac
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.ac ⭐ | ||||||
| NS | a2.nic.ac | ||||||
| NS | b0.nic.ac | ||||||
| NS | c0.nic.ac | ||||||
| SOA | a0.nic.achostmaster@donuts.email serial=1775935327 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSl1.ns.divido.org2018-07-22 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:58
●NSl1.ns.divido.org.ir.ac2018-07-22 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:58
●NSl2.ns.divido.org2018-07-22 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:58
○A193.223.78.2302018-07-22 → 2018-07-22 · 3 obs
○ 2026-02-14 23:12:02
○ 2026-04-11 19:35:58
●A3.139.159.1512026-02-14 → 2026-04-11 · 3 obs
● 2026-02-14 23:12:02
● 2026-04-11 19:35:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ac | a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac | 8 records |
| ir.ac | l2.ns.divido.org, l1.ns.divido.org | - |
✅ Authoritative Response
Server:91.208.95.134
NS records: l2.ns.divido.org, l1.ns.divido.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ir.ac (unsigned zone)
⏱️ Timing
Total: 396ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.139.159.151 |
| NS | 2 | l2.ns.divido.org, l1.ns.divido.org |
| TXT | 1 | 26e2cd39db437b9d550a5ddfc846fcd327471ed6 |
| SOA | 1 | l1.ns.divido.org.ir.ac admin.divido.org. |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.ac, a2.nic.ac, b0.nic.ac...)
Analysis
Hierarchy
ir.ac is parent of www.ir.ac, irancell.ir.ac and org.ir.ac.
IP Addresses
ir.ac points to a single IP: 3.139.159.151.
Other host names, for instance divido.org.rs.sh, org.9.tm, org.sr.io, divido.org.at.ac and ns.divido.org.pr.ac share IP numbers with ir.ac.
Name Servers
ir.ac is delegated to three name servers: l1.ns.divido.org, l2.ns.divido.org and l1.ns.divido.org.ir.ac.
ir.ac at least partially shares its name servers with other domains, for instance t.tm, ul.ac, v.ac, io.ac and ba.io.
These name servers are commonly used with l1.ns.divido.org.t.tm, l1.ns.divido.org.ul.ac, l1.ns.divido.org.v.ac, l1.ns.divido.org.io.ac, l1.ns.divido.org.ba.io, l1.ns.divido.org.uj.ac, l1.ns.divido.org.mu.io, l1.ns.divido.org.pk.sh, l1.ns.divido.org.lr.ac and l1.ns.divido.org.cm.io.
Host names with two IP numbers:
l2.ns.divido.org points to: 2001:470:1f07:d0b::134 and 91.208.95.134.
Host names with one IP number:
l1.ns.divido.org points to: 91.208.95.134.
l1.ns.divido.org.ir.ac points to: 3.139.159.151.
Host names that point to 91.208.95.134: l2.ns.divido.org and l1.ns.divido.org.