sref.ir - dns.ninja
sref.ir
| DNSSEC | ⚠️ Not signed | ||||||
| NS | f.ns.arvancdn.ir ⚠️ Not in zone NS records | ||||||
| A | 185.143.232.253🇮🇷 ARVANCLOUD-CDN-IR185.143.232.0/24 | ||||||
| NS | v.ns.arvancdn.ir ⚠️ Not in zone NS records | ||||||
| A | 185.143.235.253🇮🇷 ARVANCLOUD-CDN-IR185.143.235.0/24 | ||||||
ir
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.nic.ir ⚠️ Not in zone NS records | ||||||
| NS | b.nic.ir ⚠️ Not in zone NS records | ||||||
| NS | c.nic.ir ⚠️ Not in zone NS records | ||||||
| NS | d.nic.ir ⚠️ Not in zone NS records | ||||||
Subdomains
mail.sref.ir |
Same first word
Similar names
DNS History
11 records (2 active, 9 former)
○NSa-win18.serverpars.com2018-05-15 → 2026-04-15 · 4 obs
● 2026-04-15 06:06:14
○ 2026-06-02 03:39:00
○ 2026-08-10 13:49:30
○NSb-win18.serverpars.com2018-05-15 → 2026-04-15 · 4 obs
● 2026-04-15 06:06:14
○ 2026-06-02 03:39:00
○ 2026-08-10 13:49:30
●NSf.ns.arvancdn.ir2026-06-02 → 2026-08-10 · 3 obs
● 2026-06-02 03:39:00
● 2026-08-10 13:49:30
●NSv.ns.arvancdn.ir2026-06-02 → 2026-08-10 · 3 obs
● 2026-06-02 03:39:00
● 2026-08-10 13:49:30
○MXmail.sref.ir2018-05-15 → 2026-06-15 · 10 obs
● 2020-11-01 17:15:08
○ 2026-04-04 14:07:52
○ 2026-04-15 06:06:14
● 2026-06-02 03:39:00
○ 2026-06-07 03:00:28
○ 2026-06-09 09:23:14
● 2026-06-15 01:41:22
○ 2026-06-15 03:13:24
○ 2026-08-10 13:49:30
○A185.143.233.2342026-06-02 → 2026-06-02 · 4 obs
● 2026-06-02 03:39:00
○ 2026-06-07 03:00:28
○ 2026-08-10 13:49:30
○A185.143.233.2352026-06-15 → 2026-06-15 · 4 obs
● 2026-06-15 01:41:22
○ 2026-06-15 03:13:24
○ 2026-08-10 13:49:30
○A185.143.234.2342026-06-02 → 2026-06-02 · 4 obs
● 2026-06-02 03:39:00
○ 2026-06-07 03:00:28
○ 2026-08-10 13:49:30
○A185.143.234.2352026-06-15 → 2026-06-15 · 4 obs
● 2026-06-15 01:41:22
○ 2026-06-15 03:13:24
○ 2026-08-10 13:49:30
○A185.55.224.882020-11-01 → 2020-11-01 · 4 obs
● 2020-11-01 17:15:08
○ 2026-04-04 14:07:52
○ 2026-08-10 13:49:30
○A81.94.196.1352018-05-15 → 2018-05-15 · 3 obs
○ 2020-11-01 17:15:08
○ 2026-08-10 13:49:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ir | a.nic.ir, c.nic.ir, b.nic.ir, d.nic.ir | 8 records |
| sref.ir | v.ns.arvancdn.ir, f.ns.arvancdn.ir | - |
✅ Authoritative Response
Server:185.143.235.253
NS records: v.ns.arvancdn.ir, f.ns.arvancdn.ir
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sref.ir (unsigned zone)
⏱️ Timing
Total: 1251ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 185.143.233.238, 185.143.234.238 |
| NS | 2 | v.ns.arvancdn.ir, f.ns.arvancdn.ir |
| MX | 1 | mail.sref.ir (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:S132.maindns.net -all |
| SOA | 1 | f.ns.arvancdn.ir hostmaster.arvancloud.i |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (d.nic.ir, c.nic.ir, b.nic.ir...)
Analysis
Hierarchy
sref.ir serves as the parent of mail.sref.ir.
Name Servers
sref.ir is delegated to two name servers: f.ns.arvancdn.ir and v.ns.arvancdn.ir.
The name server configuration of sref.ir is shared with other domains, for instance r2h.ir, abroon.ir, janebito.com and two others.
sref.ir has at least partial name server overlap with other domains, such as posteketab.com, centralweb.ir, autokhabari.ir and two others.
p.ns.arvancdn.ir, y.ns.arvancdn.ir and l.ns.arvancdn.ir — plus 7 other name servers — are commonly paired with these name servers.
f.ns.arvancdn.ir directs to 185.143.232.253 and v.ns.arvancdn.ir directs to 185.143.235.253; each host name points to exactly one IP number.