mail.f12.su - robtex.com
mail.f12.su
f12.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.189.114.6🇷🇺 RU-CENTER91.189.114.0/23 RU-NIC-HOSTING | ||||||
| NS | ns3.nic.ru ⭐ | ||||||
| NS | ns4.nic.ru | ||||||
| NS | ns8.nic.ru | ||||||
| MX | mx02.nicmail.ru ⭐ | ||||||
| MX | mx01.nicmail.ru(10) | ||||||
| MX | mx03.nicmail.ru(20) | ||||||
| TXT | v=spf1 redirect=nicmail.ru | ||||||
| SOA | ns3.nic.ruadmin@f12.su serial=1690305512 | ||||||
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●MXmx01.nicmail.ru2026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●MXmx02.nicmail.ru2026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●MXmx03.nicmail.ru2026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●A91.189.116.402026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●A91.189.116.412026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●A91.189.116.422026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
●A91.189.116.432026-02-15 → 2026-04-25 · 2 obs
● 2026-04-25 06:16:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | b.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net... | 10 records |
| f12.su | ns3.nic.ru, ns4.nic.ru, ns8.nic.ru | - |
✅ Authoritative Response
Server:194.85.61.20
NS records: ns3.nic.ru, ns4.nic.ru, ns8.nic.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for f12.su (unsigned zone)
⏱️ Timing
Total: 1966ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 91.189.116.40, 91.189.116.43... |
| MX | 3 | mx01.nicmail.ru (pri: 10), mx02.nicmail.ru (pri: 5)... |
| TXT | 1 | v=spf1 redirect=nicmail.ru |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (b.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net...)
Analysis
IP Addresses
mail.f12.su resolves to four IPs: 91.189.116.40, 91.189.116.41, 91.189.116.42 and 91.189.116.43.
Other host names such as mail.rcg-pm.com, mail.bel-ka.ru, mail.sanilux.ru, mail.composite.ru and mail.import-moto.com share IP numbers with mail.f12.su.
Mail Servers
Three mail servers handle mail.f12.su: mx01.nicmail.ru, mx02.nicmail.ru and mx03.nicmail.ru.
mail.f12.su shares at least some mail servers with other domains, for example livelab.pro, libermedia.nichost.ru, mail.gooddoor.ru, ingins.ru and svoydom-nf.ru.
Host names with four IP numbers:
mx01.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16
mx02.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16
Host names with one IP number:
mx03.nicmail.ru points to: 91.189.116.16
Host names that point to 91.189.116.13: mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.14: mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.15: mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.16: mx01.nicmail.ru, mx02.nicmail.ru and mx03.nicmail.ru