prof-u.ru - robtex.com
prof-u.ru
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4068147 | ||||||
Subdomains
mail.prof-u.ru |
Same first word
prof-u.ru |
DNS History
6 records (6 active, 0 former)
●NSns4-cloud.nic.ru2015-08-11 → 2026-03-24 · 2 obs
● 2026-03-24 01:32:42
●NSns8-cloud.nic.ru2015-08-11 → 2026-03-24 · 2 obs
● 2026-03-24 01:32:42
●MXmail.prof-u.ru2015-08-11 → 2026-03-24 · 2 obs
● 2026-03-24 01:32:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | d.dns.ripn.net, a.dns.ripn.net, e.dns.ripn.net, f.dns.ripn.net... | - |
| prof-u.ru | ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru, ns4-cloud.nic.ru... | 19 records |
✅ Authoritative Response
Server:193.232.146.1
NS records: ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru, ns4-cloud.nic.ru, ns8-cloud.nic.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prof-u.ru (unsigned zone)
⏱️ Timing
Total: 1356ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 5 | ns3-l2.nic.ru, ns4-l2.nic.ru... |
| MX | 1 | mail.prof-u.ru (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:46.148.200.106 ~all |
| SOA | 1 | ns3-l2.nic.ru support.nic.ru |
📌 Glue Records Collected
Total: 19
Out-of-bailiwick: 19 (ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru...)
Analysis
Hierarchy
The parent of mail.prof-u.ru is prof-u.ru.
Name Servers
prof-u.ru is delegated to five name servers: ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru, ns8-cloud.nic.ru and ns8-l2.nic.ru.
prof-u.ru partially shares name servers with other domains; examples include alianta-kuban.ru, eurovazon.ru, rgbs.ru, aopoes.ru and glav-upack.ru.
these name servers are commonly used with the name servers ns3.nic.ru.
Host names with six IP numbers:
ns4-cloud.nic.ru points to 89.104.93.30, 89.104.93.33, 89.104.93.34, 89.104.95.30, 89.104.95.33 and 89.104.95.34.
ns8-cloud.nic.ru points to 89.104.93.31, 89.104.93.35, 89.104.93.36, 89.104.95.31, 89.104.95.35 and 89.104.95.36.
Host names with one IP number:
ns3-l2.nic.ru points to 193.232.146.1
ns4-l2.nic.ru points to 91.217.20.20
ns8-l2.nic.ru points to 91.217.21.20
Mail Servers
prof-u.ru is handled by a single mail server, mail.prof-u.ru.
mail.prof-u.ru points to a single IP: 46.148.200.106.