csa.apmath.spbu.ru - robtex.com
csa.apmath.spbu.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.19.241.193🇷🇺 ASN-SPBGU195.19.224.0/19 Saint-Petersburg State University University emb, 7/9 SPb, Russia | ||||||
| PTR | csa.apmath.spbu.ru | ||||||
apmath.spbu.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.70.219.101🇷🇺 ASN-SPBGU195.70.192.0/19 Saint-Petersburg State University University emb, 7/9 SU-199034, SPb, Russia | ||||||
| NS | ns2.pu.ru ⭐ ⚠️ Not in parent delegation | ||||||
| NS | ns.pu.ru ⚠️ Not in parent delegation | ||||||
| MX | iromport2.pu.ru ⭐ | ||||||
| MX | ironport1.pu.ru ⭐ | ||||||
| TXT | v=spf1 a mx ip4:195.70.197.0/24 ~all | ||||||
| SOA | ns.pu.ruhostmaster@spb.edu 2025-03-24 #12 | ||||||
WOT: SAFE (75/100)
PTR for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A195.19.241.1932015-06-15 → 2026-05-11 · 2 obs
● 2015-06-15 14:48:14
● 2026-05-11 23:18:02
● 2026-05-11 23:18:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| spbu.ru | ns7.spbu.ru, ns.pu.ru, ns2.pu.ru | 3 records |
✅ Authoritative Response
Server:195.70.196.210
NS records: ns7.spbu.ru, ns.pu.ru, ns2.pu.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for spbu.ru (unsigned zone)
⏱️ Timing
Total: 728ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.19.241.193 |
📌 Glue Records Collected
Total: 3
In-bailiwick: 1 (ns7.spbu.ru)
Out-of-bailiwick: 2 (ns2.pu.ru, ns.pu.ru)
Analysis
IP Addresses
csa.apmath.spbu.ru points to a single IP: 195.19.241.193.
Other host names, for instance hub.csa.ru, x8.csa.ru, vlwh-lt.csa.ru, lb.csa.ru and krotreal2.csa.ru share IP numbers with csa.apmath.spbu.ru.