activemath.ru - dns.ninja
activemath.ru
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | c.tld-servers.ru | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4069829 | ||||||
Same first word
activemath.de |
activemath.com |
activemath.ru |
Similar names
DNS History
12 records (8 active, 4 former)
●NSns1.hosting.reg.ru2015-05-21 → 2026-08-01 · 2 obs
● 2026-08-01 16:25:02
●NSns2.hosting.reg.ru2015-05-21 → 2026-08-01 · 2 obs
● 2026-08-01 16:25:02
●NSns3.hosting.reg.ru2026-03-03 → 2026-08-01 · 3 obs
● 2026-03-03 02:24:40
● 2026-08-01 16:25:02
●NSns4.hosting.reg.ru2026-03-03 → 2026-08-01 · 3 obs
● 2026-03-03 02:24:40
● 2026-08-01 16:25:02
●NSserver183.hosting.reg.ru2026-03-03 → 2026-08-01 · 3 obs
● 2026-03-03 02:24:40
● 2026-08-01 16:25:02
○NSserver82.hosting.reg.ru2015-05-21 → 2015-10-10 · 4 obs
● 2015-10-10 17:52:18
○ 2015-12-17 04:46:38
○ 2026-08-01 16:25:02
○NSserver96.hosting.reg.ru2015-12-17 → 2017-10-01 · 5 obs
● 2015-12-17 04:46:38
● 2017-10-01 00:12:28
○ 2026-03-03 02:24:40
○ 2026-08-01 16:25:02
●MXmx1.hosting.reg.ru2015-05-21 → 2026-08-01 · 2 obs
● 2026-08-01 16:25:02
●MXmx2.hosting.reg.ru2015-05-21 → 2026-08-01 · 2 obs
● 2026-08-01 16:25:02
●A31.31.196.2452026-03-03 → 2026-08-01 · 3 obs
● 2026-03-03 02:24:40
● 2026-08-01 16:25:02
○A37.140.192.1832015-12-17 → 2017-10-01 · 5 obs
● 2015-12-17 04:46:38
● 2017-10-01 00:12:28
○ 2026-03-03 02:24:40
○ 2026-08-01 16:25:02
○A37.140.192.2322015-05-21 → 2015-10-10 · 4 obs
● 2015-10-10 17:52:18
○ 2015-12-17 04:46:38
○ 2026-08-01 16:25:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | c.tld-servers.ru, d.dns.ripn.net, a.dns.ripn.net, f.dns.ripn.net... | - |
| activemath.ru | ns3.hosting.reg.ru, ns4.hosting.reg.ru | - |
✅ Authoritative Response
Server:31.31.198.161
NS records: ns3.hosting.reg.ru, ns4.hosting.reg.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for activemath.ru (unsigned zone)
⏱️ Timing
Total: 1360ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.31.196.245 |
| NS | 2 | ns1.hosting.reg.ru, ns2.hosting.reg.ru |
| MX | 2 | mx1.hosting.reg.ru (pri: 10), mx2.hosting.reg.ru (pri: 20) |
| TXT | 1 | v=spf1 ip4:31.31.196.245 a mx include:_s |
| SOA | 1 | server183.hosting.reg.ru support.reg.ru |
Analysis
IP Addresses
activemath.ru resolves to one IP address: 31.31.196.245.
aoits.ru, speshilove.ru, e-katerina.com and two other host names share IP numbers with activemath.ru.
Name Servers
activemath.ru has five name servers, which are ns1.hosting.reg.ru, ns2.hosting.reg.ru, ns3.hosting.reg.ru and two others.
The name servers of activemath.ru overlap at least partially with those of other domains — among them sch727.ru, xn--72-dlcdeh4dbgo.xn--p1ai, rota-group.ru and two more.
These name servers commonly appear in delegations together with ns4.hosting.reg.ru, server183.hosting.reg.ru, server256.hosting.reg.ru and 5 other.
Hostnames that resolve to 14 IP addresses:
Hostname ns1.hosting.reg.ru directs to 31.31.194.245, 31.31.194.251 and 31.31.196.37 along with 11 other IP addresses.
Hostname ns2.hosting.reg.ru directs to 31.31.194.244, 31.31.196.34 and 31.31.196.53 along with 11 other IP addresses.
Hostnames that resolve to two IP addresses:
ns3.hosting.reg.ru directs traffic to 31.31.198.161 and 37.140.192.55.
ns4.hosting.reg.ru directs traffic to 31.31.196.61 and 37.140.192.55.
Hosts with just one IP address:
server183.hosting.reg.ru has the IP address 31.31.196.245.
Both ns1.hosting.reg.ru and ns4.hosting.reg.ru resolve to 31.31.196.61 IP addresses each.
Both ns2.hosting.reg.ru and ns3.hosting.reg.ru resolve to 31.31.198.161 IP addresses each.
The host names ns2.hosting.reg.ru, ns3.hosting.reg.ru and ns4.hosting.reg.ru each resolve to 37.140.192.55.
Mail Servers
Mail for activemath.ru is handled by two mail servers — mx1.hosting.reg.ru and mx2.hosting.reg.ru.
activemath.ru uses an identical mail server configuration to several other domains — among them rollenberg.ru, krovrus.ru, osvidetel.ru and two more.
activemath.ru partially shares its mail servers with other domains — including foodestet.ru, ctb-it.ru, nncube.ru and sambuka.ru.
mx1.hosting.reg.ru and mx2.hosting.reg.ru share the same two IP addresses — 31.31.194.240 and 31.31.194.241.
Both mx1.hosting.reg.ru and mx2.hosting.reg.ru resolve to 31.31.194.240 IP addresses each.
Both mx1.hosting.reg.ru and mx2.hosting.reg.ru resolve to 31.31.194.241 IP addresses each.