sysadminsev.ru - dns.ninja
sysadminsev.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=4069878 | ||||||
MX for
sysadminsev.ru |
Previously MX for
Same first word
sysadminsev.ru |
DNS History
13 records (7 active, 6 former)
○NSfirstbytedns.com2016-12-29 → 2017-12-25 · 4 obs
● 2017-12-25 05:36:42
○ 2021-09-12 18:25:00
○ 2026-08-05 17:01:30
●NSfirstbytedns.net2021-09-12 → 2026-08-05 · 3 obs
● 2021-09-12 18:25:00
● 2026-08-05 17:01:30
○NSns1.firstbytedns.com2016-12-29 → 2016-12-29 · 3 obs
○ 2017-12-25 05:36:42
○ 2026-08-05 17:01:30
●NSns1.firstbytedns.net2017-12-25 → 2026-08-05 · 3 obs
● 2017-12-25 05:36:42
● 2026-08-05 17:01:30
○NSns2.firstbytedns.com2016-12-29 → 2016-12-29 · 3 obs
○ 2017-12-25 05:36:42
○ 2026-08-05 17:01:30
●NSns2.firstbytedns.net2017-12-25 → 2026-08-05 · 3 obs
● 2017-12-25 05:36:42
● 2026-08-05 17:01:30
○NSns3.firstbytedns.com2016-12-29 → 2016-12-29 · 3 obs
○ 2017-12-25 05:36:42
○ 2026-08-05 17:01:30
●NSns3.firstbytedns.net2017-12-25 → 2026-08-05 · 3 obs
● 2017-12-25 05:36:42
● 2026-08-05 17:01:30
○MXmail.sysadminsev.ru2016-12-29 → 2017-12-25 · 4 obs
● 2017-12-25 05:36:42
○ 2021-09-12 18:25:00
○ 2026-08-05 17:01:30
●MXmx.yandex.net2026-03-10 → 2026-08-05 · 3 obs
● 2026-03-10 18:33:52
● 2026-08-05 17:01:30
●MXsysadminsev.ru2021-09-12 → 2026-08-05 · 3 obs
● 2021-09-12 18:25:00
● 2026-08-05 17:01:30
●A185.189.12.1442017-12-25 → 2026-08-05 · 3 obs
● 2017-12-25 05:36:42
● 2026-08-05 17:01:30
○A91.107.110.2432016-12-29 → 2016-12-29 · 3 obs
○ 2017-12-25 05:36:42
○ 2026-08-05 17:01:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| sysadminsev.ru | ns2.firstbytedns.net, ns3.firstbytedns.net, ns1.firstbytedns.net | - |
✅ Authoritative Response
Server:185.104.248.27
NS records: ns2.firstbytedns.net, ns3.firstbytedns.net, ns1.firstbytedns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysadminsev.ru (unsigned zone)
⏱️ Timing
Total: 1109ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.189.12.144 |
| NS | 3 | ns3.firstbytedns.net, ns2.firstbytedns.net... |
| MX | 2 | mx.yandex.net (pri: 10), sysadminsev.ru (pri: 20) |
| TXT | 2 | v=spf1 redirect=_spf.yandex.net, yandex-verification: a175328677d1b656 |
| SOA | 1 | firstbytedns.net tech.firstbytedns.net |
Analysis
Mail Server Role
sysadminsev.ru acts as its own mail server.
mx.yandex.net and sysadminsev.ru tend to appear jointly as mail servers.
IP Addresses
sysadminsev.ru points to a single IP number: 185.189.12.144.
Name Servers
sysadminsev.ru has four authoritative name servers: firstbytedns.net, ns1.firstbytedns.net, ns2.firstbytedns.net and ns3.firstbytedns.net.
sysadminsev.ru has at least partial name server overlap with other domains, such as global-seller.ru, dubnachemestry.ru, 160.239.193.in-addr.arpa and two others.
ns1.firstbytedns.ru, ns2.firstbytedns.ru and ns3.firstbytedns.ru — plus 3 other name servers — are commonly paired with these name servers.
ns1.firstbytedns.net resolves to 185.104.248.26 and 2a04:5200:ffff::320b. ns2.firstbytedns.net resolves to 185.104.248.27 and 2a04:5200:ffff::35de. ns3.firstbytedns.net resolves to 185.180.230.222 and 2a04:5200:ffff::115d. All three hostnames point to two IP numbers each.
Mail Servers
Two mail servers handle sysadminsev.ru: sysadminsev.ru and mx.yandex.net.
sysadminsev.ru shares mail servers — at least in part — with other domains, including djgelius.ru, 100trop.ru, completo.ru and two others.
Host names with two IP numbers:
mx.yandex.net maps to two IP addresses — 77.88.21.249 and 2a02:6b8::311.
Host names pointing to a single IP address:
sysadminsev.ru points to the IP address 185.189.12.144.