software.su - robtex.com
software.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.190.81.2🇷🇺 SMART-AS91.190.80.0/21 Former Start Telecom SPB network and customere | ||||||
| PTR | stoun-kgvar.cust.smartspb.net | ||||||
| NS | a.ns.selectel.ru ⭐ | ||||||
| A | 2a00:ab00:800::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 188.68.203.1🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | a.ns.selectel.ru | ||||||
| NS | b.ns.selectel.ru | ||||||
| A | 2a00:ab00:801::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 77.223.114.2🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | b.ns.selectel.ru | ||||||
| NS | c.ns.selectel.ru | ||||||
| A | 2a00:ab00:802::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 188.68.203.3🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | c.ns.selectel.ru | ||||||
| NS | d.ns.selectel.ru | ||||||
| A | 2a00:ab00:803::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 77.223.114.4🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | d.ns.selectel.ru | ||||||
| MX | eyetronic.spb.ru ⭐ | ||||||
| SOA | a.ns.selectel.rusupport@selectel.ru 2026-04-21 #4 | ||||||
su
| 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=650209803 | ||||||
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
●NSa.ns.selectel.ru2026-04-21 → 2026-07-12 · 3 obs
● 2026-04-21 16:46:48
● 2026-07-12 01:29:52
●NSb.ns.selectel.ru2026-04-21 → 2026-07-12 · 3 obs
● 2026-04-21 16:46:48
● 2026-07-12 01:29:52
●NSc.ns.selectel.ru2026-04-21 → 2026-07-12 · 3 obs
● 2026-04-21 16:46:48
● 2026-07-12 01:29:52
●NSd.ns.selectel.ru2026-04-21 → 2026-07-12 · 3 obs
● 2026-04-21 16:46:48
● 2026-07-12 01:29:52
○NSns0.eyetronic.net2015-08-30 → 2026-04-19 · 4 obs
● 2026-04-19 05:09:40
○ 2026-04-21 16:46:48
○ 2026-07-12 01:29:52
○NSns1.eyetronic.net2015-08-30 → 2026-04-19 · 4 obs
● 2026-04-19 05:09:40
○ 2026-04-21 16:46:48
○ 2026-07-12 01:29:52
●MXeyetronic.spb.ru2015-08-30 → 2026-07-12 · 2 obs
● 2026-07-12 01:29:52
●A91.190.81.22015-08-30 → 2026-07-12 · 2 obs
● 2026-07-12 01:29:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | 10 records |
| software.su | a.ns.selectel.ru, c.ns.selectel.ru, b.ns.selectel.ru, d.ns.selectel.ru | - |
✅ Authoritative Response
Server:77.223.114.4
NS records: a.ns.selectel.ru, c.ns.selectel.ru, b.ns.selectel.ru, d.ns.selectel.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for software.su (unsigned zone)
⏱️ Timing
Total: 1409ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.190.81.2 |
| NS | 4 | a.ns.selectel.ru, c.ns.selectel.ru... |
| MX | 1 | eyetronic.spb.ru (pri: 10) |
| SOA | 1 | a.ns.selectel.ru support.selectel.ru |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net...)
Analysis
IP Addresses
software.su directs to one IP number, which is 91.190.81.2.
Among the host names that share IP numbers with software.su are poselki.biz, spbestate.su, zagorod.biz and two others.
Name Servers
The domain software.su is delegated to these four name servers: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru.
There is at least partial name server overlap between software.su and other domains — aaaeee.ru, jsk2.ru, xn--74-6kcqehzia2auy.xn--p1ai and two more among them.
These name servers regularly appear alongside ns3-l2.nic.ru, ns4-l2.nic.ru, ns1.baz-on.ru and 4 other name servers in NS record sets.
All four hostnames — a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru — resolve to two IP numbers apiece: a.ns.selectel.ru to 188.68.203.1 and 2a00:ab00:800::2:53; b.ns.selectel.ru to 77.223.114.2 and 2a00:ab00:801::2:53; c.ns.selectel.ru to 188.68.203.3 and 2a00:ab00:802::2:53; d.ns.selectel.ru to 77.223.114.4 and 2a00:ab00:803::2:53.
Mail Servers
software.su routes its mail through a single mail server, eyetronic.spb.ru.