prac.su - dns.ninja
prac.su
su
| 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=650210141 | ||||||
Same first word
prac.com.pl |
prac.su |
prac.ru |
prac.to |
prac.co.uk |
prac.nl |
prac.co |
prac.org |
prac.com |
prac.ca |
prac.eu |
prac.de |
prac.com.ar |
Similar names
DNS History
16 records (12 active, 4 former)
●NSns.masterhost.ru2015-08-15 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●NSns1.masterhost.ru2015-08-15 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●NSns2.masterhost.ru2015-08-15 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●MXmx1.masterhost.ru2015-08-15 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●A2a00:15f8:a000:5:1:11:0:b5e92016-11-04 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●A2a00:15f8:a000:5:1:12:0:b5e92016-11-04 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●A2a00:15f8:a000:5:1:13:0:b5e92016-11-04 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●A2a00:15f8:a000:5:1:14:0:b5e92016-11-04 → 2026-08-09 · 2 obs
● 2026-08-09 04:42:20
●A90.156.201.1092026-02-23 → 2026-08-09 · 3 obs
● 2026-02-23 22:09:58
● 2026-08-09 04:42:20
○A90.156.201.1132016-11-04 → 2016-11-04 · 3 obs
○ 2026-02-23 22:09:58
○ 2026-08-09 04:42:20
○A90.156.201.1162016-11-04 → 2016-11-04 · 3 obs
○ 2026-02-23 22:09:58
○ 2026-08-09 04:42:20
●A90.156.201.172026-02-23 → 2026-08-09 · 3 obs
● 2026-02-23 22:09:58
● 2026-08-09 04:42:20
○A90.156.201.562016-11-04 → 2016-11-04 · 3 obs
○ 2026-02-23 22:09:58
○ 2026-08-09 04:42:20
○A90.156.201.632016-11-04 → 2016-11-04 · 3 obs
○ 2026-02-23 22:09:58
○ 2026-08-09 04:42:20
●A90.156.201.642026-02-23 → 2026-08-09 · 3 obs
● 2026-02-23 22:09:58
● 2026-08-09 04:42:20
●A90.156.201.962026-02-23 → 2026-08-09 · 3 obs
● 2026-02-23 22:09:58
● 2026-08-09 04:42:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| prac.su | ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru | - |
✅ Authoritative Response
Server:90.156.137.50
NS records: ns.masterhost.ru, ns1.masterhost.ru, ns2.masterhost.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prac.su (unsigned zone)
⏱️ Timing
Total: 1310ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 90.156.201.96, 90.156.201.109... |
| AAAA | 4 | 2a00:15f8:a000:5:1:13:0:b5e9, 2a00:15f8:a000:5:1:12:0:b5e9... |
| NS | 3 | ns.masterhost.ru, ns1.masterhost.ru... |
| MX | 1 | mx1.masterhost.ru (pri: 10) |
| SOA | 1 | ns1.masterhost.ru hostmaster.masterhost. |
Analysis
IP Addresses
prac.su has 8 IP addresses — 90.156.201.17, 90.156.201.64, 90.156.201.96 and 5 more.
jureprom.ru, gon.ru, edvo.ru and two other host names share IP numbers with prac.su.
Name Servers
prac.su is delegated to three name servers: ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru.
There is at least partial name server overlap between prac.su and other domains — krbibl.ru, suhov.pro, speechanimator.ru and two more among them.
ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru each resolve to two IP addresses: ns1.masterhost.ru resolves to 90.156.137.50 and 2a00:15f8:a000:11:1:1:1:53; ns2.masterhost.ru resolves to 90.156.133.161 and 2a00:15f8:a000:12:1:1:2:53; ns.masterhost.ru resolves to 90.156.136.116 and 2a00:15f8:a000:10:1:1:0:53.
Mail Servers
Mail for prac.su is handled by a single mail server, mx1.masterhost.ru.
prac.su uses an identical mail server configuration to several other domains — among them amsr.ru, dvdpleer.ru, xn--98-qmc.xn--p1ai and two more.
prac.su and other domains — profzapas.ru for instance — share at least some mail servers.
mx1.masterhost.ru resolves to a single IP number: 90.156.132.120.