sysadmin.su - robtex.com
sysadmin.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=650210164 | ||||||
⚠️ On DNS blocklist: spam-tlds
Same first word
Similar names
DNS History
15 records (8 active, 7 former)
○NSns.credo.ru2008-11-25 → 2008-11-25 · 3 obs
○ 2015-06-28 04:52:00
○ 2026-08-11 03:27:30
●NSns.masterhost.ru2015-06-28 → 2026-08-11 · 3 obs
● 2015-06-28 04:52:00
● 2026-08-11 03:27:30
●NSns1.masterhost.ru2015-06-28 → 2026-08-11 · 3 obs
● 2015-06-28 04:52:00
● 2026-08-11 03:27:30
○NSns2.credo.ru2008-11-25 → 2008-11-25 · 3 obs
○ 2015-06-28 04:52:00
○ 2026-08-11 03:27:30
●NSns2.masterhost.ru2015-06-28 → 2026-08-11 · 3 obs
● 2015-06-28 04:52:00
● 2026-08-11 03:27:30
●MXalt1.aspmx.l.google.com2008-11-25 → 2026-08-11 · 2 obs
● 2026-08-11 03:27:30
●MXalt2.aspmx.l.google.com2008-11-25 → 2026-08-11 · 2 obs
● 2026-08-11 03:27:30
●MXaspmx.l.google.com2008-11-25 → 2026-08-11 · 2 obs
● 2026-08-11 03:27:30
●MXaspmx2.googlemail.com2008-11-25 → 2026-08-11 · 2 obs
● 2026-08-11 03:27:30
●MXaspmx3.googlemail.com2008-11-25 → 2026-08-11 · 2 obs
● 2026-08-11 03:27:30
○MXaspmx4.googlemail.com2008-11-25 → 2008-11-25 · 3 obs
○ 2015-06-28 04:52:00
○ 2026-08-11 03:27:30
○MXaspmx5.googlemail.com2008-11-25 → 2008-11-25 · 3 obs
○ 2015-06-28 04:52:00
○ 2026-08-11 03:27:30
○A146.185.177.682015-06-28 → 2015-06-28 · 4 obs
● 2015-06-28 04:52:00
○ 2015-11-10 12:12:06
○ 2026-08-11 03:27:30
○A185.5.250.602015-11-10 → 2016-02-12 · 5 obs
● 2015-11-10 12:12:06
● 2016-02-12 06:12:34
○ 2016-11-08 19:52:10
○ 2026-08-11 03:27:30
○A84.23.45.1032008-11-25 → 2008-11-25 · 3 obs
○ 2015-06-28 04:52:00
○ 2026-08-11 03:27:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | c.tld-servers.ru, a.dns.ripn.net, e.dns.ripn.net, f.dns.ripn.net... | 12 records |
| sysadmin.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 sysadmin.su (unsigned zone)
⏱️ Timing
Total: 1539ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.masterhost.ru, ns2.masterhost.ru... |
| MX | 5 | ASPMX2.GOOGLEMAIL.COM (pri: 10), ALT2.ASPMX.L.GOOGLE.COM (pri: 5)... |
| SOA | 1 | ns1.masterhost.ru hostmaster.masterhost. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Name Servers
sysadmin.su is served by three name servers: ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru.
At least some of sysadmin.su's name servers are shared with other domains, for example mplace.ru, erinetz.ru, joeglo.ru and two more.
The hostnames ns1.masterhost.ru, ns2.masterhost.ru and ns.masterhost.ru each direct to two IP addresses — ns1.masterhost.ru to 90.156.137.50 and 2a00:15f8:a000:11:1:1:1:53, ns2.masterhost.ru to 90.156.133.161 and 2a00:15f8:a000:12:1:1:2:53, and ns.masterhost.ru to 90.156.136.116 and 2a00:15f8:a000:10:1:1:0:53.
Mail Servers
Five mail servers handle sysadmin.su: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
sysadmin.su shares at least some of its mail servers with other domains — for example edword.co, ns500758.ns500758.ns500698.ns500758.ns500758.ns500736.ns500735.ns500698.ns500735.ns500576.ns500708.ns500708.ns500698.ns500619.trackreceptor.com, ns500768.ns500698.ns500758.ns500758.ns500698.ns500698.ns500698.ns500698.ns500698.ns500576.ns500576.ns500619.tracksymphony.com and two more.
It is common to find these mail servers paired with mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 more.
Hosts with two IP numbers each:
The A records for aspmx2.googlemail.com return 192.178.234.26 and 2800:3f0:4003:c14::1a.
The A records for aspmx3.googlemail.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.
The A records for aspmx.l.google.com return 172.253.122.27 and 2607:f8b0:4004:c1b::1b.
The A records for alt1.aspmx.l.google.com return 192.178.234.26 and 2800:3f0:4003:c14::1b.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 192.178.234.26 IP addresses.
aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 2a00:1450:400b:c02::1b IP addresses.