sysadmins.su - dns.ninja
sysadmins.su
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.yandex.net ⭐ | ||||||
| A | 2a02:6b8::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| A | 213.180.204.213🇷🇺 TELETECH213.180.192.0/19 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| NS | dns2.yandex.net | ||||||
| A | 2a02:6b8:0:1::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns2.yandex.net | ||||||
| A | 93.158.134.213🇷🇺 TELETECH93.158.128.0/18 Yandex enterprise network | ||||||
| PTR | dns2.yandex.net | ||||||
| MX | mx.yandex.net ⭐ | ||||||
| A | 2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| A | 77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| TXT | v=spf1 redirect=_spf.yandex.net | ||||||
| SOA | dns1.yandex.netdns-hosting@yandex.ru serial=10 | ||||||
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=650209639 | ||||||
Subdomains
mail.sysadmins.su |
Same first word
Similar names
DNS History
9 records (3 active, 6 former)
●NSdns1.yandex.net2026-03-07 → 2026-06-28 · 3 obs
● 2026-03-07 23:25:38
● 2026-06-28 10:18:04
●NSdns2.yandex.net2026-03-07 → 2026-06-28 · 3 obs
● 2026-03-07 23:25:38
● 2026-06-28 10:18:04
○NSns.masterhost.ru2008-06-04 → 2016-09-08 · 4 obs
● 2016-09-08 08:58:40
○ 2026-03-07 23:25:38
○ 2026-06-28 10:18:04
○NSns1.masterhost.ru2008-06-04 → 2016-09-08 · 4 obs
● 2016-09-08 08:58:40
○ 2026-03-07 23:25:38
○ 2026-06-28 10:18:04
○NSns2.masterhost.ru2008-06-04 → 2016-09-08 · 4 obs
● 2016-09-08 08:58:40
○ 2026-03-07 23:25:38
○ 2026-06-28 10:18:04
●MXmx.yandex.net2015-11-10 → 2026-06-28 · 3 obs
● 2015-11-10 17:56:50
● 2026-06-28 10:18:04
○MXmx1.sysadmins.su2008-06-04 → 2015-10-28 · 4 obs
● 2015-10-28 21:49:20
○ 2015-11-10 17:56:50
○ 2026-06-28 10:18:04
○A213.85.107.1412008-06-04 → 2008-06-04 · 3 obs
○ 2015-08-13 10:22:22
○ 2026-06-28 10:18:04
○A77.37.154.142015-08-13 → 2016-09-08 · 5 obs
● 2015-08-13 10:22:22
● 2016-09-08 08:58:40
○ 2026-03-07 23:25:38
○ 2026-06-28 10:18:04
🔍 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 |
| sysadmins.su | dns1.yandex.net, dns2.yandex.net | - |
✅ Authoritative Response
Server:93.158.134.213
NS records: dns1.yandex.net, dns2.yandex.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysadmins.su (unsigned zone)
⏱️ Timing
Total: 1043ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.yandex.net, dns2.yandex.net |
| MX | 1 | mx.yandex.net (pri: 10) |
| TXT | 1 | v=spf1 redirect=_spf.yandex.net |
| SOA | 1 | dns1.yandex.net dns-hosting.yandex.ru |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
sysadmins.su serves as the parent of mail.sysadmins.su.
Name Servers
The NS records for sysadmins.su delegate to dns1.yandex.net and dns2.yandex.net.
sysadmins.su shares its name server setup with other domains, including start-x.by, wldws.com, antara.su and two others.
sysadmins.su has at least partial name server overlap with other domains, such as mirrors-store.ru, blagraion.ru, phblog.ru and two others.
These name servers tend to appear together with the name servers dns1.yandex.ru, dns2.yandex.ru and ns2.yandex.net.
dns1.yandex.net resolves to 213.180.204.213 and 2a02:6b8::213. Likewise, dns2.yandex.net resolves to 93.158.134.213 and 2a02:6b8:0:1::213 — two IP addresses apiece.
Mail Servers
sysadmins.su has one mail server: mx.yandex.net.
sysadmins.su shares the same mail server setup as other domains, including dyteks.com.tr, setkaopt.ru, shel-vestnik.ru and two others.
sysadmins.su has mail servers in common with other domains — for example hello54.ru and teknoloji2014.com.
mx.yandex.net has two IP addresses: 77.88.21.249 and 2a02:6b8::311.