doi.su - dns.ninja
doi.su
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=650209629 | ||||||
MX for
doi.su |
Subdomains
mx.doi.su |
Same first word
Similar names
DNS History
15 records (11 active, 4 former)
●NSd.ns.cns.su2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●NSd.ns.doi.su2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
○NSns1.expired.domenus.ru2015-12-10 → 2016-12-05 · 5 obs
● 2015-12-10 14:12:02
● 2016-12-05 03:26:50
○ 2020-11-07 17:00:38
○ 2026-06-27 13:53:54
○NSns2.expired.domenus.ru2015-12-10 → 2016-12-05 · 5 obs
● 2015-12-10 14:12:02
● 2016-12-05 03:26:50
○ 2020-11-07 17:00:38
○ 2026-06-27 13:53:54
●NSns2.linode.com2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●NSns4.linode.com2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●NSns5.linode.com2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●MXa.mx.doi.su2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●MXdoi.su2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●MXmx.doi.su2020-11-07 → 2026-06-27 · 3 obs
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●MXs.mx.doi.su2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
●A2001:470:7240::2015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
○A77.87.208.142015-12-10 → 2016-03-08 · 5 obs
● 2015-12-10 14:12:02
● 2016-03-08 20:31:08
○ 2016-07-09 08:57:24
○ 2026-06-27 13:53:54
○A77.87.208.212016-07-09 → 2016-12-05 · 5 obs
● 2016-07-09 08:57:24
● 2016-12-05 03:26:50
○ 2020-11-07 17:00:38
○ 2026-06-27 13:53:54
●A88.198.54.222015-08-17 → 2026-06-27 · 5 obs
○ 2015-12-10 14:12:02
○ 2016-12-05 03:26:50
● 2020-11-07 17:00:38
● 2026-06-27 13:53:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, f.dns.ripn.net, e.dns.ripn.net, b.dns.ripn.net... | - |
| doi.su | ns2.linode.com, ns4.linode.com, ns5.linode.com | - |
✅ Authoritative Response
Server:92.123.95.2
NS records: ns2.linode.com, ns4.linode.com, ns5.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doi.su (unsigned zone)
⏱️ Timing
Total: 959ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.198.54.22 |
| AAAA | 1 | 2001:470:7240:: |
| NS | 5 | ns5.linode.com, d.ns.doi.su... |
| MX | 4 | s.mx.doi.su (pri: 99), doi.su (pri: 46)... |
| TXT | 1 | v=spf1 a mx -all |
| SOA | 1 | d.ns.cns.su root.cns.su |
Analysis
Hierarchy
doi.su is a parent domain of mx.doi.su.
Mail Server Role
The MX record for doi.su points back to doi.su — it is its own mail server.
mx.doi.su, a.mx.doi.su and s.mx.doi.su are frequently seen as mail servers alongside doi.su.
IP Addresses
doi.su resolves to the IP addresses 88.198.54.22 and 2001:470:7240::
Among the host names that share IP numbers with doi.su are a.mx.zfs.su, a.mx.bgp.su, 0k.su and two others.
Name Servers
The authoritative name servers for doi.su are ns2.linode.com, ns4.linode.com, ns5.linode.com and two others.
doi.su shares at least some of its name servers with other domains, including utopiainfosec.net, fgsconference.org, dm-interface.nl and two others.
These name servers are frequently seen alongside ns3.linode.com, ns1.linode.com, d.ns.cns.su and 6 other name servers.
Hosts with two IP numbers each:
ns2.linode.com maps to two IP addresses — 92.123.94.3 and 2600:14c0:6::3.
ns4.linode.com maps to two IP addresses — 92.123.95.4 and 2600:14c0:7::4.
ns5.linode.com maps to two IP addresses — 92.123.95.2 and 2600:14c0:7::2.
d.ns.cns.su maps to two IP addresses — 88.198.54.27 and 2001:470:7240::d.
Hosts that resolve to one IP address:
d.ns.doi.su points to the IP address 2001:470:7240::d.
These two host names — d.ns.cns.su and d.ns.doi.su — each point to 2001:470:7240::d IP addresses.
Mail Servers
doi.su is managed by four mail servers: doi.su, mx.doi.su, a.mx.doi.su and s.mx.doi.su.
Hosts with two IP numbers each:
doi.su maps to two IP addresses — 88.198.54.22 and 2001:470:7240::.
Hosts that resolve to one IP address:
mx.doi.su points to the IP address 2001:470:7240::.
a.mx.doi.su points to the IP address 88.198.54.22.
s.mx.doi.su points to the IP address 88.198.54.27.
These two host names — doi.su and mx.doi.su — each point to 2001:470:7240:: IP addresses.
These two host names — doi.su and a.mx.doi.su — each point to 88.198.54.22 IP addresses.