fmt.su - dns.ninja
fmt.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=650209892 | ||||||
MX for
fmt.su |
Subdomains
mx.fmt.su |
Same first word
Similar names
DNS History
11 records (11 active, 0 former)
●NSns2.linode.com2015-07-18 → 2026-07-19 · 2 obs
● 2026-07-19 12:46:24
●NSns4.linode.com2015-07-18 → 2026-07-19 · 2 obs
● 2026-07-19 12:46:24
●NSns5.linode.com2015-07-18 → 2026-07-19 · 2 obs
● 2026-07-19 12:46:24
●MXfmt.su2015-07-18 → 2026-07-19 · 5 obs
● 2016-04-12 02:48:50
○ 2016-04-28 14:28:26
● 2021-10-05 00:39:54
● 2026-07-19 12:46:24
●MXmx.fmt.su2016-04-28 → 2026-07-19 · 3 obs
● 2016-04-28 14:28:26
● 2026-07-19 12:46:24
●A2001:470:7240::2015-07-18 → 2026-07-19 · 2 obs
● 2026-07-19 12:46:24
●A88.198.54.222015-07-18 → 2026-07-19 · 2 obs
● 2026-07-19 12:46:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | b.dns.ripn.net, d.dns.ripn.net, a.dns.ripn.net, f.dns.ripn.net... | 10 records |
| fmt.su | ns4.linode.com, ns5.linode.com, ns2.linode.com | - |
✅ Authoritative Response
Server:92.123.95.2
NS records: ns4.linode.com, ns5.linode.com, ns2.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fmt.su (unsigned zone)
⏱️ Timing
Total: 2102ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.198.54.22 |
| AAAA | 1 | 2001:470:7240:: |
| NS | 5 | ns2.linode.com, ns4.linode.com... |
| MX | 4 | a.mx.fmt.su (pri: 10), s.mx.fmt.su (pri: 99)... |
| TXT | 1 | v=spf1 a mx -all |
| SOA | 1 | d.ns.cns.su root.cns.su |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Hierarchy
fmt.su serves as the parent of mx.fmt.su.
Mail Server Role
fmt.su is listed as a mail server for itself.
As mail servers, mx.fmt.su, a.mx.fmt.su and s.mx.fmt.su are often used in combination with fmt.su.
IP Addresses
fmt.su resolves to the IP addresses 88.198.54.22 and 2001:470:7240::
mxr.su, maps.su, netbsd.su and two other host names share IP numbers with fmt.su.
Name Servers
fmt.su has five name servers, which are ns2.linode.com, ns4.linode.com, ns5.linode.com and two others.
fmt.su has at least partial name server overlap with other domains, such as siwko.com, hello-shiftone.org, fyap.net and two others.
ns1.linode.com, ns3.linode.com and d.ns.cns.su — plus 6 other name servers — are commonly paired with these name servers.
Hostnames that resolve to two IP addresses:
ns2.linode.com directs traffic to 92.123.94.3 and 2600:14c0:6::3.
ns4.linode.com directs traffic to 92.123.95.4 and 2600:14c0:7::4.
ns5.linode.com directs traffic to 92.123.95.2 and 2600:14c0:7::2.
d.ns.cns.su directs traffic to 88.198.54.27 and 2001:470:7240::d.
Hosts with just one IP address:
d.ns.fmt.su has the IP address 2001:470:7240::d.
Both d.ns.cns.su and d.ns.fmt.su resolve to 2001:470:7240::d IP addresses each.
Mail Servers
fmt.su has four mail servers, which are fmt.su, mx.fmt.su, a.mx.fmt.su and s.mx.fmt.su.
Hostnames that resolve to two IP addresses:
fmt.su directs traffic to 88.198.54.22 and 2001:470:7240::.
Hosts with just one IP address:
mx.fmt.su has the IP address 2001:470:7240::.
a.mx.fmt.su has the IP address 88.198.54.22.
s.mx.fmt.su has the IP address 88.198.54.27.
Both fmt.su and mx.fmt.su resolve to 2001:470:7240:: IP addresses each.
Both fmt.su and a.mx.fmt.su resolve to 88.198.54.22 IP addresses each.