a.mx.doi.su - dns.ninja
a.mx.doi.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 88.198.54.22🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | static.88-198-54-22.clients.your-server.de | ||||||
| TXT | v=spf1 -all | ||||||
mx.doi.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:470:7240::🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| TXT | v=spf1 a mx -all | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A88.198.54.222026-02-17 → 2026-06-13 · 2 obs
● 2026-02-17 04:10:14
● 2026-06-13 16:22:30
● 2026-06-13 16:22:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net, b.dns.ripn.net... | 10 records |
| doi.su | ns4.linode.com, ns2.linode.com, ns5.linode.com | - |
✅ Authoritative Response
Server:92.123.95.2
NS records: ns4.linode.com, ns2.linode.com, ns5.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doi.su (unsigned zone)
⏱️ Timing
Total: 1263ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.198.54.22 |
| TXT | 1 | v=spf1 -all |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
Mail Server Role
a.mx.doi.su is used as a mail server for doi.su.
doi.su, mx.doi.su and s.mx.doi.su are often deployed as mail servers in conjunction with a.mx.doi.su.
IP Addresses
a.mx.doi.su resolves to just one IP address, 88.198.54.22.
Two other host names, along with a.mx.uxr.su, rtfm.su and dxr.su, also share IP numbers with a.mx.doi.su.