alter.su - dns.ninja
alter.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=650209363 | ||||||
Subdomains
mail.alter.su |
Same first word
Similar names
DNS History
9 records (9 active, 0 former)
●NSfirstbytedns.net2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns1.firstbytedns.net2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns1.firstbytedns.ru2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns2.firstbytedns.net2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns2.firstbytedns.ru2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns3.firstbytedns.net2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●NSns3.firstbytedns.ru2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●MXmail.alter.su2026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
●A185.40.4.1522026-04-23 → 2026-06-05 · 2 obs
● 2026-06-05 09:19:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | f.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net... | - |
| alter.su | ns3.firstbytedns.net, ns2.firstbytedns.net, ns1.firstbytedns.net | - |
✅ Authoritative Response
Server:185.104.248.27
NS records: ns3.firstbytedns.net, ns2.firstbytedns.net, ns1.firstbytedns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alter.su (unsigned zone)
⏱️ Timing
Total: 1918ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.40.4.152 |
| NS | 6 | ns1.firstbytedns.net, ns2.firstbytedns.ru... |
| MX | 2 | mail.alter.su (pri: 20), mail.alter.su (pri: 10) |
| SOA | 1 | firstbytedns.net altersu.ornithosoft.ru |
Analysis
Hierarchy
alter.su is a parent domain of mail.alter.su.
IP Addresses
alter.su directs to one IP number, which is 185.40.4.152.
mail.alter.su, for instance, is one of the other host names sharing IP numbers with alter.su.
Name Servers
alter.su is delegated to 7 name servers: firstbytedns.net, ns1.firstbytedns.net, ns2.firstbytedns.net and four others.
alter.su shares at least some of its name servers with other domains, including mosoblgid.ru, p2pmachine.com, 73.252.84.in-addr.arpa and two others.
These name servers are routinely co-deployed with the name servers ns3.firstbytedns.net, ns1.firstbytedns.ru, ns2.firstbytedns.ru and two others.
Hosts with two IP numbers each:
ns1.firstbytedns.net directs traffic to 185.104.248.26 and 2a04:5200:ffff::320b.
ns2.firstbytedns.net directs traffic to 185.104.248.27 and 2a04:5200:ffff::35de.
ns3.firstbytedns.net directs traffic to 185.180.230.222 and 2a04:5200:ffff::115d.
ns1.firstbytedns.ru directs traffic to 185.104.248.26 and 2a04:5200:ffff::320b.
ns2.firstbytedns.ru directs traffic to 185.104.248.27 and 2a04:5200:ffff::35de.
ns3.firstbytedns.ru directs traffic to 185.180.230.222 and 2a04:5200:ffff::115d.
Both ns1.firstbytedns.net and ns1.firstbytedns.ru resolve to 2a04:5200:ffff::320b IP addresses each.
Both ns1.firstbytedns.net and ns1.firstbytedns.ru resolve to 185.104.248.26 IP addresses each.
Both ns2.firstbytedns.net and ns2.firstbytedns.ru resolve to 2a04:5200:ffff::35de IP addresses each.
Both ns2.firstbytedns.net and ns2.firstbytedns.ru resolve to 185.104.248.27 IP addresses each.
Both ns3.firstbytedns.net and ns3.firstbytedns.ru resolve to 2a04:5200:ffff::115d IP addresses each.
Both ns3.firstbytedns.net and ns3.firstbytedns.ru resolve to 185.180.230.222 IP addresses each.
Mail Servers
alter.su routes its mail through a single mail server, mail.alter.su.
mail.alter.su directs to just one IP number, 185.40.4.152.