mail.alter.su - robtex.com

mail.alter.su

DNSSEC⚠️ Not signed
A185.40.4.152🇷🇺 UNSPECIFIED160.0.0.0/3
PTRfree.ds

alter.su

DNSSEC⚠️ Not signed
A185.40.4.152🇷🇺 UNSPECIFIED160.0.0.0/3
NSfirstbytedns.net ⭐
NSns1.firstbytedns.net
NSns1.firstbytedns.ru ⚠️ Not in parent delegation
NSns2.firstbytedns.net
NSns2.firstbytedns.ru ⚠️ Not in parent delegation
NSns3.firstbytedns.net
NSns3.firstbytedns.ru ⚠️ Not in parent delegation
MXmail.alter.su(20)
SOAfirstbytedns.netaltersu@ornithosoft.ru 2026-03-17 #0

MX for

alter.su

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DNS History

1 record (1 active, 0 former)

A185.40.4.152
●A185.40.4.1522026-04-23 → 2026-04-24 · 2 obs
● 2026-04-23 14:07:28
● 2026-04-24 21:08:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sub.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net...10 records
alter.suns1.firstbytedns.net, ns2.firstbytedns.net, ns3.firstbytedns.net-

✅ Authoritative Response

Server:185.180.230.222

NS records: ns1.firstbytedns.net, ns2.firstbytedns.net, ns3.firstbytedns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alter.su (unsigned zone)

⏱️ Timing

Total: 1815ms | Queries: -

📄 Records

TypeCountSample Data
A1185.40.4.152

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (b.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net...)

Analysis

Mail Server Role

mail.alter.su handles mail for alter.su.

IP Addresses

mail.alter.su points to a single IP address: 185.40.4.152.

Other host names, for instance alter.su, share IP numbers with mail.alter.su.