mail.usrtech.dk - dns.ninja

mail.usrtech.dk

DNSSEC⚠️ Not signed
A172.104.203.63🇩🇪 AKAMAI-LINODE-AP172.104.202.0/23 Akamai Technologies
PTRmail.weblarsen.dk

usrtech.dk

DNSSEC🔒 Signed (DS record present)
A172.104.203.63🇩🇪 AKAMAI-LINODE-AP172.104.202.0/23 Akamai Technologies
NSns01.one.com ⭐
NSns02.one.com
MXmail.usrtech.dk ⭐
MXmxbackup.usrtech.dk(20)
TXTv=spf1 mx ip4:172.104.152.106 ip4:139.162.130.163 ip4:172.104.203.63 -all
TXTHosted by Weblarsen
SOAns01.one.comhostmaster@one.com 2026-03-25 #1

MX for

usrtech.dk

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A172.104.203.6389.221.166.114
●A172.104.203.632026-02-15 → 2026-08-09 · 3 obs
○ 2017-01-02 18:06:18
● 2026-02-15 04:01:36
● 2026-08-09 23:32:26
○A89.221.166.1142015-07-26 → 2017-01-02 · 4 obs
● 2015-07-26 04:12:38
● 2017-01-02 18:06:18
○ 2026-02-15 04:01:36
○ 2026-08-09 23:32:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
usrtech.dkns01.one.com, ns02.one.com-

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 932ms | Queries: -

📄 Records

TypeCountSample Data
A1172.104.203.63

Analysis

Mail Server Role

The mail server mail.usrtech.dk processes email for usrtech.dk.

mxbackup.usrtech.dk is a mail server commonly deployed alongside mail.usrtech.dk.

IP Addresses

mail.usrtech.dk resolves to just one IP address, 172.104.203.63.

Two other host names, along with weblarsen.dk, mxbackup.usrtech.dk and mail.spamwatch.dk, also share IP numbers with mail.usrtech.dk.