usrtech.dk
Last scanned: 2026-08-03 08:23:44  ·  4770ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   31ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
172.104.203.63 3600s mail.weblarsen.dk AS63949 Akamai Connected Cloud 172.104.202.0/23 🇩🇪 Germany Frankfurt am Main
📧 MX Records2 records   33ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.usrtech.dk 172.104.203.63 mail.weblarsen.dk AS63949 Akamai Connected Cloud
20 3600s mxbackup.usrtech.dk 172.104.203.63 mail.weblarsen.dk AS63949 Akamai Connected Cloud
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover172.104.203.63
🔶 Autoconfig172.104.203.63
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   245ms
TXT Record
Hosted by Weblarsen
v=spf1 mx ip4:172.104.152.106 ip4:139.162.130.163 ip4:172.104.203.63 -all
✉️ SPF
PolicyRecord (usrtech.dk)
-all (hard fail) v=spf1 mx ip4:172.104.152.106 ip4:139.162.130.163 ip4:172.104.203.63 -all
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.usrtech.dk _acme-challenge.spamwatch.dk
TXT _acme-challenge.spamwatch.dk _gzoaeHOui7f_mewXQ5zNOO59cmapduK7sBOImnu_3s
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC53ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA15ms
FieldValue
Serial2026032501
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
31ms
A
32ms
MX
33ms
AAAA
32ms
TXT
245ms
CAA
29ms
HTTPS
31ms
TLSA
61ms
SOA
15ms
MTA-STS
45ms
DNSSEC
53ms
SRV
47ms
Total
4770ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-03 08:23:44 4770ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-21 23:20:47 636ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-18 05:15:43 890ms 2 NS 1 A 2 MX 🔒 Secure View
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