tnu.dk
Last scanned: 2026-08-12 07:00:18  ·  779ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   88ms
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   74ms
IPTTLPTRASNISP / OrgCIDRCountryCity
152.53.238.209 21600s v2202601329288424748.supersrv.de AS197540 netcup GmbH 152.53.236.0/22 🇩🇪 Germany Nuremberg
📧 MX Records1 records   62ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover152.53.238.209
🔶 Autoconfig152.53.238.209
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   188ms
TXT Record
v=spf1 +a +mx +a:v2202601329288424748.supersrv.de -all
✉️ SPF
PolicyRecord (tnu.dk)
-all (hard fail) v=spf1 +a +mx +a:v2202601329288424748.supersrv.de -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
TXT _acme-challenge.tnu.dk c1KT4fy_ERJGBYGQQvBmn6VRrX9d5bZN0bRZBTu5h1E
TXT _acme-challenge.tnu.dk tIbFkvb9PFxnjY_Bc_0WvrPzNukSz0ctYd-N2k9kdtA
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC211ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081101
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
88ms
A
74ms
MX
62ms
AAAA
104ms
TXT
188ms
CAA
84ms
HTTPS
102ms
TLSA
226ms
SOA
0ms
MTA-STS
85ms
DNSSEC
211ms
SRV
119ms
Total
779ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-12 07:00:18 779ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-17 23:15:49 8786ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-12 21:44:34 590ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-28 03:56:19 713ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 04:27:05 1176ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-22 14:44:25 665ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 11:37:22 1014ms 2 NS 1 A 0 MX 🔒 Secure View
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