0u.dk
Last scanned: 2026-08-25 22:37:09  ·  649ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   41ms
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   33ms
IPTTLPTRASNISP / OrgCIDRCountryCity
85.191.207.109 3600s — AS39642 Sinal A/S 85.191.128.0/17 🇩🇰 Denmark Aalborg
📧 MX Records1 records   43ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.0u.dk 85.191.207.109 — AS39642 Sinal A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover0u.dk → 85.191.207.109
🔶 Autoconfig0u.dk → 85.191.207.109
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   176ms
TXT Record
v=spf1 redirect=spf1.yey.dk
✉️ SPF
PolicyRecord (0u.dk)
no all — incomplete SPF v=spf1 redirect=spf1.yey.dk
📨 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.0u.dk 0u.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC78ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082401
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
41ms
A
33ms
MX
43ms
AAAA
40ms
TXT
176ms
CAA
47ms
HTTPS
49ms
TLSA
69ms
SOA
0ms
MTA-STS
60ms
DNSSEC
78ms
SRV
63ms
Total
649ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 22:37:09 649ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-24 20:33:18 2406ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-24 23:48:11 2609ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-23 23:08:26 49374ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-26 10:54:51 1463ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 18:23:31 1196ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 12:33:47 1017ms 2 NS 1 A 1 MX 🔒 Secure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone