dht.dk
Last scanned: 2026-08-25 07:15:43  ·  9531ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   40ms
NameserverIP addressesPTRASN / ISP
ns1.onwelcom.dk 185.51.79.241 mail.onwelcom.dk AS205984 Powernet Aps
ns2.onwelcom.dk 185.51.79.251 — AS205984 Powernet Aps
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.51.79.250 86400s web01.onwelcom.dk AS205984 Powernet Aps 185.51.78.0/23 🇩🇰 Denmark —
📧 MX Records2 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mailfilter.onwelcom.dk 185.51.79.248 mailfilter.powernet.dk AS205984 Powernet Aps
20 86400s mx2.onwelcom.dk 185.51.79.248 mailfilter.powernet.dk AS205984 Powernet Aps
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover127.0.0.1
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   83ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 exchange.onwelcom.dk
📝 TXT Records1 records   157ms
TXT Record
v=spf1 a ip4:185.51.79.235 ip4:185.51.79.242 mx -all
✉️ SPF
PolicyRecord (dht.dk)
-all (hard fail) v=spf1 a ip4:185.51.79.235 ip4:185.51.79.242 mx -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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9098ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2016092723
Primary NS (MNAME)ns1.onwelcom.dk
Responsible (RNAME)hostmaster@dht.dk
Refresh3600s
Retry600s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
40ms
A
40ms
MX
48ms
AAAA
38ms
TXT
157ms
CAA
47ms
HTTPS
61ms
TLSA
78ms
SOA
0ms
MTA-STS
55ms
DNSSEC
9098ms
SRV
83ms
Total
9531ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 07:15:43 9531ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-07-02 13:30:50 555ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-24 20:26:07 684ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-21 12:24:09 1000ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 13:58:07 2694ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 02:46:26 388ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 02:40:15 557ms 2 NS 1 A 2 MX 🔓 Insecure View
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