dulfu.dk
Last scanned: 2026-08-27 14:56:32  ·  2770ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   73ms
🌍 A Records1 records   53ms
📧 MX Records5 records   64ms
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   333ms
TXT Record
v=spf1 +a +mx +ip4:46.4.121.70 include:relay.mailchannels.net include:_spf.google.com ~all
✉️ SPF
PolicyRecord (dulfu.dk)
~all (soft fail) v=spf1 +a +mx +ip4:46.4.121.70 include:relay.mailchannels.net include:_spf.google.com ~all
📨 DMARC
PolicyRecord (_dmarc.dulfu.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
📬 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.dulfu.dk 6ZAyxC2kXkTjaQqKSiOHa0XRO5lYbEMtfDwVQBjcEJo
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC2058ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026070901
Primary NS (MNAME)ns3.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
73ms
A
53ms
MX
64ms
AAAA
70ms
TXT
333ms
CAA
77ms
HTTPS
73ms
TLSA
83ms
SOA
0ms
MTA-STS
89ms
DNSSEC
2058ms
SRV
98ms
Total
2770ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 14:56:32 2770ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-08-26 17:41:26 984ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-08-25 03:57:19 2728ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-07-10 22:42:08 1505ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-07-01 23:49:29 2615ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-06-17 05:06:34 618ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-06-17 05:04:46 22897ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-06-17 05:00:53 2307ms 2 NS 1 A 5 MX 🔓 Insecure View
2026-06-17 05:00:38 723ms 2 NS 1 A 5 MX 🔓 Insecure View
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