frubber.dk
Last scanned: 2026-08-31 14:01:49  ·  16349ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   30ms
NameserverIP addressesPTRASN / ISP
ns1.sdu.dk 130.225.155.136 ns1.sdu.dk AS1835 IDDQD-AS
ns2.sdu.dk 130.225.155.148 ns2.sdu.dk AS1835 IDDQD-AS
ns3.sdu.dk 193.163.227.4 ns3.sdu.dk AS44328 Region Syddanmark
🌍 A Records
🌍
No A records found
📧 MX Records1 records   34ms
PriorityTTLMail ServerIP addressesPTRASN
0 28800s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   251ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (frubber.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.frubber.dk)
p=reject v=DMARC1; p=reject; sp=reject;
📬 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)
🔐 DNSSEC95ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial75
Primary NS (MNAME)ns1.sdu.dk
Responsible (RNAME)dns@sdu.dk
Refresh10800s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
30ms
A
25ms
MX
34ms
AAAA
22ms
TXT
251ms
CAA
37ms
HTTPS
16033ms
TLSA
59ms
SOA
0ms
MTA-STS
79ms
DNSSEC
95ms
SRV
122ms
Total
16349ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 14:01:49 16349ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-27 21:06:34 16430ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-26 18:36:48 4389ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-24 13:03:12 3143ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-19 23:50:45 14950ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-17 17:49:37 4456ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-11 14:32:26 4509ms 3 NS 0 A 1 MX 🔒 Secure View
2026-08-03 11:33:01 4854ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-27 04:22:55 10684ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-26 04:06:56 2518ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-20 13:49:25 8591ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-18 22:58:58 12610ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-14 22:49:55 10382ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-07 03:27:58 3716ms 3 NS 0 A 1 MX 🔒 Secure View
2026-07-03 10:48:40 4534ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-29 18:52:28 4354ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-25 23:33:16 4410ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-22 23:48:40 6703ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-20 17:39:15 4713ms 3 NS 0 A 1 MX 🔒 Secure View
2026-06-17 10:11:53 3560ms 3 NS 0 A 0 MX 🔒 Secure View
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