flexundervisning.dk
📜 Historical scan 2026-06-17 09:49:31  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   135ms
NameserverIP addressesPTRASN / ISP
ns4.dns-123.net — — —
ns5.dns-123.net — — —
ns6.dns-123.net — — —
🌍 A Records1 records   153ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.186.164.155 — server7155.serverpark.dk AS44869 FIBIA P/S 5.186.0.0/16 🇩🇰 Denmark Frederiksberg
📧 MX Records1 records   151ms
PriorityTTLMail ServerIP addressesPTRASN
10 — server7155.serverpark.dk 5.186.164.155 server7155.serverpark.dk AS44869 FIBIA P/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   320ms
TXT Record
v=spf1 a mx include:_spf.serverpark.dk ~all
✉️ SPF
PolicyRecord (flexundervisning.dk)
~all (soft fail) v=spf1 a mx include:_spf.serverpark.dk ~all
📨 DMARC
PolicyRecord (_dmarc.flexundervisning.dk)
p=none (monitor only) v=DMARC1; p=none;
📬 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)
🔐 DNSSEC216ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA146ms
FieldValue
Serial2025061601
Primary NS (MNAME)ns4.dns-123.net
Responsible (RNAME)admin@dns-123.net
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
135ms
A
153ms
MX
151ms
AAAA
127ms
TXT
320ms
CAA
138ms
HTTPS
122ms
TLSA
85ms
SOA
146ms
MTA-STS
73ms
DNSSEC
216ms
SRV
0ms
Total
722ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 03:44:14 934ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-25 11:36:36 2477ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-24 01:37:42 719ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-19 15:02:20 2789ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-17 09:49:31 722ms 3 NS 1 A 1 MX 🔒 Secure View
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