olc.dk
📜 Historical scan 2026-06-19 20:47:54  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   40ms
🌍 A Records
🌍
No A records found
📧 MX Records2 records   44ms
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   190ms
TXT Record
v=spf1 ip4:144.91.73.106 a:mail.olc.dk include:spf.smtp2go.com ~all
✉️ SPF
PolicyRecord (olc.dk)
~all (soft fail) v=spf1 ip4:144.91.73.106 a:mail.olc.dk include:spf.smtp2go.com ~all
📨 DMARC
PolicyRecord (_dmarc.olc.dk)
p=none (monitor only) v=DMARC1; p=none; sp=none; ri=86400; rua=mailto:abuse@olc.dk;
📬 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)
🔐 DNSSEC86ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA34ms
FieldValue
Serial2407379995
Primary NS (MNAME)damien.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
40ms
A
41ms
MX
44ms
AAAA
35ms
TXT
190ms
CAA
35ms
HTTPS
35ms
TLSA
139ms
SOA
34ms
MTA-STS
107ms
DNSSEC
86ms
SRV
68ms
Total
702ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 01:27:20 2462ms 2 NS 0 A 2 MX 🔒 Secure View
2026-08-25 09:24:38 2405ms 2 NS 0 A 2 MX 🔒 Secure View
2026-08-18 22:14:30 5211ms 2 NS 0 A 2 MX 🔒 Secure View
2026-08-10 04:00:26 4414ms 2 NS 0 A 2 MX 🔒 Secure View
2026-08-06 20:16:44 2490ms 2 NS 0 A 2 MX 🔒 Secure View
2026-07-17 14:28:49 12570ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-25 02:10:54 5777ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-19 20:47:54 702ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-18 03:50:29 1276ms 2 NS 0 A 2 MX 🔒 Secure View
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