heldbos.dk
📜 Historical scan 2026-06-17 11:08:11  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   50ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   49ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.191.155.37 — splash.zitcom.dk AS48854 team.blue Denmark A/S 93.191.152.0/21 🇩🇰 Denmark —
📧 MX Records2 records   65ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 — mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   145ms
TXT Record
v=spf1 include:spf.onlinemail.io ?all
✉️ SPF
PolicyRecord (heldbos.dk)
?all (neutral) v=spf1 include:spf.onlinemail.io ?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)
🔐 DNSSEC459ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA45ms
FieldValue
Serial2021111701
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
50ms
A
49ms
MX
65ms
AAAA
61ms
TXT
145ms
CAA
161ms
HTTPS
44ms
TLSA
77ms
SOA
45ms
MTA-STS
48ms
DNSSEC
459ms
SRV
0ms
Total
1092ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 16:56:33 607ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-24 15:44:27 2261ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-22 12:07:51 1079ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 17:29:22 1192ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-17 11:08:11 1092ms 2 NS 1 A 2 MX 🔒 Secure View
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