helmholt.dk
Last scanned: 2026-08-26 07:47:22  ·  517ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   59ms
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   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.215.244.237 3600s — AS3292 TDC Holding A/S 195.215.0.0/16 🇩🇰 Denmark Copenhagen
📧 MX Records3 records   42ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s scanner01.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
20 3600s scanner02.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
30 3600s scanner03.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.56
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   62ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 remote.helmholt.dk
📝 TXT Records2 records   137ms
TXT Record
google-site-verification=6f2llWVejVHPDFyethqr4BNaKKyeOmODWnwNO-YuGJc
v=spf1 include:_spf.resennet.dk ip4:195.215.244.234 ip4:195.215.244.237 include:spf.protection.outlook.com include:spf.smtp2go.com -all
✉️ SPF
PolicyRecord (helmholt.dk)
-all (hard fail) v=spf1 include:_spf.resennet.dk ip4:195.215.244.234 ip4:195.215.244.237 include:spf.protection.outlook.com include:spf.smtp2go.com -all
📨 DMARC
PolicyRecord (_dmarc.helmholt.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)
🔐 DNSSEC80ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081402
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
59ms
A
46ms
MX
42ms
AAAA
44ms
TXT
137ms
CAA
33ms
HTTPS
58ms
TLSA
64ms
SOA
0ms
MTA-STS
54ms
DNSSEC
80ms
SRV
62ms
Total
517ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 07:47:22 517ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-14 17:55:42 932ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-20 15:59:34 1243ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-17 11:21:39 645ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-17 11:14:44 809ms 2 NS 1 A 3 MX 🔒 Secure View
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