filtertek.dk
📜 Historical scan 2026-06-17 09:48:46  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   93ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 records   101ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.178 — linux19.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records4 records   104ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx01.hornetsecurity.com 94.100.132.8 mx01.hornetsecurity.com AS25394 MK Netzdienste GmbH & Co. KG
20 — mx02.hornetsecurity.com 94.100.136.8 mx02.hornetsecurity.com AS24679 kyberio GmbH
30 — mx03.hornetsecurity.com 94.100.134.8 mx03.hornetsecurity.com AS12676 HKN GmbH
40 — mx04.hornetsecurity.com 94.100.136.7 mx04.hornetsecurity.com AS24679 kyberio GmbH
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records3 records   231ms
TXT Record
v=spf1 a mx include:spf.sfp-net.com ~all
v=spf1 include:spf.curanet.dk
v=spf1 include:spf.magepartner.net mx ip4:83.246.65.0/24 ip4:217.64.175.0/24 ip4:94.100.128.0/20 ~all
✉️ SPF
⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)
PolicyRecord (filtertek.dk)
~all (soft fail) v=spf1 a mx include:spf.sfp-net.com ~all
no all — incomplete SPF v=spf1 include:spf.curanet.dk
~all (soft fail) v=spf1 include:spf.magepartner.net mx ip4:83.246.65.0/24 ip4:217.64.175.0/24 ip4:94.100.128.0/20 ~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)
🔐 DNSSEC196ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA95ms
FieldValue
Serial2026042004
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
93ms
A
101ms
MX
104ms
AAAA
94ms
TXT
231ms
CAA
106ms
HTTPS
95ms
TLSA
114ms
SOA
95ms
MTA-STS
28ms
DNSSEC
196ms
SRV
0ms
Total
792ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 13:02:08 4807ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-19 18:21:32 1930ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-18 18:18:23 3286ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-23 16:44:07 702ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-20 06:17:49 797ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-17 09:48:46 792ms 2 NS 1 A 4 MX 🔒 Secure View
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