tackmann.dk
📜 Historical scan 2026-06-24 14:26:45  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
NameserverIP addressesPTRASN / ISP
authns1.ngdc.net 2001:1448:0:a800::53
217.30.38.181		 authns1.ngdc.net
dns1.sentia.dk		 AS47292 Sentia Denmark A/S
AS47292 Sentia Denmark A/S
authns2.ngdc.net 2001:1448:0:a500::53
217.30.38.27		 authns2.ngdc.net
dns2.sentia.dk		 AS47292 Sentia Denmark A/S
AS47292 Sentia Denmark A/S
🌍 A Records1 records   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
217.116.238.10 86400s — AS47292 Sentia Denmark A/S 217.116.224.0/20 🇩🇰 Denmark —
📧 MX Records1 records   65ms
PriorityTTLMail ServerIP addressesPTRASN
5 21600s mail.tackmann.dk 217.116.238.10 — AS47292 Sentia Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC83ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA58ms
FieldValue
Serial2006013017
Primary NS (MNAME)authns1.ngdc.net
Responsible (RNAME)hostmaster@ngdc.net
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
39ms
A
34ms
MX
65ms
AAAA
64ms
TXT
294ms
CAA
43ms
HTTPS
63ms
TLSA
332ms
SOA
58ms
MTA-STS
62ms
DNSSEC
83ms
SRV
373ms
Total
1010ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 05:34:30 879ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-18 08:34:47 8666ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 14:26:45 1010ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 16:57:52 621ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 06:05:15 915ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-18 00:25:44 862ms 2 NS 1 A 1 MX 🔓 Insecure View
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