cst-assistenten.dk
📜 Historical scan 2026-06-16 23:06:35  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   54ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 records   79ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.47.247.18 — one.com.webforward.g1i.one AS51468 One.com A/S 195.47.247.0/24 — —
📧 MX Records2 records   70ms
PriorityTTLMail ServerIP addressesPTRASN
0 — mxa.eu.mailgun.org 34.111.130.244 244.130.111.34.bc.googleusercontent.com AS396982 Google LLC
0 — mxb.eu.mailgun.org 34.111.130.244 244.130.111.34.bc.googleusercontent.com AS396982 Google LLC
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   248ms
TXT Record
v=spf1 include:mailgun.org include:_custspf.one.com ~all
✉️ SPF
PolicyRecord (cst-assistenten.dk)
~all (soft fail) v=spf1 include:mailgun.org include:_custspf.one.com ~all
📨 DMARC
PolicyRecord (_dmarc.cst-assistenten.dk)
p=quarantine v=DMARC1; p=quarantine;
📬 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
🏷️ SOA55ms
FieldValue
Serial2026060505
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
54ms
A
79ms
MX
70ms
AAAA
56ms
TXT
248ms
CAA
56ms
HTTPS
61ms
TLSA
41ms
SOA
55ms
MTA-STS
49ms
DNSSEC
196ms
SRV
0ms
Total
524ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 06:44:55 1681ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-05 10:28:13 1126ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-29 08:43:21 842ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-07 00:24:35 912ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-01 04:21:14 1116ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-29 01:36:41 595ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-27 02:02:39 674ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-26 11:33:54 663ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-16 23:06:35 524ms 2 NS 1 A 2 MX 🔒 Secure View
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