securityone.dk
📜 Historical scan 2026-07-06 22:18:37  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   184ms
🌍 A Records2 records   172ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.28.254 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.171.51 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   184ms
🔐 HTTPS Records1 records   200ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.28.254,172.67.171.51 ech=AEX+DQBB/QAgACAjTC0OTCvLcMifGKBO0VgDzzBIYwTBUQ9srWRDpzS4FwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:ab33,2606:4700:3034::6815:1cfe
📝 TXT Records1 records   368ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (securityone.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.securityone.dk)
p=reject v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:58109ec6da8b43c18ffe363630e23f75@dmarc-reports.cloudflare.net
📬 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)
🔐 DNSSEC287ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2408743441
Primary NS (MNAME)fay.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
184ms
A
172ms
MX
183ms
AAAA
184ms
TXT
368ms
CAA
185ms
HTTPS
200ms
TLSA
158ms
SOA
0ms
MTA-STS
231ms
DNSSEC
287ms
SRV
219ms
Total
1386ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 21:02:31 2379ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-27 18:25:32 535ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-24 23:42:51 8651ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-22 21:09:28 1575ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-18 20:25:25 3126ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-03 08:40:54 761ms 2 NS 2 A 0 MX 🔒 Secure View
2026-07-26 17:59:59 839ms 2 NS 2 A 0 MX 🔒 Secure View
2026-07-06 22:18:37 1386ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-26 19:22:18 840ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-20 23:22:01 1021ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-17 13:29:30 2888ms 2 NS 2 A 0 MX 🔒 Secure View
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