siboni.dk
📜 Historical scan 2026-06-26 08:25:10  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   34ms
🌍 A Records2 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.37.39 600s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.203.185 600s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records1 records   77ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover104.21.37.39
🔶 Autoconfig104.21.37.39
🔷 AAAA Records (IPv6)2 records   47ms
🔐 HTTPS Records1 records   79ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=188.114.96.3,188.114.97.3 ech=AEX+DQBBqwAgACBaFHFqKpl+NF6G2VTLepMMpcoBsz+C+ojpJ3gfulHeOgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::3,2a06:98c1:3121::3
🔌 SRV Records1 records   101ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records2 records   152ms
TXT Record
MS=ms63410383
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (siboni.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.siboni.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:f3542e03c1c04a9b86e171a10478bdf4@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 / DANE2 records   414ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
🔐 DNSSEC67ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA37ms
FieldValue
Serial2407874268
Primary NS (MNAME)fatima.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
34ms
A
38ms
MX
77ms
AAAA
47ms
TXT
152ms
CAA
54ms
HTTPS
79ms
TLSA
414ms
SOA
37ms
MTA-STS
34ms
DNSSEC
67ms
SRV
101ms
Total
1265ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-13 01:58:13 1045ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-10 13:12:37 1000ms 2 NS 2 A 1 MX ❓ Unknown View
2026-07-27 03:28:45 9825ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-07-20 06:05:31 1420ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-07-17 19:17:34 8889ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-07-03 18:44:09 941ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-26 08:25:10 1265ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-19 21:37:02 947ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 11:48:00 936ms 2 NS 2 A 1 MX 🔓 Insecure View
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