doppel.dk
Last scanned: 2026-07-04 13:37:28  ·  1753ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   129ms
🌍 A Records1 records   132ms
📧 MX Records2 records   135ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover93.191.156.146
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   299ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records2 records   267ms
TXT Record
protonmail-verification=0a62be5833ef4fc4ab094bfbc83e9c9ca7cec135
v=spf1 include:_spf.protonmail.ch include:spf.simply.com -all
✉️ SPF
PolicyRecord (doppel.dk)
-all (hard fail) v=spf1 include:_spf.protonmail.ch include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.doppel.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
📬 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 / DANE4 records   122ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
🔐 DNSSEC261ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA128ms
FieldValue
Serial2025042300
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
129ms
A
132ms
MX
135ms
AAAA
131ms
TXT
267ms
CAA
126ms
HTTPS
122ms
TLSA
122ms
SOA
128ms
MTA-STS
120ms
DNSSEC
261ms
SRV
299ms
Total
1753ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-04 13:37:28 1753ms 3 NS 1 A 2 MX 🔒 Secure View
2026-06-24 08:54:18 729ms 3 NS 1 A 2 MX ⚠️ Bogus View
2026-06-17 04:15:25 2775ms 3 NS 1 A 2 MX 🔒 Secure View
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