doppel.dk
📜 Historical scan 2026-06-17 04:15:25  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   76ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com — — —
ns2.simply.com — — —
ns3.simply.com — — —
🌍 A Records1 records   84ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.191.156.146 — linux261.unoeuro.com AS48854 team.blue Denmark A/S 93.191.152.0/21 🇩🇰 Denmark —
📧 MX Records2 records   76ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
20 — mailsec.protonmail.ch 176.119.200.129
185.205.70.129
185.70.42.129		 mailsec.protonmail.ch
mailsec.protonmail.ch
mailsec.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   229ms
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   69ms
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…
🔐 DNSSEC208ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA79ms
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
76ms
A
84ms
MX
76ms
AAAA
87ms
TXT
229ms
CAA
81ms
HTTPS
75ms
TLSA
69ms
SOA
79ms
MTA-STS
62ms
DNSSEC
208ms
SRV
0ms
Total
2775ms
🕐 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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