r37.dk
Last scanned: 2026-07-02 07:41:18  ·  2119ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   185ms
🌍 A Records
🌍
No A records found
📧 MX Records2 records   184ms
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   355ms
TXT Record
protonmail-verification=f2b15eeb09feb5db57902805e21c7368e2be4c41
v=spf1 include:_spf.protonmail.ch ~all
✉️ SPF
PolicyRecord (r37.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch ~all
📨 DMARC
PolicyRecord (_dmarc.r37.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 / DANE4 records   313ms
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…
🔐 DNSSEC272ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA211ms
FieldValue
Serial1
Primary NS (MNAME)ns1-09.azure-dns.com
Responsible (RNAME)azuredns-hostmaster@microsoft.com
Refresh3600s
Retry300s
Expire2419200s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
185ms
A
196ms
MX
184ms
AAAA
194ms
TXT
355ms
CAA
178ms
HTTPS
193ms
TLSA
313ms
SOA
211ms
MTA-STS
226ms
DNSSEC
272ms
SRV
235ms
Total
2119ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-02 07:41:18 2119ms 4 NS 0 A 2 MX 🔓 Insecure View
2026-06-24 16:56:19 3649ms 4 NS 0 A 2 MX ❓ Unknown View
2026-06-23 16:43:07 1170ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 02:02:07 840ms 4 NS 0 A 2 MX 🔓 Insecure View
2026-06-18 06:03:21 975ms 4 NS 0 A 2 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone