holma.dk
Last scanned: 2026-08-30 14:51:24  ·  1058ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   31ms
🌍 A Records1 records   35ms
📧 MX Records2 records   32ms
🔷 AAAA Records (IPv6)1 records   29ms
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   124ms
TXT Record
protonmail-verification=5b134244b9b5cd3894ca6ba0c60dbde2067d6d78
v=spf1 include:_spf.protonmail.ch ~all
✉️ SPF
PolicyRecord (holma.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch ~all
📨 DMARC
PolicyRecord (_dmarc.holma.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   172ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
🔐 DNSSEC96ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026083001
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
31ms
A
35ms
MX
32ms
AAAA
29ms
TXT
124ms
CAA
26ms
HTTPS
34ms
TLSA
172ms
SOA
0ms
MTA-STS
36ms
DNSSEC
96ms
SRV
32ms
Total
1058ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 14:51:24 1058ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-28 07:33:08 2491ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-19 01:59:51 6629ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-16 03:48:12 3770ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-01 03:18:09 9170ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-29 23:14:43 793ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-29 02:04:18 638ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-25 12:51:36 2309ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-17 13:59:53 2983ms 2 NS 1 A 2 MX 🔒 Secure View
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