gapb.dk
📜 Historical scan 2026-06-17 09:28:18  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   2028ms
NameserverIP addressesPTRASN / ISP
buck.ns.cloudflare.com — — —
carlane.ns.cloudflare.com — — —
🌍 A Records
🌍
No A records found
📧 MX Records2 records   2028ms
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   2133ms
TXT Record
protonmail-verification=19c94d9e887fb9fba4a7ec5f39792a3d8c7c52cf
v=spf1 include:_spf.protonmail.ch mx ~all
✉️ SPF
PolicyRecord (gapb.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch mx ~all
📨 DMARC
PolicyRecord (_dmarc.gapb.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   41ms
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…
🔐 DNSSEC2066ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA2041ms
FieldValue
Serial2404271270
Primary NS (MNAME)buck.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
2028ms
A
2038ms
MX
2028ms
AAAA
2029ms
TXT
2133ms
CAA
2039ms
HTTPS
70ms
TLSA
41ms
SOA
2041ms
MTA-STS
48ms
DNSSEC
2066ms
SRV
0ms
Total
2733ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-29 11:30:04 1241ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-08-26 07:53:08 3187ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-08-24 14:35:26 1342ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-08-21 03:15:52 8074ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-07-15 14:01:28 1054ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-06-17 09:28:18 2733ms 2 NS 0 A 2 MX 🔓 Insecure View
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