first-aid-course.dk
Last scanned: 2026-09-11 13:52:11  ·  739ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   160ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   155ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.211.38 3600s domain-parking.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen
📧 MX Records4 records   135ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod12-cph3.one.com 104.37.34.246 mx1.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod12-cph3.one.com 104.37.34.247 mx2.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod12-cph3.one.com 104.37.34.248 mx3.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod12-cph3.one.com 104.37.34.249 mx4.pub.mailpod12-cph3.one.com AS51468 One.com A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 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   86ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com DANE-EE · SPKI · SHA-256 2CDDC5D748A3C02AC19FF7BC33AA01A5…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com DANE-EE · SPKI · SHA-256 2CDDC5D748A3C02AC19FF7BC33AA01A5…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com DANE-EE · SPKI · SHA-256 2CDDC5D748A3C02AC19FF7BC33AA01A5…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com DANE-EE · SPKI · SHA-256 2CDDC5D748A3C02AC19FF7BC33AA01A5…
🔐 DNSSEC200ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026090702
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
160ms
A
155ms
MX
135ms
AAAA
132ms
TXT
252ms
CAA
145ms
HTTPS
101ms
TLSA
86ms
SOA
0ms
MTA-STS
104ms
DNSSEC
200ms
SRV
161ms
Total
739ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-11 13:52:11 739ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-22 00:57:13 1449ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-09 22:54:16 966ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-08 15:08:51 1050ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-02 00:50:55 591ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-17 09:30:33 767ms 2 NS 1 A 4 MX 🔒 Secure View
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