bookmaster.dk
📜 Historical scan 2026-07-31 03:43:46  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   29ms
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   29ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.211.38 600s domain-parking.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   29ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC2048ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026072901
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
29ms
A
29ms
MX
29ms
AAAA
28ms
TXT
2143ms
CAA
28ms
HTTPS
4028ms
TLSA
35ms
SOA
0ms
MTA-STS
2041ms
DNSSEC
2048ms
SRV
4031ms
Total
4528ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 05:37:06 1107ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-28 04:59:29 655ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-16 09:48:53 4636ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-31 03:43:46 4528ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-29 23:27:45 424ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 20:20:08 512ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 14:21:23 510ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 08:35:13 3955ms 2 NS 1 A 1 MX 🔓 Insecure View
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