mkbook.dk
📜 Historical scan 2026-06-27 04:53:06  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   36ms
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   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
167.99.37.86 600s — AS14061 DigitalOcean, LLC 167.99.0.0/16 🇳🇱 The Netherlands Amsterdam
📧 MX Records1 records   47ms
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)
🔐 DNSSEC70ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA39ms
FieldValue
Serial2026060901
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
36ms
A
53ms
MX
47ms
AAAA
46ms
TXT
143ms
CAA
41ms
HTTPS
33ms
TLSA
56ms
SOA
39ms
MTA-STS
54ms
DNSSEC
70ms
SRV
48ms
Total
486ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-10 06:39:29 1616ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-09 23:13:10 2066ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-07 20:34:33 555ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 04:53:06 486ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 23:43:13 1402ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 13:10:25 1924ms 2 NS 1 A 0 MX 🔒 Secure View
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