greatbooks.dk
Last scanned: 2026-08-15 09:19:38  ·  4032ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   249ms
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   272ms
IPTTLPTRASNISP / OrgCIDRCountryCity
192.38.32.248 43200s — AS1835 IDDQD-AS 192.38.0.0/17 🇩🇰 Denmark Aalborg
📧 MX Records1 records   241ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovergreatbooks.dk → 192.38.32.248
🔶 Autoconfiggreatbooks.dk → 192.38.32.248
🔷 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.greatbooks.dk greatbooks.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC477ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081301
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
249ms
A
272ms
MX
241ms
AAAA
234ms
TXT
578ms
CAA
256ms
HTTPS
241ms
TLSA
474ms
SOA
0ms
MTA-STS
341ms
DNSSEC
477ms
SRV
326ms
Total
4032ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-15 09:19:38 4032ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-15 12:47:32 1098ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 16:34:36 1758ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 14:53:38 779ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-22 11:51:47 3868ms 2 NS 1 A 1 MX ⚠️ Bogus View
2026-06-21 19:28:32 1161ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 19:12:25 1175ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 09:20:09 758ms 2 NS 1 A 0 MX 🔒 Secure View
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