rulebooks.dk
Last scanned: 2026-08-28 10:26:16  ·  850ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   40ms
NameserverIP addressesPTRASN / ISP
ns1.eurodns.com 199.167.66.107
2610:1c8:b002::107		 ns1.eurodns.com
ns1.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns2.eurodns.com 104.37.178.107
2610:1c8:b001::107		 ns2.eurodns.com
ns2.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns3.eurodns.com 199.167.66.108
2610:1c8:b002::108		 ns3.eurodns.com
ns3.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns4.eurodns.com 104.37.178.108
2610:1c8:b001::108		 ns4.eurodns.com
ns4.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
🌍 A Records3 records   44ms
IPTTLPTRASNISP / OrgCIDRCountryCity
172.232.14.230 600s 172-232-14-230.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.232.0.0/18 🇺🇸 United States Chicago
172.233.213.178 600s 172-233-213-178.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.233.0.0/16 🇺🇸 United States Chicago
172.234.26.227 600s 172-234-26-227.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.234.0.0/16 🇺🇸 United States Chicago
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverrulebooks.dk → 172.234.26.227
🔶 Autoconfigrulebooks.dk → 172.232.14.230
🔷 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.rulebooks.dk rulebooks.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC83ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082400
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
40ms
A
44ms
MX
45ms
AAAA
39ms
TXT
202ms
CAA
37ms
HTTPS
47ms
TLSA
66ms
SOA
0ms
MTA-STS
66ms
DNSSEC
83ms
SRV
94ms
Total
850ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 10:26:16 850ms 4 NS 3 A 0 MX 🔓 Insecure View
2026-08-26 09:06:53 771ms 4 NS 3 A 0 MX 🔓 Insecure View
2026-08-24 15:59:44 2121ms 4 NS 3 A 0 MX 🔓 Insecure View
2026-07-02 10:10:18 2068ms 4 NS 1 A 0 MX 🔓 Insecure View
2026-06-20 07:09:23 766ms 4 NS 1 A 0 MX 🔓 Insecure View
2026-06-17 14:33:42 1150ms 4 NS 1 A 0 MX 🔓 Insecure View
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