dortekluwer.dk
Last scanned: 2026-08-26 18:36:50  ·  693ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   53ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   49ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.237.249.12 3600s lb1.builder.nu AS48854 team.blue Denmark A/S 212.237.248.0/23 🇩🇰 Denmark —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   187ms
TXT Record
v=spf1 include:spf.simply.com ?all
✉️ SPF
PolicyRecord (dortekluwer.dk)
?all (neutral) v=spf1 include:spf.simply.com ?all
📨 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)
🔐 DNSSEC141ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2021060900
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
53ms
A
49ms
MX
39ms
AAAA
32ms
TXT
187ms
CAA
58ms
HTTPS
44ms
TLSA
56ms
SOA
0ms
MTA-STS
99ms
DNSSEC
141ms
SRV
76ms
Total
693ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 18:36:50 693ms 4 NS 1 A 0 MX 🔒 Secure View
2026-08-26 00:40:05 573ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-20 20:21:06 448ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-20 00:34:34 881ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-17 04:15:09 563ms 4 NS 1 A 0 MX 🔒 Secure View
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