holkenhus.dk
Last scanned: 2026-08-30 03:58:51  ·  1964ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   127ms
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 Records
🌍
No A records found
📧 MX Records1 records   89ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.spamfilter.io 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.holkenhus.dk → 86.52.61.232
🔶 Autoconfigmail.holkenhus.dk → 86.52.61.232
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   143ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 mail.holkenhus.dk
📝 TXT Records1 records   389ms
TXT Record
v=spf1 mx:mx.spamfilter.io a:mail.holkenhus.dk ptr:86-52-61-232.norlyscustomer.net -all
✉️ SPF
PolicyRecord (holkenhus.dk)
-all (hard fail) v=spf1 mx:mx.spamfilter.io a:mail.holkenhus.dk ptr:86-52-61-232.norlyscustomer.net -all
📨 DMARC
PolicyRecord (_dmarc.holkenhus.dk)
p=reject v=DMARC1;p=reject;rua=mailto:dmarc@holkenhus.dk;ruf=mailto:dmarc@holkenhus.dk;
📬 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
TXT _acme-challenge.holkenhus.dk 0b1F6EDUl00AZqrRL5Pw0WmypBPHwj5oNnUlvJUf2l4
TXT _acme-challenge.holkenhus.dk 1JRUU9JkOOon-FWP0KogeRSB3oN3mnGVtDS1MXnjMu0
TXT _acme-challenge.holkenhus.dk 61vQdbG0_FXnbxBmfitafhKsyVa0AhjuuU2IKsk_VRU
TXT _acme-challenge.holkenhus.dk ATyxveEPjtrJKAIORf9MROfNp0vbHcR3Q2MfJwnPX9g
TXT _acme-challenge.holkenhus.dk AXS6JtWOZqPs-ZE0MqiVlUupVKV4KYsSWo_-SDq5GBE
TXT _acme-challenge.holkenhus.dk CKwl8olg1Vu3NehCo1I9oxL0c2Dg1vY0d6FkqpFyLa0
TXT _acme-challenge.holkenhus.dk cl6lXXcgcpZjcwcVNrlmGSM-K0dIK5kZma1MMJC2efI
TXT _acme-challenge.holkenhus.dk clHqdJJBXe1Mf5Ijd7e3rTfvBjRnXFtkBtXurqzLBqA
TXT _acme-challenge.holkenhus.dk DtR_Tv1wolV482WIIbZNgenR8iV9-F1sKVC5SuB5Hdg
TXT _acme-challenge.holkenhus.dk G73YSRm03_6B2xEZnu1uYEGolIPQR7kNIE82V-brjrQ
TXT _acme-challenge.holkenhus.dk K5-68G923rtbCdQn5E7qzltlCu9BeANvBwzMUmh7bpU
TXT _acme-challenge.holkenhus.dk kMwSyWCK4WQ9HetnFl802816AX98NYaezJu9Tpi5-4I
TXT _acme-challenge.holkenhus.dk lg78WyP_WZ-6GPMPVcaB58r0-PaYQ4K9AxeyjfbKqvk
TXT _acme-challenge.holkenhus.dk okxWW_HeyNeyxVN-EvVOEP9aom8LTKylNWzdKyT6EU8
TXT _acme-challenge.holkenhus.dk tfyhY2CSbUEowu3quOhHHEu9EyX8UQ6az3Ycb43u4k0
TXT _acme-challenge.holkenhus.dk UtiN-dfBnkWLdIJLzblV12WKAt_8oPakmporfQaShMo
TXT _acme-challenge.holkenhus.dk vdloeQ05RHlwkjer_mg1lRHdrablzQe8ScSCa0jg3YM
TXT _acme-challenge.holkenhus.dk y0aG7MDJ8Sg12QhCRKT82r1sjWwiRW0sNoJAHlqadpo
TXT _acme-challenge.holkenhus.dk yLhUXAYcr8J483Sv_HZmvg32-H3O-z4I_chHd8xH5P0
TXT _acme-challenge.holkenhus.dk zexbVY32L6CbJ32_unC-mswckLD1auP1P7DwE7DVCQM
🔗 TLSA / DANE1 records   97ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.spamfilter.io DANE-EE · SPKI · SHA-256 9A25F05F2E322DABDCC9B7A06AB47A2D…
🔐 DNSSEC282ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2026082800
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
127ms
A
77ms
MX
89ms
AAAA
95ms
TXT
389ms
CAA
71ms
HTTPS
80ms
TLSA
97ms
SOA
0ms
MTA-STS
115ms
DNSSEC
282ms
SRV
143ms
Total
1964ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 03:58:51 1964ms 4 NS 0 A 1 MX 🔒 Secure View
2026-08-28 10:16:51 708ms 4 NS 0 A 1 MX 🔒 Secure View
2026-08-23 18:49:15 1261ms 4 NS 0 A 1 MX 🔒 Secure View
2026-08-07 00:17:00 1043ms 4 NS 0 A 1 MX 🔒 Secure View
2026-07-02 16:06:43 5002ms 4 NS 0 A 1 MX 🔒 Secure View
2026-06-24 02:07:02 1082ms 4 NS 0 A 1 MX 🔒 Secure View
2026-06-17 11:52:09 2882ms 4 NS 0 A 1 MX 🔒 Secure View
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