frederikssund.dk
Last scanned: 2026-08-31 22:51:41  ·  741ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   40ms
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   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.237.125.92 43200s — AS210939 Procopa IT ApS 185.237.124.0/22 🇩🇰 Denmark Copenhagen
📧 MX Records3 records   53ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1-dk.centerasecurity.dk 128.76.60.167
128.76.60.187
89.233.19.127
89.233.19.127
89.233.19.188
89.233.19.188		 mx6.centerasecurity.dk
mx6.centerasecurity.dk
127.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk
188.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
10 3600s mx2-dk.centerasecurity.dk 128.76.60.168
128.76.60.169
89.233.19.128
89.233.19.128
89.233.19.129
89.233.19.129		 mx6.centerasecurity.dk
mx6.centerasecurity.dk
128.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk
129.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
30 3600s mx3-dk.centerasecurity.dk 128.76.60.187
89.233.19.129
89.233.19.129		 mx6.centerasecurity.dk
129.0-254.19.233.89.in-addr.arpa
mx14.centerasecurity.dk		 AS3292 TDC Holding A/S
AS3308 Norlys Digital A/S
AS3308 Norlys Digital A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover87.54.23.200
🔶 Autoconfigfrederikssund.dk → 185.237.125.92
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   73ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 0 0 5061 sipfed.online.lync.com
📝 TXT Records8 records   179ms
TXT Record
_globalsign-domain-verification=lQeUbb6T23XXGOfIEiQtCtTQybNL4sJaA9UpEwx2zQ
apple-domain-verification=J82kA1UahU7KKk8G
google-site-verification=hLA7DRg3UiWaOMZ9AeR4lMGKZdcFefuh-IFZIOUSYpM
GT/9DD4RL892E310tsqKaNRcHJqnq9bC7B78ZJ8aeX/GxqAL6S4mNs5VyXOqM3OfWLikIsQxJdwzQvq/cSUzgA==
MS=ms37147955
MS=ms77593104
tmes=1bf75e35a80a48646c5353b763aabf9e
v=spf1 ip4:109.238.52.0/25 ip4:89.104.206.160 ip4:195.50.36.0/22 ip4:195.50.43.0/24 ip4:195.50.44.0/22 ip4:195.50.48.0/22 ip4:34.251.115.175 ip4:193.111.162.2 ip4:185.21.40.55 ip4:185.158.62.153 ip4:87.54.23.198 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.ubivox.com include:_spf.centerasecurity.dk -all
✉️ SPF
PolicyRecord (frederikssund.dk)
-all (hard fail) v=spf1 ip4:109.238.52.0/25 ip4:89.104.206.160 ip4:195.50.36.0/22 ip4:195.50.43.0/24 ip4:195.50.44.0/22 ip4:195.50.48.0/22 ip4:34.251.115.175 ip4:193.111.162.2 ip4:185.21.40.55 ip4:185.158.62.153 ip4:87.54.23.198 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.ubivox.com include:_spf.centerasecurity.dk -all
📨 DMARC
PolicyRecord (_dmarc.frederikssund.dk)
p=reject v=DMARC1; p=reject; rua=mailto:64edbcac8583e@dmarc.centerasecurity.com; ruf=mailto:dmarc@frederikssund.dk; fo=1;
📬 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 / DANE6 records   77ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
🔐 DNSSEC74ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082805
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
40ms
A
48ms
MX
53ms
AAAA
30ms
TXT
179ms
CAA
34ms
HTTPS
46ms
TLSA
77ms
SOA
0ms
MTA-STS
55ms
DNSSEC
74ms
SRV
73ms
Total
741ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 22:51:41 741ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-31 05:57:30 2346ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-28 07:23:07 887ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-09 07:28:55 5292ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-07 20:59:48 2669ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-31 22:27:23 3381ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-30 06:46:33 815ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-29 21:36:23 1176ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-28 20:56:03 929ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-28 03:03:51 899ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-25 14:25:29 3418ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-24 02:40:02 1159ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 15:09:23 1139ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 11:55:57 987ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 09:48:32 947ms 2 NS 1 A 3 MX 🔒 Secure View
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