helsingor.dk
Last scanned: 2026-08-29 01:02:02  ·  1098ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   34ms
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   35ms
IPTTLPTRASNISP / OrgCIDRCountryCity
167.235.95.185 600s static.185.95.235.167.clients.your-server.de AS24940 Hetzner Online GmbH 167.235.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records3 records   29ms
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
20 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
🔷 Autodiscover185.81.116.35
🔷 AAAA Records (IPv6)1 records   34ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:4f8:2220:1b48::2 600s — AS24940 Hetzner Online GmbH 2a01:4f8:0:0:0:0:0:0/31 🇩🇪 Germany Falkenstein
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   53ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 0 0 5061 sipfed.online.lync.com
📝 TXT Records9 records   139ms
TXT Record
_hg5fuuvmuy2wbcti5ez929xw9uva85c
_o73af5jtrt4zuc0nv2cz6udpsp31g5w
153j27d5p11wxtrrqgpg7gf9g5v10s3d
89dbddad699c46e0b623ee3b065ddaea
google-site-verification=HT78XFgmjk0Nb00Xp6-vAGBCI8mENcD3zW6825GpH1A
kwy2w5jc8jvcfx0zljz9421lsd2lt172
MS=ms97430916
s9jlgmm8gk9jr4kx22fpzxnm1901lt4w
v=spf1 include:_spf.centerasecurity.dk include:spf.ubivox.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.topdesk.net include:spam.4dim.as include:spf.mailjet.com a:mail.halbooking.dk include:spf.protection.outlook.com ip4:185.99.120.0/24 ip4:185.99.121.0/24 ip4:185.99.122.0/24 ip4:185.99.123.0/24 ip4:185.163.188.0/24 ip4:185.163.189.0/24 ip4:185.163.190.0/24 ip4:185.163.191.0/24 ip4:194.9.86.0/24 ip4:194.9.87.0/24 ip4:185.51.78.140 ip4:185.51.78.141 ip4:185.51.78.142 ip4:185.51.78.143 ip4:185.150.198.82 ip4:185.150.198.83 ip4:83.151.154.155 -all
✉️ SPF
PolicyRecord (helsingor.dk)
-all (hard fail) v=spf1 include:_spf.centerasecurity.dk include:spf.ubivox.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.topdesk.net include:spam.4dim.as include:spf.mailjet.com a:mail.halbooking.dk include:spf.protection.outlook.com ip4:185.99.120.0/24 ip4:185.99.121.0/24 ip4:185.99.122.0/24 ip4:185.99.123.0/24 ip4:185.163.188.0/24 ip4:185.163.189.0/24 ip4:185.163.190.0/24 ip4:185.163.191.0/24 ip4:194.9.86.0/24 ip4:194.9.87.0/24 ip4:185.51.78.140 ip4:185.51.78.141 ip4:185.51.78.142 ip4:185.51.78.143 ip4:185.150.198.82 ip4:185.150.198.83 ip4:83.151.154.155 -all
📨 DMARC
PolicyRecord (_dmarc.helsingor.dk)
p=reject v=DMARC1;p=reject;pct=100;rua=mailto:641c25789e6bd@dmarc.centerasecurity.com;ruf=mailto:dmark_forensic_reports@helsingor.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.helsingor.dk _1gi2uclsrbwphkt6sapzadolt125865
🔗 TLSA / DANE6 records   142ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx1-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk DANE-EE · SPKI · SHA-256 56315B43B892E9AEE184919EC6A5821C…
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…
🔐 DNSSEC108ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082801
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
34ms
A
35ms
MX
29ms
AAAA
34ms
TXT
139ms
CAA
33ms
HTTPS
27ms
TLSA
142ms
SOA
0ms
MTA-STS
62ms
DNSSEC
108ms
SRV
53ms
Total
1098ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-29 01:02:02 1098ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-27 23:00:39 1084ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-27 01:02:26 806ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-03 16:23:25 850ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-27 01:26:28 918ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-24 10:32:40 1847ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-20 00:31:39 873ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-17 11:13:23 1172ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-17 11:11:24 1176ms 2 NS 1 A 3 MX 🔒 Secure View
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