helsingor.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 167.235.95.185 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.81.116.35 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:2220:1b48::2 | 600s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 0 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _14cq6msu8mzcb2bu7sixlq42l0vkb0a |
| _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 |
| Policy | Record (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 |
| Policy | Record (_dmarc.helsingor.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;pct=100;rua=mailto:641c25789e6bd@dmarc.centerasecurity.com;ruf=mailto:dmark_forensic_reports@helsingor.dk; |
| www CNAME | helsingor.dk (all on helsingor.dk) |
| www vs bare domain | Same network helsingor.dk: 167.235.95.185 2a01:4f8:2220:1b48::2 (AS24940) www.helsingor.dk: 167.235.95.185 2a01:4f8:2220:1b48::2 (AS24940) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u19908533.wl034.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u19908533.wl034.sendgrid.net | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 10/10 · policy: -all
| Service / Owner | Type | Cert 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 | 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 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100702 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 1997-01-31 |
| Expires | 2034-03-31 (2720d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 19:48:57 shown | 1133ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-06 19:41:21 | 920ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 17:42:42 | 735ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 11:59:15 | 879ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 10:52:37 | 1354ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-23 10:40:33 | 1096ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-19 11:59:30 | 1035ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-29 01:02:02 | 1098ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 23:00:39 | 1084ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 01:02:26 | 806ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 16:23:25 | 850ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-27 01:26:28 | 918ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-24 10:32:40 | 1847ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-20 00:31:39 | 873ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 11:13:23 | 1172ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 11:11:24 | 1176ms | 2 NS 1 A 3 MX | 🔒 Secure |