helsingordamp.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 13 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.12.234 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this 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 |
|---|---|---|---|---|---|---|---|
| 104.21.12.234 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.153.233 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 300s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:cea | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:99e9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.12.234,172.67.153.233 ech=AEX+DQBBagAgACCgSYh6hEVGV8queDHkwLSxAxwipiu+NFluCybHmINYEwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:cea,2606:4700:3033::ac43:99e9 |
| TXT Record |
|---|
| v=spf1 a include:spf.curanet.dk ~all |
| v=spf1 a mx ~all |
| Policy | Record (helsingordamp.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a include:spf.curanet.dk ~all |
| ~all (soft fail) | v=spf1 a mx ~all |
| www | 104.21.12.234 172.67.153.233 2606:4700:3030::6815:cea 2606:4700:3033::ac43:99e9 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network helsingordamp.dk: 104.21.12.234 172.67.153.233 2606:4700:3030::6815:cea 2606:4700:3033::ac43:99e9 (AS13335) www.helsingordamp.dk: 104.21.12.234 172.67.153.233 2606:4700:3030::6815:cea 2606:4700:3033::ac43:99e9 (AS13335) |
| Wildcard | No |
DNS lookups: 4/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2405484466 |
| Primary NS (MNAME) | barbara.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-04-13 |
| Expires | 2027-04-12 (174d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:38:59 | 964ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-25 04:45:06 | 1042ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-24 04:25:23 | 663ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 10:33:59 | 991ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-25 11:10:29 | 688ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-27 09:21:21 | 1303ms | 2 NS 2 A 2 MX | ❓ Unknown |
| 2026-06-25 08:23:30 shown | 1530ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-23 18:02:01 | 1188ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:09:16 | 1128ms | 2 NS 2 A 2 MX | 🔓 Insecure |