arp-network.dk is a .dk domain served by 2 nameservers (damien.ns.cloudflare.com, pola.ns.cloudflare.com). It was registered on 4 May 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 144.76.168.29 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by arpnetwork-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 144.76.168.29 | 3600s | cp15.nordicway.dk | AS24940 | Hetzner Online GmbH | 144.76.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms79439235 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (arp-network.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 144.76.168.29 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.arp-network.dk | AXo7rxznwc7EjkjevRrWl71gakafJ4E6b2348lWENM8 |
| TXT | _acme-challenge.arp-network.dk | TDVpAjgfMmIRh4ZxgC6DjfuBlEilxVIAGsvWN45G1xk |
| 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 | 2417595210 |
| Primary NS (MNAME) | damien.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | nordicway ApS |
| Registered | 2020-05-04 |
| Expires | 2028-05-31 (592d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 01:07:49 shown | 1074ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-13 21:18:28 | 1461ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 16:20:32 | 1846ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 20:05:27 | 1573ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 14:26:22 | 7994ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-19 19:34:13 | 9174ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-14 17:08:22 | 2973ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-13 16:40:23 | 9460ms | 2 NS 1 A 1 MX | ❓ Unknown |
| 2026-06-26 00:30:20 | 1370ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 15:34:03 | 1318ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:41:18 | 756ms | 2 NS 1 A 1 MX | 🔓 Insecure |