usr.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 8 October 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.164.155 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by server7155.serverpark.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 5.186.164.155 | 7200s | server7155.serverpark.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | server7155.serverpark.dk | 5.186.164.155 | server7155.serverpark.dk | AS44869 FIBIA P/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 5.186.164.155 |
| 🔶 Autoconfig | 5.186.164.155 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.serverpark.dk ~all |
| Policy | Record (usr.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.serverpark.dk ~all |
| Policy | Record (_dmarc.usr.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 5.186.164.155 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| Primary NS (MNAME) | ns4.dns-123.net |
| Responsible (RNAME) | admin@dns-123.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | INTERNET 123 ApS |
| Registered | 2026-10-08 |
| Expires | 2027-10-07 (354d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 08:35:03 shown | 4878ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 16:11:17 | 142ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-01 16:09:34 | 279ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 16:02:42 | 785ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-29 19:59:07 | 677ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-29 09:06:21 | 215ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-28 08:38:42 | 929ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-27 11:48:21 | 203ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-26 11:35:41 | 220ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-25 11:20:14 | 237ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-24 11:07:04 | 619ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-23 10:52:11 | 225ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-18 11:19:35 | 253ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-13 16:01:49 | 254ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-08 09:29:55 | 2928ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-27 22:44:42 | 1266ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 06:28:51 | 2521ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-13 10:34:36 | 886ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 18:59:47 | 1292ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-19 03:17:49 | 12664ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-18 04:56:00 | 843ms | 2 NS 1 A 4 MX | 🔒 Secure |