dsvu-online.dk is a .dk domain served by 2 nameservers (ns.xtracon.dk, ns2.xtracon.dk). It was registered on 17 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.72.16.23 is hosted by Cibicom A/S (AS3342) in Denmark. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.xtracon.dk | 178.72.16.21 | — | AS3342 Cibicom A/S |
| ns2.xtracon.dk | 178.72.22.92 | — | AS3342 Cibicom A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 178.72.16.23 | 300s | — | AS3342 | Cibicom A/S | 178.72.16.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf include:_spf.xtracon.dk ~all |
| Policy | Record (_dmarc.dsvu-online.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | dsvu-online.dk (all on dsvu-online.dk) → 178.72.16.23 (AS3342) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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 | 2026050701 |
| Primary NS (MNAME) | ns.xtracon.dk |
| Responsible (RNAME) | svenning@xtracon.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 38400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-03-17 |
| Expires | 2027-03-31 (163d) |
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).
| Domain | Registrar |
|---|---|
| dsvu.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:59:09 shown | 1192ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-26 06:02:20 | 426ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-14 09:16:38 | 410ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-26 16:42:12 | 9474ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-02 00:38:45 | 437ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 04:50:10 | 402ms | 2 NS 1 A 0 MX | 🔓 Insecure |