cowiholding.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 4 June 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.92.65.215 is hosted by Datacenter Luxembourg S.A. (AS24611) in Luxembourg. Mail is handled by cowiholding-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.eurodns.com | — | — | — |
| ns2.eurodns.com | — | — | — |
| ns3.eurodns.com | — | — | — |
| ns4.eurodns.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 80.92.65.215 | — | 80-92-65-215.ip.dclux.com | AS24611 | Datacenter Luxembourg S.A. | 80.92.64.0/19 | 🇱🇺 Luxembourg | Luxembourg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 50 | — | cowiholding-dk.mail.protection.outlook.com | — | — | — |
| TXT Record |
|---|
| C0O0W87791 |
| MS=ms14999581 |
| v=spf1 ip4:195.93.192.193 include:spf.protection.outlook.com -all |
| Policy | Record (cowiholding.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:195.93.192.193 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.cowiholding.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;fo=1;rua=mailto:dmarc@cowiholding.dk |
| www | 80.92.65.215 (AS24611) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-cowiholding-dk._domainkey.cowi.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-cowiholding-dk._domainkey.cowi.onmicrosoft.com | RSA · ~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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032518 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2018-06-04 |
| Expires | 2027-06-30 (246d) |
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 |
|---|---|---|---|
| 2026-10-22 03:40:32 | 1830ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 23:49:55 | 2451ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 23:42:47 | 997ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 23:35:11 | 1371ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 04:13:40 | 1475ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 21:33:26 | 2024ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 01:04:56 | 1003ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 00:16:51 | 733ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 18:42:57 | 3534ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 15:59:19 | 1429ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-22 18:03:08 | 10467ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 04:52:55 | 9100ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 23:26:14 | 1112ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 19:56:16 | 1910ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 23:30:57 | 817ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:36:00 shown | 4475ms | 4 NS 1 A 1 MX | 🔒 Secure |