erhvervskort.dk is a .dk domain served by 2 nameservers (dns.dsb.dk, ns.dsb.dk). It was registered on 5 June 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 137.116.232.79 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by mxfilter01.netic.dk.erhvervskort.dk, mxfilter02.netic.dk.erhvervskort.dk. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dns.dsb.dk | 193.28.147.132 | dns.dsb.dk | AS41746 DSB (SOV) |
| ns.dsb.dk | 193.28.147.131 | ns.dsb.dk | AS41746 DSB (SOV) |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 137.116.232.79 | 3600s | — | AS8075 | Microsoft Corporation | 137.116.0.0/15 | 🇮🇪 Ireland | Dublin |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 21600s | mxfilter01.netic.dk.erhvervskort.dk | — | — | — |
| 10 | 21600s | mxfilter02.netic.dk.erhvervskort.dk | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a03:dc80:0:f12d::205 | 3600s | web-php7.netic.dk | AS42697 | Netic A/S | 2a03:dc80:0:0:0:0:0:0/29 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (erhvervskort.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.erhvervskort.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:pfutvobx@ag.eu.dmarcadvisor.com; ruf=mailto:pfutvobx@fr.eu.dmarcadvisor.com; fo=1; |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve erhvervskort.dk: 137.116.232.79 2a03:dc80:0:f12d::205 (AS8075 AS42697) (all like this)www.erhvervskort.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · policy: -all
No problems found| 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 | 2023011702 |
| Primary NS (MNAME) | ns.dsb.dk |
| Responsible (RNAME) | manager@dsb.dk |
| Refresh | 1800s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 5400s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 2005-06-05 |
| Expires | 2027-06-30 (254d) |
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 |
|---|---|---|---|
| 2026-10-07 23:32:09 | 544ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-04 03:05:27 | 994ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 04:46:47 | 542ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-02 06:49:24 | 715ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 20:31:41 shown | 976ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-02 01:27:08 | 786ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 08:05:45 | 466ms | 2 NS 1 A 2 MX | 🔓 Insecure |