kr4.dk is a .dk domain served by 2 nameservers (ns.brisson.dk, ns2.brisson.dk). It was registered on 23 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 40.115.1.231 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx.brisson.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|
| ns.brisson.dk | 80.209.68.5 | 80.209.68.5.static.fibianet.dk | AS44869 FIBIA P/S |
| ns2.brisson.dk | 80.209.68.3 | 80.209.68.3.static.fibianet.dk | AS44869 FIBIA P/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 40.115.1.231 | 86400s | — | AS8075 | Microsoft Corporation | 40.112.0.0/13 | 🇳🇱 The Netherlands | Amsterdam |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mx.brisson.dk | 80.209.68.5 | 80.209.68.5.static.fibianet.dk | AS44869 FIBIA P/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 40.115.1.231 |
| 🔶 Autoconfig | 40.115.1.231 |
| TXT Record |
|---|
| v=spf1 mx include:_spf.brisson.dk -all |
| Policy | Record (kr4.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:_spf.brisson.dk -all |
| Policy | Record (_dmarc.kr4.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@lists.e11.dk; ruf=mailto:dmarc-forensic@lists.e11.dk |
| www | 40.115.1.231 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 2/10 · 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 | 2026080700 |
| Primary NS (MNAME) | ns.brisson.dk |
| Responsible (RNAME) | hostmaster@brisson.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-10-23 |
| Expires | 2027-10-31 (378d) |
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 |
|---|---|
| abas.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 00:04:19 | 877ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 19:52:40 | 1039ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 18:02:15 | 2846ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 13:43:21 | 696ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 21:39:00 | 817ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-14 21:23:59 | 1820ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-05 15:38:52 | 757ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 18:04:53 | 554ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 23:49:25 shown | 3022ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-26 16:31:57 | 9489ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-25 16:05:01 | 868ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 06:08:24 | 573ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-29 14:57:58 | 806ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:25:30 | 1631ms | 2 NS 1 A 1 MX | 🔓 Insecure |