sletdet.dk is a .dk domain served by 2 nameservers (betty.ns.cloudflare.com, simon.ns.cloudflare.com). It was registered on 6 April 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.22.235 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.dandomain.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.22.235 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.207.150 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx01.dandomain.dk | 212.237.249.50 | mx1.dandomain.dk | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.207.150 |
| 🔶 Autoconfig | 104.21.22.235 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:cf96 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:16eb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.22.235,172.67.207.150 ech=AEX+DQBBSQAgACBNtS4tkEqroHZdRJpF3WtXhqh+ta59ZEOMaUO7eu66LQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:cf96,2606:4700:3035::6815:16eb |
| TXT Record |
|---|
| bw=aMBoJdzJcUHfzwP8RvRLk0YFQ74WgnvCOYoU0NhqK1zy |
| have-i-been-pwned-verification=dweb_nqg3hn74ue972dcja7in9vp0 |
| v=spf1 -all |
| Policy | Record (sletdet.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.sletdet.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:dmarcreports-rua@redbarnet.dk; ruf=mailto:dmarcreports-ruf@redbarnet.dk |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 20250324162316Z |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:tls-report@redbarnet.dk |
| www | 104.21.22.235 172.67.207.150 2606:4700:3033::ac43:cf96 2606:4700:3035::6815:16eb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| 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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.sletdet.dk | 2VTq4BslZeg0hwxaUWL1sNRJ3gPbM7f3Q4-5RJ0Z5oM |
| TXT | _acme-challenge.sletdet.dk | CiR4UFK516pi3Tuerb_Uicw-ExZBW-hMZUkl7jtDKPw |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417728242 |
| Primary NS (MNAME) | betty.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2016-04-06 |
| Expires | 2027-07-31 (285d) |
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 |
|---|---|---|---|
| 2026-10-18 15:26:59 shown | 3593ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-11 02:07:57 | 1898ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-29 15:26:50 | 1540ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-24 01:41:25 | 715ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 14:31:21 | 866ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-18 10:43:52 | 1768ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 05:53:31 | 638ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-28 01:49:00 | 729ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-23 17:39:39 | 1171ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-19 07:05:18 | 3717ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-18 06:50:23 | 4682ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-01 08:17:51 | 1002ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-27 00:48:10 | 1018ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-07 02:58:33 | 964ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-02 10:37:50 | 1099ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-27 02:52:24 | 3522ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-25 08:10:46 | 5306ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-24 08:44:24 | 916ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 00:32:15 | 823ms | 2 NS 2 A 1 MX | 🔒 Secure |