lærprogrammering.dk is a .dk domain served by 2 nameservers (christian.ns.cloudflare.com, paislee.ns.cloudflare.com). It was registered on 2 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.80.201 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com and 2 more. The zone is not DNSSEC-signed, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.80.201 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.153.142 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.pub.mailpod12-cph3.one.com | 104.37.34.246 | mx1.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx2.pub.mailpod12-cph3.one.com | 104.37.34.247 | mx2.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx3.pub.mailpod12-cph3.one.com | 104.37.34.248 | mx3.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx4.pub.mailpod12-cph3.one.com | 104.37.34.249 | mx4.pub.mailpod12-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:50c9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:998e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.80.201,172.67.153.142 ech=AEX+DQBBtAAgACBMVhU6Pprc/Q2nBif/2QW9U82vLhRMfXSxE9CtcXcrPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:50c9,2606:4700:3035::ac43:998e |
| TXT Record |
|---|
| google-site-verification=UsTq_89YYFV2uSKRuPCb_oLhhPGpTLlt80_PPJi-4ks |
| www | 104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network lærprogrammering.dk: 104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335) www.lærprogrammering.dk: 104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335) |
| Wildcard | No |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com | DANE-EE · SPKI · SHA-256 | 2CDDC5D748A3C02AC19FF7BC33AA01A5… |
| 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 | 2414987645 |
| Primary NS (MNAME) | christian.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2024-08-02 |
| Expires | 2027-08-01 (278d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 16:42:22 | 556ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-05 16:10:46 | 518ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-24 14:40:05 shown | 807ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-23 15:54:11 | 826ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-27 10:07:14 | 2219ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-26 16:38:06 | 797ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-25 04:35:45 | 850ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-07 20:00:12 | 1265ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-19 20:35:45 | 9296ms | 2 NS 2 A 4 MX | ❓ Unknown |
| 2026-06-20 17:14:28 | 1296ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-06-17 23:02:23 | 291ms | 0 NS 0 A 0 MX | 🔒 Secure |