negle-kursus.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, dan.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.8.191 is hosted by Cloudflare, Inc. (AS13335). 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 |
|---|---|---|---|---|---|---|---|
| 104.21.8.191 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.130.154 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.8.191 |
| 🔶 Autoconfig | 104.21.8.191 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:829a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:8bf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.8.191,172.67.130.154 ech=AEX+DQBBdAAgACDmLZV6RyibplgFLS3VhBlI9D+Oz99kyhUlMCyYLrWKUgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:829a,2606:4700:3036::6815:8bf |
| www | 104.21.8.191 172.67.130.154 2606:4700:3034::ac43:829a 2606:4700:3036::6815:8bf (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network negle-kursus.dk: 104.21.8.191 172.67.130.154 2606:4700:3034::ac43:829a 2606:4700:3036::6815:8bf (AS13335) www.negle-kursus.dk: 104.21.8.191 172.67.130.154 2606:4700:3034::ac43:829a 2606:4700:3036::6815:8bf (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.negle-kursus.dk | d1jUsKNTfV6snk3IfBTuLQXidN_wZ12pEv2nNxIm8Ow |
| TXT | _acme-challenge.negle-kursus.dk | T9DMdzODW7hnEkCOKRuKnkISAav8Pc-MWJg9lQEIKUg |
| 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 | 2412757630 |
| Primary NS (MNAME) | barbara.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 09:46:05 | 449ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-29 17:23:36 | 503ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 23:52:09 | 558ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 11:37:56 | 596ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-02 03:57:20 | 2488ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-23 01:05:15 | 4933ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-22 00:54:11 shown | 4117ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-30 21:14:11 | 817ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-25 07:15:44 | 1367ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 17:44:12 | 957ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 08:27:19 | 1168ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:58:03 | 851ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-18 05:55:27 | 2611ms | 2 NS 2 A 0 MX | 🔓 Insecure |