kasper-willumsen.dk is a .dk domain served by 2 nameservers (jacob.ns.cloudflare.com, sonia.ns.cloudflare.com). It was registered on 18 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.33.20 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.zoho.eu, mx3.zoho.eu and 1 more. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.33.20 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.157.154 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:2114 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:9d9a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.33.20,172.67.157.154 ech=AEX+DQBBiAAgACCz34RwZd4dKq4UUUPuLgQKg4RFbNJJj6vM5shJovMuFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:2114,2606:4700:3037::ac43:9d9a |
| TXT Record |
|---|
| v=spf1 include:dc-8e814c8572._spfm.kasper-willumsen.dk ~all |
| Policy | Record (kasper-willumsen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:dc-8e814c8572._spfm.kasper-willumsen.dk ~all |
| Policy | Record (_dmarc.kasper-willumsen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:cfef5fbdc1554bbd9813974d032538c1@dmarc-reports.cloudflare.net |
| www | 104.21.33.20 172.67.157.154 2606:4700:3035::6815:2114 2606:4700:3037::ac43:9d9a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network kasper-willumsen.dk: 104.21.33.20 172.67.157.154 2606:4700:3035::6815:2114 2606:4700:3037::ac43:9d9a (AS13335) www.kasper-willumsen.dk: 104.21.33.20 172.67.157.154 2606:4700:3035::6815:2114 2606:4700:3037::ac43:9d9a (AS13335) |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
| 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 | 2418080945 |
| Primary NS (MNAME) | jacob.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 | 2023-05-18 |
| Expires | 2029-05-17 (935d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 01:11:51 shown | 3426ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-21 15:31:19 | 1001ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 02:35:37 | 2149ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-29 02:20:40 | 1491ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-26 13:37:09 | 2639ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-24 01:07:59 | 17182ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-03 11:56:27 | 2239ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 16:11:03 | 1176ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 09:29:11 | 881ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-06-23 11:28:07 | 1379ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 03:36:45 | 1104ms | 2 NS 2 A 3 MX | 🔓 Insecure |