dennisbusk.dk is a .dk domain served by 2 nameservers (maxine.ns.cloudflare.com, rodney.ns.cloudflare.com). It was registered on 30 December 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.250 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.40.250 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.158.145 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:28fa | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:9e91 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.40.250,172.67.158.145 ech=AEX+DQBB1QAgACCuePlA88yW9Ub8GGyt580ghJYet4suS+uVFiKID2rTBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:28fa,2606:4700:3037::ac43:9e91 |
| TXT Record |
|---|
| google-site-verification=1rTZfTmOrh0V98IypZB0B2Oh1hf6z40wmBU-VrdJmDA |
| v=spf1 ip4:157.90.67.40 include:spf.azehosting.net ip4:49.12.83.57 +a +mx +ip4:185.221.37.139 +ip4:88.99.206.78 +ip4:185.121.172.165 +ip4:5.9.50.234 +ip4:78.46.234.148 +include:relay.mailchannels.net +include:mailgun.org -all |
| Policy | Record (dennisbusk.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:157.90.67.40 include:spf.azehosting.net ip4:49.12.83.57 +a +mx +ip4:185.221.37.139 +ip4:88.99.206.78 +ip4:185.121.172.165 +ip4:5.9.50.234 +ip4:78.46.234.148 +include:relay.mailchannels.net +include:mailgun.org -all |
| www | 104.21.40.250 172.67.158.145 2606:4700:3035::6815:28fa 2606:4700:3037::ac43:9e91 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network dennisbusk.dk: 104.21.40.250 172.67.158.145 2606:4700:3035::6815:28fa 2606:4700:3037::ac43:9e91 (AS13335) www.dennisbusk.dk: 104.21.40.250 172.67.158.145 2606:4700:3035::6815:28fa 2606:4700:3037::ac43:9e91 (AS13335) |
| Wildcard | No |
| 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: 10/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.dennisbusk.dk | UY8h714fOBRAvCrxLiLa8WlHnLh_8HVOx0X_isMMZB4 |
| 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 | 2416729327 |
| Primary NS (MNAME) | maxine.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 | 2007-12-30 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 00:02:58 shown | 620ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-29 23:06:50 | 1341ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-28 21:03:03 | 1714ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-26 19:05:32 | 875ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-10 08:11:27 | 1443ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-19 22:49:11 | 3031ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 02:47:27 | 52024ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 02:20:30 | 2216ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 02:08:48 | 519ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 02:00:33 | 756ms | 2 NS 2 A 5 MX | 🔓 Insecure |