sleepzen.dk is a .dk domain served by 2 nameservers (henry.ns.cloudflare.com, ingrid.ns.cloudflare.com). It was registered on 14 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.11 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route1.mx.cloudflare.net, route3.mx.cloudflare.net 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.17.11 | 600s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.218.92 | 600s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:da5c | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:110b | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.17.11,172.67.218.92 ech=AEX+DQBB0QAgACDehMXOXPyq/0ThnTmmcMt+XhX620rSkJ897w9mBqozTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:da5c,2606:4700:3037::6815:110b |
| TXT Record |
|---|
| google-site-verification=x3NN_6rD07nTuC1HcH32yUoKbcsA8P0XXaeRYV3XjtM |
| v=spf1 +mx +a include:_spf.mx.cloudflare.net +a +mx +ip4:85.92.73.30 +ip4:5.134.9.155 +ip4:5.134.12.217 ~all |
| Policy | Record (sleepzen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +mx +a include:_spf.mx.cloudflare.net +a +mx +ip4:85.92.73.30 +ip4:5.134.9.155 +ip4:5.134.12.217 ~all |
| Policy | Record (_dmarc.sleepzen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:77456652d63347a79e26d02790ae0b7d@dmarc-reports.cloudflare.net |
| www | 104.21.80.162 172.67.151.120 2606:4700:3033::6815:50a2 2606:4700:3036::ac43:9778 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network sleepzen.dk: 104.21.80.162 172.67.151.120 2606:4700:3033::6815:50a2 2606:4700:3036::ac43:9778 (AS13335) www.sleepzen.dk: 104.21.80.162 172.67.151.120 2606:4700:3033::6815:50a2 2606:4700:3036::ac43:9778 (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: 5/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| 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 | 2407333507 |
| Primary NS (MNAME) | henry.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 | 2023-11-14 |
| Expires | 2027-11-13 (385d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 12:54:13 | 1942ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 12:14:15 | 1138ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-21 23:32:47 | 1791ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-19 12:58:43 | 1069ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-18 07:35:18 | 2264ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-04 11:29:56 | 813ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-19 03:28:20 | 14756ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-17 16:34:46 | 6211ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-21 14:43:52 shown | 773ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 16:54:47 | 3559ms | 2 NS 2 A 3 MX | 🔓 Insecure |