kidudu.dk is a .dk domain served by 2 nameservers (harleigh.ns.cloudflare.com, renan.ns.cloudflare.com). It was registered on 21 July 2026 (WHOIS) and first appeared in the .dk zone on 22 July 2026. Its website address 104.21.7.224 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.kidudu.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.7.224 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.156.127 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.kidudu.dk | 168.119.245.161 2a01:4f8:c013:aa1a::1 |
mail.kidzly.es — |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 20 | 300s | mail.kidudu.dk | 168.119.245.161 2a01:4f8:c013:aa1a::1 |
mail.kidzly.es — |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:9c7f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:7e0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.7.224,172.67.156.127 ech=AEX+DQBB9wAgACCqTtsyqssKocINIKXG3MUBEQM/IlXxMKtQ3T7NV6B4MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:9c7f,2606:4700:3034::6815:7e0 |
| TXT Record |
|---|
| klaviyo-site-verification=SSYqau |
| v=spf1 include:mxsspf.sendpulse.com ip6:2a01:4f8:c013:aa1a::1 ip4:168.119.245.161 include:spf.mailjet.com a mx -all |
| Policy | Record (kidudu.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:mxsspf.sendpulse.com ip6:2a01:4f8:c013:aa1a::1 ip4:168.119.245.161 include:spf.mailjet.com a mx -all |
| Policy | Record (_dmarc.kidudu.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; sp=reject; rua=mailto:dmarc@kidudu.dk; fo=1 |
| www | 104.21.7.224 172.67.156.127 2606:4700:3033::ac43:9c7f 2606:4700:3034::6815:7e0 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | RSA · ~2048 bit |
| s1 | s1.domainkey.u112074313.wl064.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u112074313.wl064.sendgrid.net | 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: 4/10 · policy: -all
No problems found| 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 | 2417256122 |
| Primary NS (MNAME) | harleigh.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2026-07-21 |
| Expires | 2027-07-20 (275d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 04:51:53 shown | 530ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-12 03:53:55 | 1708ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-11 03:21:18 | 2467ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-10 01:55:44 | 592ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-08 16:37:17 | 2654ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-07 16:30:25 | 2700ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-06 14:54:29 | 3663ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-05 14:06:05 | 2470ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-04 13:51:41 | 1589ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 13:49:19 | 1261ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-02 13:44:51 | 698ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 13:42:09 | 586ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-30 13:34:49 | 1992ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-29 13:28:43 | 728ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-28 13:20:20 | 975ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-27 13:07:17 | 1179ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-26 12:53:18 | 996ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-25 12:35:43 | 1341ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-24 12:23:54 | 1728ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-23 12:07:37 | 946ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-14 14:56:16 | 2624ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-07 14:24:50 | 1800ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-31 00:14:39 | 1837ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-29 17:05:54 | 1227ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 01:54:25 | 744ms | 2 NS 2 A 2 MX | 🔓 Insecure |