undervisningsmidler.dk is a .dk domain served by 2 nameservers (cloe.ns.cloudflare.com, terin.ns.cloudflare.com). It was registered on 6 July 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.197 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.undervisningsmidler.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.29.197 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.149.187 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.undervisningsmidler.dk | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:1dc5 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:95bb | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.29.197,172.67.149.187 ech=AEX+DQBBbAAgACAxx2XvV4JFUCVdgEmdGoqDip2taUNXK2q8lgpoC9YLSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1dc5,2606:4700:3033::ac43:95bb |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.google.com ~all |
| Policy | Record (undervisningsmidler.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.google.com ~all |
| Policy | Record (_dmarc.undervisningsmidler.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@zebiza.com |
| www | 104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network undervisningsmidler.dk: 104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335) www.undervisningsmidler.dk: 104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
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: 3/10 · 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 | 2406434480 |
| Primary NS (MNAME) | cloe.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 | 2023-07-06 |
| Expires | 2027-07-05 (256d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 02:53:14 | 728ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 19:06:25 | 662ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 01:50:15 | 689ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-15 05:50:28 | 2114ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 03:51:59 | 5982ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-19 20:44:43 | 8829ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-16 12:38:39 | 699ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-08 20:18:15 | 1197ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 22:46:59 | 2777ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:31:09 shown | 3541ms | 2 NS 2 A 1 MX | 🔓 Insecure |