mdteacher.dk is a .dk domain served by 2 nameservers (elmo.ns.cloudflare.com, zara.ns.cloudflare.com). It was registered on 10 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.50.195 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 |
|---|---|---|---|---|---|---|---|
| 104.21.50.195 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.210.8 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 91.221.196.226 |
| 🔶 Autoconfig | 91.221.196.226 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:d208 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:32c3 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.50.195,172.67.210.8 ech=AEX+DQBBGQAgACDiiHPl0laZEXS39Cmk69e8HjShaNqQ1Yc7xEPeVJO/cwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d208,2606:4700:3037::6815:32c3 |
| TXT Record |
|---|
| ca3-5625a7c10a224b81806c634f1eeb5b40 |
| google-site-verification=DJQoO1gRmvq_nJBq8zarbArAx4pnYEPISTNqVtZi9nY |
| google-site-verification=L5H5LQKithSajbD_ehkCUI_TTNy4bGpO0zy_vTHoeU4 |
| google-site-verification=tyGoc9qpv1uebvYCVKH98CxnbtJpyPTDrpjF3yIUhJ4 |
| klaviyo-site-verification=XFMw8g |
| Policy | Record (_dmarc.mdteacher.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; fo=1; rua=mailto:info@mdteacher.dk |
| www | 104.21.50.195 172.67.210.8 2606:4700:3033::ac43:d208 2606:4700:3037::6815:32c3 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network mdteacher.dk: 104.21.50.195 172.67.210.8 2606:4700:3033::ac43:d208 2606:4700:3037::6815:32c3 (AS13335) www.mdteacher.dk: 104.21.50.195 172.67.210.8 2606:4700:3033::ac43:d208 2606:4700:3037::6815:32c3 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.mdteacher.dk | mdteacher.dk.kinstavalidation.app |
| 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 | 2418169861 |
| Primary NS (MNAME) | elmo.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 | 2019-04-10 |
| Expires | 2035-04-30 (3111d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 19:30:29 shown | 695ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-10-20 10:48:12 | 3438ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-30 11:11:49 | 896ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-06 23:05:12 | 954ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-27 02:25:20 | 984ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-22 11:53:16 | 9707ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-21 11:22:23 | 10425ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-07-04 22:34:32 | 2226ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-19 18:37:49 | 1048ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 23:09:46 | 16414ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 23:02:00 | 20159ms | 2 NS 2 A 5 MX | 🔓 Insecure |