teststudiet.dk is a .dk domain served by 2 nameservers (isla.ns.cloudflare.com, scott.ns.cloudflare.com). It was registered on 3 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.47.215 is hosted by Cloudflare, Inc. (AS13335). 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 |
|---|---|---|---|---|---|---|---|
| 104.21.47.215 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.172.206 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.172.206 |
| 🔶 Autoconfig | 172.67.172.206 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:acce | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:2fd7 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.47.215,172.67.172.206 ech=AEX+DQBB0wAgACCCA1BqnGcJsph8UtaX/ctSvaNFbTx1VNpYShoGU/kTBQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:acce,2606:4700:3037::6815:2fd7 |
| TXT Record |
|---|
| google-site-verification=Bh-Y76oDWeqeFuJQRDUnFpLWSdUMrIMjFMjUr4R6lR8 |
| v=spf1 ip4:178.20.216.128 ip4:178.20.216.7 ip4:178.20.216.31 ip4:178.20.216.5 include:spf.chosting.dk ~all |
| Policy | Record (teststudiet.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:178.20.216.128 ip4:178.20.216.7 ip4:178.20.216.31 ip4:178.20.216.5 include:spf.chosting.dk ~all |
| Policy | Record (_dmarc.teststudiet.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; fo=1; rua=mailto:kontakt@teststudiet.dk |
| www | 104.21.47.215 172.67.172.206 2606:4700:3033::ac43:acce 2606:4700:3037::6815:2fd7 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network teststudiet.dk: 104.21.47.215 172.67.172.206 2606:4700:3033::ac43:acce 2606:4700:3037::6815:2fd7 (AS13335) www.teststudiet.dk: 104.21.47.215 172.67.172.206 2606:4700:3033::ac43:acce 2606:4700:3037::6815:2fd7 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| 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: 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 | 2409299902 |
| Primary NS (MNAME) | isla.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | FIONIA IT ApS |
| Registered | 2020-10-03 |
| Expires | 2026-10-31 (13d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 13:20:06 | 440ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-04 07:53:49 | 477ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 22:21:19 | 650ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-15 06:14:06 | 1927ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 07:16:36 | 9585ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-10 12:55:52 | 1007ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-22 03:23:49 | 882ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-12 04:30:18 shown | 909ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-27 01:11:14 | 817ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 12:16:43 | 1145ms | 2 NS 2 A 0 MX | 🔓 Insecure |