masterstudies.dk is a .dk domain served by 2 nameservers (dana.ns.cloudflare.com, jay.ns.cloudflare.com). It was registered on 22 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.33.2 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.33.2 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.139.49 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:2102 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:8b31 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.33.2,172.67.139.49 ech=AEX+DQBBfQAgACAOZVOHP0IJvy5BON+KMs1NAvCaYQGCqnN3D+2Vj4hhKwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:2102,2606:4700:3036::ac43:8b31 |
| www | 104.21.33.2 172.67.139.49 2606:4700:3032::6815:2102 2606:4700:3036::ac43:8b31 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network masterstudies.dk: 104.21.33.2 172.67.139.49 2606:4700:3032::6815:2102 2606:4700:3036::ac43:8b31 (AS13335) www.masterstudies.dk: 104.21.33.2 172.67.139.49 2606:4700:3032::6815:2102 2606:4700:3036::ac43:8b31 (AS13335) |
| Wildcard | No |
| 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 | 2415636322 |
| Primary NS (MNAME) | dana.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2009-01-22 |
| Expires | 2027-01-31 (97d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-26 03:41:45 shown | 464ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-24 20:02:40 | 450ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-27 00:53:50 | 485ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 14:46:57 | 560ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-21 06:52:48 | 9405ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-18 22:34:00 | 1433ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-26 22:37:10 | 2779ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-17 23:24:53 | 2208ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 00:26:50 | 813ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-18 05:03:46 | 740ms | 2 NS 2 A 0 MX | 🔓 Insecure |