studia.dk is a .dk domain served by 4 nameservers (ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.154.18.50 is hosted by IONOS SE (AS8560) in France. Mail is handled by mail.studia.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 217.154.18.50 | 3600s | ip217-154-18-50.pbiaas.com | AS8560 | IONOS SE | 217.154.16.0/21 | 🇫🇷 France | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.studia.dk | 217.154.18.50 | ip217-154-18-50.pbiaas.com | AS8560 IONOS SE |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imaps._tcp | 10 | 0 | 993 | studia.dk |
| TXT Record |
|---|
| google-site-verification=R2R81HioUyBzcq4vZoPqx726WaV66PLScTJANgVxvpg |
| v=spf1 a mx ip4:217.154.18.50 include:_spf-eu.ionos.com ~all |
| Policy | Record (studia.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ip4:217.154.18.50 include:_spf-eu.ionos.com ~all |
| Policy | Record (_dmarc.studia.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;pct=100;ri=86400;fo=1; |
| www CNAME | studia.dk (all on studia.dk) → 217.154.18.50 (AS8560) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.studia.dk | ZE6QlRtjj-FNlYOtD1os5whdyt2pGccKzMU4FwpgKVY |
| 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 | 2017060149 |
| Primary NS (MNAME) | ns1045.ui-dns.com |
| Responsible (RNAME) | hostmaster@1und1.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 16:52:31 | 574ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 13:01:18 shown | 2528ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 12:05:44 | 921ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 20:19:05 | 1036ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 20:37:33 | 836ms | 4 NS 1 A 1 MX | 🔓 Insecure |