studybox.dk is a .dk domain served by 4 nameservers (ns1-02.azure-dns.com, ns2-02.azure-dns.net, ns3-02.azure-dns.org and 1 more). It was registered on 27 April 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.58.160.83 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by studybox-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 86.58.160.83 | 3600s | — | AS47292 | Sentia Denmark A/S | 86.58.160.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| TXT Record |
|---|
| _globalsign-domain-verification=HAFKPkbmPzpUdHFi84CqbS_igS60XI2ulaMTj_WHXO |
| 468b4tx8xcwc1ybhmvvj1gndhdkyd6h1 |
| bf2zj8q2hbmzqg0d2437nfvv3trlndjw |
| dCeNZ5869TKw3fC+E5M3CY0r7H6EbgFQpzsX0ULKEW8= |
| facebook-domain-verification=wos6kypqjs2i3unj8jl1i6pnepgsb6 |
| google-site-verification=PIp-yRqockLyhUSMPaOz5fY1PMuUE7TJHzuNIwTKMJ0 |
| gwcxbgc9fy3frxm89wlr8kyxhh16mfdz |
| MS=ms70207680 |
| v=spf1 include:spf.logicalware.com include:_spf.etrack1.com ip4:86.58.160.176 ip4:86.58.160.177 ip4:86.58.159.10 ip4:86.58.159.30 ip4:86.58.159.31 include:amazonses.com -all |
| Policy | Record (studybox.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.logicalware.com include:_spf.etrack1.com ip4:86.58.160.176 ip4:86.58.160.177 ip4:86.58.159.10 ip4:86.58.159.30 ip4:86.58.159.31 include:amazonses.com -all |
| Policy | Record (_dmarc.studybox.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:62de94a87c3dc@dmarc.centerasecurity.com; |
| www CNAME | studybox.dk (all on studybox.dk) → 86.58.160.83 (AS47292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-studybox-dk._domainkey.gyldendaldk.onmicrosoft.com | 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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 1 |
| Primary NS (MNAME) | ns1-02.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | WEB SOLUTIONS A/S |
| Registered | 2017-04-27 |
| Expires | 2027-04-30 (188d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-27 03:01:40 | 1260ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 03:16:45 shown | 861ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 17:30:02 | 983ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 05:07:58 | 1729ms | 4 NS 1 A 1 MX | 🔒 Secure |