fdhi.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.46.107 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by fdhi-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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns4.dns-123.net | — | — | — |
| ns5.dns-123.net | — | — | — |
| ns6.dns-123.net | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.103.46.107 | — | server6107.serverpark.dk | AS44869 | FIBIA P/S | 5.103.0.0/16 | 🇩🇰 Denmark | Holbæk |
| TXT Record |
|---|
| v=spf1 a mx include:spf.ubivox.com include:spf.protection.outlook.com include:spf-westeu.emailsignatures365.com ~all |
| Policy | Record (fdhi.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.ubivox.com include:spf.protection.outlook.com include:spf-westeu.emailsignatures365.com ~all |
| Policy | Record (_dmarc.fdhi.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:rua@dmarc.i123.dk; ruf=mailto:ruf@dmarc.i123.dk; sp=none; aspf=r; adkim=r; ri=86400; |
| www | 5.103.46.107 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u1018819.wl070.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u1018819.wl070.sendgrid.net | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-fdhi-dk._domainkey.fdhi.onmicrosoft.com | RSA · ~1024 bit below 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: 5/10 · 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 | 2016080446 |
| Primary NS (MNAME) | ns4.dns-123.net |
| Responsible (RNAME) | admin@dns-123.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 18:50:40 | 1283ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 01:37:44 | 9866ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 07:13:35 | 1195ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 18:51:15 | 2454ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 08:38:18 | 1802ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 03:07:37 | 910ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:00:12 | 1273ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 09:40:35 shown | 1793ms | 3 NS 1 A 1 MX | 🔒 Secure |