dtek.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 15 March 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.175 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dtek-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|
| ns07.sac-it.dk | 85.235.243.63 | ns07.sac-it.dk | AS3308 Norlys Telco A/S |
| ns08.sac-it.dk | 128.76.60.63 | ns08.sac-it.dk | AS3292 TDC Holding A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.40.175 | 2319s | vm1484.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| TXT Record |
|---|
| MS=ms74009946 |
| v=spf1 ip4:185.163.189.126 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:_spf.xtracon.dk include:web.shared.mysmtp.com ~all |
| Policy | Record (dtek.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:185.163.189.126 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:_spf.xtracon.dk include:web.shared.mysmtp.com ~all |
| www | 185.21.40.175 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-dtek-dk._domainkey.dtek365.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: 6/10 · 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 | 2026100801 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@dtek.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2002-03-15 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 02:07:15 | 1232ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 12:58:43 shown | 2444ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 09:45:43 | 2429ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 08:17:49 | 858ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 02:25:51 | 1241ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-20 12:38:19 | 1762ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 00:41:27 | 832ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 04:46:16 | 1581ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-02 03:25:28 | 1400ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 13:51:28 | 2330ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 20:08:52 | 6588ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-13 15:38:49 | 1755ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-06 09:23:15 | 1447ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 14:18:51 | 10063ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 22:41:24 | 3497ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-09 04:24:17 | 10044ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 15:33:58 | 659ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 22:23:54 | 1062ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 18:47:52 | 2640ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:50:22 | 502ms | 2 NS 0 A 1 MX | 🔓 Insecure |