sprog-kursus.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 15 October 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.118 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 94.231.103.118 | 3266s | linux102.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| TXT Record |
|---|
| v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.curanet.dk -all |
| Policy | Record (sprog-kursus.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.curanet.dk -all |
| www | 94.231.103.118 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| 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 | 2026082701 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@sprog-kursus.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | SAC-IT A/S |
| Registered | 2012-10-15 |
| Expires | 2026-10-31 (7d) |
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).
| Domain | Registrar |
|---|---|
| lengua-latina.dk | SAC-IT A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 13:20:12 | 1597ms | 2 NS 1 A 3 MX | ❓ Unknown |
| 2026-10-22 09:10:13 | 1249ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 17:53:34 | 1446ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 17:31:26 | 1030ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 04:20:42 | 1048ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 23:15:11 | 931ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 21:34:28 | 847ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-18 06:20:26 | 1103ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-11 04:07:22 | 924ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-03 22:31:39 | 1014ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 17:10:33 shown | 705ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 02:38:42 | 9123ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-14 13:50:27 | 1107ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-06 12:06:27 | 1506ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-01 05:39:04 | 1282ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 23:02:14 | 3099ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-16 02:49:50 | 2055ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-09 02:01:58 | 17665ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 12:51:56 | 2707ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-28 14:09:51 | 674ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-20 14:15:58 | 664ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 11:43:14 | 1280ms | 2 NS 1 A 3 MX | 🔓 Insecure |