engelsk-kurser.dk is a .dk domain served by 3 nameservers (ns1.itwebhotel.dk, ns2.itwebhotel.dk, ns3.itwebhotel.dk). It was registered on 22 August 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.243.153.199 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.engelsk-kurser.dk. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 136.243.153.199 | 3600s | ns3.itwebhotel.dk | AS24940 | Hetzner Online GmbH | 136.243.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.engelsk-kurser.dk | 136.243.153.199 | ns3.itwebhotel.dk | AS24940 Hetzner Online GmbH |
| TXT Record |
|---|
| v=spf1 a mx ip4:136.243.153.199 ~all |
| Policy | Record (engelsk-kurser.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ip4:136.243.153.199 ~all |
| www | 136.243.153.199 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · 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 | 2025112700 |
| Primary NS (MNAME) | ns1.itwebhotel.dk |
| Responsible (RNAME) | hostmaster@engelsk-kurser.dk |
| Refresh | 3600s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | ITwebhotel ApS |
| Registered | 2003-08-22 |
| Expires | 2027-11-30 (401d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 21:42:45 | 528ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-19 19:31:51 | 1006ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 15:20:52 | 767ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-14 14:35:31 | 781ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-10 09:41:44 | 619ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 01:34:25 | 2449ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-08 07:55:56 | 1176ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 15:33:05 | 757ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 15:20:24 | 743ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 07:20:25 shown | 963ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 20:12:41 | 1637ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 07:35:45 | 570ms | 3 NS 1 A 1 MX | 🔓 Insecure |