cengagelearning.dk is a .dk domain served by 2 nameservers (ns1x.cengage.net, ns2x.cengage.net). It was already in the .dk zone when our tracking began on 16 June 2026. 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 |
|---|---|---|---|
| ns1x.cengage.net | 69.32.130.251 | ns1x.cengage.net | AS27365 Cengage Learning, Inc. |
| ns2x.cengage.net | 69.32.224.38 | kyindxns4.cengage.net | AS27365 Cengage Learning, Inc. |
| www | NXDOMAIN |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 20 |
| Primary NS (MNAME) | ns1x.cengage.net |
| Responsible (RNAME) | hostmaster@ohcinmason.com |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1036800s |
| Minimum (neg-cache TTL) | 900s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 08:00:15 | 1599ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-30 05:05:54 | 1675ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-23 17:37:58 | 10599ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-20 19:40:47 | 10976ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-07 03:56:34 | 26224ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 02:02:31 | 3824ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 01:31:08 shown | 2992ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:33:24 | 7888ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:14:14 | 2687ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:09:07 | 1746ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:01:13 | 1392ms | 2 NS 0 A 0 MX | 🔓 Insecure |