cubster.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 7 May 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.2 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by cubster.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 195.242.131.2 | 14400s | web.e-studio.dk | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | cubster.dk | 195.242.131.2 2001:67c:564:fffc::1001 |
web.e-studio.dk — |
AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.242.131.2 |
| 🔶 Autoconfig | 195.242.131.2 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:67c:564:fffc::1001 | 14400s | — | AS62121 | Christian Ebsen ApS | 2001:67c:564:0:0:0:0:0/48 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:195.242.131.2 include:_spf.e-studio.dk -all |
| Policy | Record (cubster.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:195.242.131.2 include:_spf.e-studio.dk -all |
| Policy | Record (_dmarc.cubster.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | cubster.dk (all on cubster.dk) |
| www vs bare domain | Same network cubster.dk: 195.242.131.2 2001:67c:564:fffc::1001 (AS62121) www.cubster.dk: 195.242.131.2 2001:67c:564:fffc::1001 (AS62121) |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.cubster.dk | YPWoZ8Ek6KJGA66d8h74LGpyt-5VFhK6WDIz7Pu05zI |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026081001 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2016-05-07 |
| Expires | 2028-05-31 (592d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 05:17:33 | 556ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 23:51:17 | 361ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 21:28:26 shown | 383ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 20:21:11 | 511ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-11 05:28:38 | 3209ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 11:10:10 | 1264ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 07:59:10 | 1163ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:41:01 | 2574ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:10:46 | 722ms | 3 NS 1 A 1 MX | 🔓 Insecure |