just-r.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 5 May 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.just-r.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 193.200.90.180 | — | web8.e-studio.dk | AS62121 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.just-r.dk | 193.200.90.180 | web8.e-studio.dk | AS62121 Christian Ebsen ApS |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.e-studio.dk ~all |
| Policy | Record (just-r.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.e-studio.dk ~all |
| Policy | Record (_dmarc.just-r.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine; rua=mailto:spamrapport@just-r.dk; ruf=mailto:spamrapport@just-r.dk |
| www CNAME | just-r.dk (all on just-r.dk) |
| www vs bare domain | Same network |
| 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: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026052301 |
| 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 | 1998-05-05 |
| Expires | 2028-06-30 (616d) |
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 |
|---|---|
| j-r.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 15:13:16 | 478ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 19:49:39 | 9427ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 18:10:51 | 586ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 14:17:53 | 481ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-12 14:58:12 | 538ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 14:19:54 | 872ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-24 06:54:31 | 927ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 13:21:49 | 1802ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 21:03:38 | 654ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 11:45:24 | 907ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 15:47:17 shown | 578ms | 3 NS 1 A 1 MX | 🔓 Insecure |