j-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 27 February 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.j-r.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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.j-r.dk | 193.200.90.180 | web8.e-studio.dk | AS62121 Christian Ebsen ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 193.200.90.180 |
| 🔶 Autoconfig | 193.200.90.180 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.e-studio.dk ~all |
| Policy | Record (j-r.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.e-studio.dk ~all |
| www CNAME | j-r.dk (all on j-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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.j-r.dk | 9IX4VER4-z-LKij5sbaHUtRMX7L361jV4TxaajMDayc |
| 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 | 2023-02-27 |
| Expires | 2029-02-26 (861d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 02:27:53 | 609ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 22:51:48 | 569ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 14:31:31 | 860ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 13:04:53 | 9472ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-24 09:12:59 | 9608ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 13:23:38 | 16742ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 22:27:07 shown | 3696ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-25 00:51:55 | 2050ms | 3 NS 1 A 1 MX | ❓ Unknown |
| 2026-06-24 17:15:07 | 633ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 05:25:56 | 971ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 10:40:18 | 2707ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 10:04:05 | 1168ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 09:06:59 | 634ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 00:00:57 | 1598ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:28:49 | 607ms | 3 NS 1 A 1 MX | 🔓 Insecure |