jsa.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.71 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 195.242.131.71 | — | web5.e-studio.dk | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | mail.jsa.dk |
| TXT Record |
|---|
| _s14i1i6n5wny3ytf7st0mwveafg8wat |
| MS=A4BDDE5A6A833E9E64D0DB40EBCC9AF419A8EE00 |
| v=spf1 mx a include:_spf.centerasecurity.dk include:_spf.e-studio.dk ~all |
| Policy | Record (jsa.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a include:_spf.centerasecurity.dk include:_spf.e-studio.dk ~all |
| Policy | Record (_dmarc.jsa.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | jsa.dk (all on jsa.dk) |
| 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: 4/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2022072038 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 16:41:49 | 556ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 10:59:46 | 653ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-02 03:01:23 | 966ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 00:01:41 | 1271ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 10:49:23 | 1107ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:11:19 | 1420ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 18:44:01 | 1015ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 02:54:21 shown | 845ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 02:53:38 | 938ms | 3 NS 1 A 2 MX | 🔒 Secure |