sda.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 23 April 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.7.25.201 is hosted by Jn Data A/s (AS204607) in Denmark. Mail is handled by sda-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 195.7.25.201 | 3600s | — | AS204607 | Jn Data A/s | 195.7.24.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| MS=ms26383634 |
| v=spf1 include:_senderidstd.bec.dk -all |
| Policy | Record (sda.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_senderidstd.bec.dk -all |
| Policy | Record (_dmarc.sda.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; adkim=s; aspf=s; |
| www CNAME | sda.dk (all on sda.dk) → 195.7.25.201 (AS204607) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2023120662 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 1996-04-23 |
| Expires | 2027-06-30 (255d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 03:46:02 | 961ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 08:42:48 | 726ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 08:30:26 | 1073ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 09:23:28 | 1468ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 00:55:16 | 9556ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 12:42:22 | 2204ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 16:32:50 | 1212ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 19:32:20 | 703ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 08:18:19 | 1701ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-01 00:35:22 | 1541ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 19:15:57 | 1220ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 17:43:55 | 2308ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 19:56:43 | 1476ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 21:42:34 | 3781ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 02:58:27 | 1237ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 21:57:09 | 812ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 04:17:30 shown | 1595ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 06:45:46 | 2016ms | 4 NS 1 A 1 MX | 🔒 Secure |