sebmastercard.dk is a .dk domain served by 4 nameservers (ns1.seb.se, ns2.sebgroup.com, pdns1.cscdns.net and 1 more). It was registered on 4 July 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (sebmastercard.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.sebmastercard.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc.rua@seb.se; pct=100; adkim=r; aspf=r; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:csirt@seb.se |
| 0 | iodef | mailto:sebitkeymanagement@seb.se |
| 0 | issue | amazonaws.com |
| 0 | issue | digicert.com |
| 0 | issue | entrust.net |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog |
| 0 | issue | sectigo.com |
| www CNAME | www.seb.net (all on seb.net) → 129.178.72.20 (AS44320) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025120100 |
| Primary NS (MNAME) | ns1.seb.se |
| Responsible (RNAME) | hostmaster@seb.se |
| Refresh | 25200s |
| Retry | 3600s |
| Expire | 2592000s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2006-07-04 |
| Expires | 2027-07-31 (284d) |
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 |
|---|---|
| 1856fo.dk | CSC Digital Brand Service, Inc |
| sebx.dk | CSC Digital Brand Service, Inc |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:55:19 | 799ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-24 16:38:23 | 9471ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-26 23:43:32 | 730ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-28 17:33:45 | 1615ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-21 13:27:09 shown | 938ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-20 19:24:34 | 1171ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:40:46 | 3727ms | 4 NS 0 A 0 MX | 🔓 Insecure |