worksystem.dk is a .dk domain served by 2 nameservers (ns1.dnshost.net, ns2.dnshost.net). It was registered on 15 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.51.104.32 is hosted by Amazon.com, Inc. (AS16509) in Sweden. Mail is handled by worksystem-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 13.51.104.32 | 3600s | worksystem.se | AS16509 | Amazon.com, Inc. | 13.32.0.0/11 | 🇸🇪 Sweden | Stockholm |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.208.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| facebook-domain-verification=s3va9muh6scpbm1koidsr13lfmcoao |
| MS=ms61268420 |
| v=spf1 include:amazonses.com include:spf.protection.outlook.com ip4:13.51.104.32 -all |
| Policy | Record (worksystem.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:amazonses.com include:spf.protection.outlook.com ip4:13.51.104.32 -all |
| Policy | Record (_dmarc.worksystem.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:koneo@worksystem.se; ruf=mailto:koneo@worksystem.se |
| www | 13.51.104.32 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-worksystem-dk._domainkey.worksystemse.onmicrosoft.com | 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: 2/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 1749655567 |
| Primary NS (MNAME) | ns1.dnshost.net |
| Responsible (RNAME) | zonemaster\@dnshost@net |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Name SRS AB |
| Registered | 2019-12-15 |
| Expires | 2026-12-31 (64d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 12:46:42 shown | 837ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-30 18:22:03 | 25226ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 16:37:25 | 2982ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:35:58 | 828ms | 2 NS 1 A 1 MX | 🔓 Insecure |