justworks.dk is a .dk domain served by 5 nameservers (ns1.gratisdns.dk, ns2.gratisdns.dk, ns3.gratisdns.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 144.91.97.254 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by smtp.google.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.gratisdns.dk | — | — | — |
| ns2.gratisdns.dk | — | — | — |
| ns3.gratisdns.dk | — | — | — |
| ns4.gratisdns.dk | — | — | — |
| ns5.gratisdns.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 144.91.97.254 | 360s | mail.justworks.dk | AS51167 | Contabo GmbH | 144.91.64.0/18 | 🇫🇷 France | Lauterbourg |
| TXT Record |
|---|
| google-site-verification=nezotgex6bd13pi1p2tdc7jw7pwb_qxfnki0exy1dx0 |
| v=spf1 include:_spf.google.com ~all |
| v=spf1 ip4:144.91.97.254/32 ip4:95.128.26.177/28 ip4:95.128.27.0/26 a mx include:sendgrid.net include:email.freshdesk.com include:_spf.google.com include:spf1.justworks.dk ~all |
| Policy | Record (justworks.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| ~all (soft fail) | v=spf1 ip4:144.91.97.254/32 ip4:95.128.26.177/28 ip4:95.128.27.0/26 a mx include:sendgrid.net include:email.freshdesk.com include:_spf.google.com include:spf1.justworks.dk ~all |
| Policy | Record (_dmarc.justworks.dk) |
|---|---|
| p=none (monitor only) | v=dmarc1; p=none; rua=mailto:dmarc@justworks.dk; pct=100; adkim=s; aspf=s |
| p=reject | v=dmarc1; p=reject; pct=100; rua=mailto:jn@justworks.dk; ruf=mailto:jn@justworks.dk; ri=86400; fo=1; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| 0 | issue | rapidssl.com |
| www CNAME | justworks.dk (all on justworks.dk) → 144.91.97.254 (AS51167) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~1024 bit below 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: 1/10 · policy: ~all
| 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 | 2026012605 |
| Primary NS (MNAME) | ns1.gratisdns.dk |
| Responsible (RNAME) | support@justworks.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-23 13:42:38 | 1913ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 10:32:08 shown | 2886ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 17:07:40 | 805ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 21:53:35 | 1167ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 08:37:31 | 4115ms | 5 NS 1 A 1 MX | 🔓 Insecure |