jwt.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 4 September 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by jwt-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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| TXT Record |
|---|
| MS=ms81397517 |
| v=spf1 include:spf.protection.outlook.com include:spf.host4u.dk -all |
| Policy | Record (jwt.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.host4u.dk -all |
| Policy | Record (_dmarc.jwt.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=reject; pct=100; adkim=s; aspf=s; rua=mailto:dmarc_agg@vali.email; fo=1; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves jwt.dk: no address www.jwt.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-jwt-dk._domainkey.hannaestoemrerforretning.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: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025052200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2023-09-04 |
| Expires | 2027-09-03 (318d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 17:03:47 | 886ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-08 09:09:48 | 908ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-02 18:26:20 | 834ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 05:24:33 | 719ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-29 15:37:31 shown | 1460ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 23:46:03 | 1144ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-25 07:29:39 | 25172ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-03 00:19:40 | 1052ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-27 15:30:29 | 800ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 16:05:15 | 821ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 04:59:43 | 1190ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 18:34:02 | 1266ms | 3 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-18 00:21:44 | 2653ms | 3 NS 0 A 1 MX | 🔒 Secure |