ulrikheyman.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.237 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by danasafe1.danaweb.org, danasafe2.danaweb.org. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.237 | 600s | linux31.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | danasafe1.danaweb.org | 193.8.38.141 | — | AS48854 team.blue Denmark A/S |
| 20 | 3600s | danasafe2.danaweb.org | 193.8.38.141 | — | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | redirect.he1.danaweb.org → 193.8.38.144 |
| www | Address record (no CNAME) |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u26926689.wl190.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u26926689.wl190.sendgrid.net | 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.
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2023110601 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 01:05:08 shown | 448ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 15:15:57 | 784ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-04 14:03:05 | 706ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 17:19:34 | 1485ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-20 05:53:58 | 1253ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 07:26:17 | 1492ms | 2 NS 1 A 2 MX | 🔒 Secure |