klassetrivsel.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.28 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.28 | 3600s | vm1350.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 84.22.117.133 |
| 🔶 Autoconfig | 84.22.117.133 |
| TXT Record |
|---|
| v=spf1 ip4:167.89.100.243 include:_spf.google.com ip4:149.72.209.99 ~all |
| Policy | Record (klassetrivsel.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:167.89.100.243 include:_spf.google.com ip4:149.72.209.99 ~all |
| www CNAME | klassetrivsel.dk (all on klassetrivsel.dk) → 185.21.41.28 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u7577757.wl008.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u7577757.wl008.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.
DNS lookups: 1/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101306 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 07:46:41 shown | 812ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-29 17:05:06 | 925ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-23 08:19:46 | 2749ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-22 00:52:57 | 1301ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-04 23:03:20 | 5377ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-23 22:47:36 | 2506ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-20 06:29:33 | 11545ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-17 20:46:05 | 777ms | 2 NS 1 A 5 MX | 🔒 Secure |