usetech.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, kip.ns.cloudflare.com). It was registered on 24 June 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.148 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.ad-group.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.28.148 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.146.190 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.ad-group.dk | 212.98.84.140 | mail.ad-group.dk | AS42525 GlobalConnect A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.28.148 |
| 🔶 Autoconfig | 172.67.146.190 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3036::6815:1c94 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:92be | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.28.148,172.67.146.190 ech=AEX+DQBB6gAgACBQKnPumbOKM9pFa5/eJ9sOn84CyXxOWSedcwqU2XveMgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:1c94,2606:4700:3036::ac43:92be |
| www | 104.21.28.148 172.67.146.190 2606:4700:3036::6815:1c94 2606:4700:3036::ac43:92be (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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.
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.usetech.dk | 94ungpJo3LkzkMFGpcBn_3MosmUz28LmgFX9DvllEyI |
| TXT | _acme-challenge.usetech.dk | TgXZcYNKHflBHtT6NyBQjbzNFCmyg_PWeSo0O03bZts |
| 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 | 2417603191 |
| Primary NS (MNAME) | barbara.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2024-06-24 |
| Expires | 2027-06-23 (244d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 01:21:03 shown | 564ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-19 23:06:47 | 2337ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-16 20:32:00 | 2622ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-08 06:14:16 | 574ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-02 09:31:52 | 483ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 09:24:26 | 679ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-14 08:18:14 | 544ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 07:16:03 | 1727ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-18 06:37:12 | 1361ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-16 22:23:00 | 2333ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-15 13:42:24 | 1059ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-05 23:44:22 | 1164ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 23:22:24 | 2719ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:50:36 | 1371ms | 2 NS 2 A 1 MX | 🔓 Insecure |