markholt-partners.dk is a .dk domain served by 2 nameservers (isla.ns.cloudflare.com, lloyd.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.139 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by markholtpartners-dk02b.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.65.139 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.190.154 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | 172.67.190.154 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:418b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:be9a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.65.139,172.67.190.154 ech=AEX+DQBBIgAgACC/Rw66RcIlQ8mL65L/llbeOlyupDY1c7fpboEc4ABIeAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:418b,2606:4700:3033::ac43:be9a |
| TXT Record |
|---|
| MS=ms66417747 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (markholt-partners.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network markholt-partners.dk: 104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335) www.markholt-partners.dk: 104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-markholtpartners-dk02b._domainkey.holmmarcher1.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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.markholt-partners.dk | AwuyldEX2TJ_h_Ex1U-UIMlbwY1w69IDoSDbCWC__bY |
| TXT | _acme-challenge.markholt-partners.dk | SWGjut1jkvMpb0rxqqxhSIM6vFXfbQTfw06UI_nBEMc |
| 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 | 2415685337 |
| Primary NS (MNAME) | isla.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 17:59:14 | 592ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 11:25:33 | 1288ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 16:33:54 | 1405ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 16:21:50 shown | 1125ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 14:36:12 | 1572ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 20:10:00 | 1365ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-24 19:07:31 | 2360ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 21:47:51 | 1224ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 14:02:55 | 1708ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 15:11:01 | 1122ms | 2 NS 2 A 1 MX | ❓ Unknown |