jkoffice.dk is a .dk domain served by 2 nameservers (brodie.ns.cloudflare.com, oaklyn.ns.cloudflare.com). It was registered on 7 August 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.86.241 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by jkoffice-dk.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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.86.241 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.137.241 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| 🔶 Autoconfig | 81.95.249.204 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a06:98c1:3120::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| 2a06:98c1:3121::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.86.241,172.67.137.241 ech=AEX+DQBBkQAgACD27vCTFy0mu1pqNS36tsbP2m178zSs5RNpG3m8pMc7HQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:56f1,2606:4700:3033::ac43:89f1 |
| TXT Record |
|---|
| MS=ms67411285 |
| v=spf1 +mx +a +ip4:77.235.62.181 include:spf.protection.outlook.com ~all |
| Policy | Record (jkoffice.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +mx +a +ip4:77.235.62.181 include:spf.protection.outlook.com ~all |
| www | 104.21.86.241 172.67.137.241 2606:4700:3031::6815:56f1 2606:4700:3033::ac43:89f1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network jkoffice.dk: 104.21.86.241 172.67.137.241 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.jkoffice.dk: 104.21.86.241 172.67.137.241 2606:4700:3031::6815:56f1 2606:4700:3033::ac43:89f1 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 3/10 · policy: ~all
No problems found| 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 | 2417031322 |
| Primary NS (MNAME) | brodie.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 | 2009-08-07 |
| Expires | 2028-08-31 (681d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 22:22:01 shown | 1277ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 16:37:44 | 1241ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 15:20:08 | 3380ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 07:39:19 | 10389ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-28 06:11:33 | 886ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 05:57:35 | 2498ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 16:22:50 | 2174ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-22 11:25:36 | 2758ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 06:54:01 | 9432ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-11 15:41:46 | 2214ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 14:44:07 | 2725ms | 2 NS 2 A 1 MX | 🔓 Insecure |