jacas.dk is a .dk domain served by 2 nameservers (kurt.ns.cloudflare.com, laura.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.60.216 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by jacas-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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.60.216 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.201.204 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:3cd8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:c9cc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.60.216,172.67.201.204 ech=AEX+DQBB5QAgACDonO2ebRlwotg5vk0wZNuJ4fF2dQ1cKT6CcaLhqlQ8LwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:3cd8,2606:4700:3037::ac43:c9cc |
| TXT Record |
|---|
| google-site-verification=DCSqpEB9jlBVsB_RxBMTCdWZaT9SYbt4CmtAu7MKNqI |
| MS=ms32300758 |
| v=spf1 a include:spf.protection.outlook.com ip4:194.150.113.0/24 ip4:194.150.112.0/24 -all |
| Policy | Record (jacas.dk) |
|---|---|
| -all (hard fail) | v=spf1 a include:spf.protection.outlook.com ip4:194.150.113.0/24 ip4:194.150.112.0/24 -all |
| www | 104.21.60.216 172.67.201.204 2606:4700:3034::6815:3cd8 2606:4700:3037::ac43:c9cc (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.jacas.dk | U11yLZXqECpHWIhKuJ4DJOVOfxxyONpIsYMZetwvq-w |
| TXT | _acme-challenge.jacas.dk | gUhjpYPquCJQvJiDN4xqOrDZKsxHOWvLDXJSDFReOmU |
| 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 | 2415555664 |
| Primary NS (MNAME) | kurt.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 14:45:30 | 1222ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 04:16:43 | 957ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 03:56:51 | 870ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 03:57:21 | 1849ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-22 16:22:49 shown | 1109ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-02 12:01:09 | 1547ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 07:05:21 | 1157ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 13:43:05 | 1130ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-31 14:37:38 | 3351ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 04:33:39 | 1884ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-29 16:27:40 | 1382ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 12:20:06 | 794ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 19:46:06 | 1162ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:03:46 | 1451ms | 2 NS 2 A 1 MX | 🔓 Insecure |