kfnu.dk is a .dk domain served by 2 nameservers (keaton.ns.cloudflare.com, perla.ns.cloudflare.com). It was registered on 19 June 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.24.211 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by d353743a.ess.barracudanetworks.com, d353743b.ess.barracudanetworks.com. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.24.211 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.220.207 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:dccf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:18d3 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.24.211,172.67.220.207 ech=AEX+DQBBLwAgACBhZV/aFgJ0XnThHbp4jm3AI/QQxKSlCxoW4wdyBilwbwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:dccf,2606:4700:3034::6815:18d3 |
| TXT Record |
|---|
| MS=ms39931474 |
| v=spf1 +a +mx +ip4:35.214.211.191 +ip4:20.160.196.127 include:spf.protection.outlook.com include:kfnu.dk.spf.auto.dnssmarthost.net include:spf.ess.de.barracudanetworks.com include:spf.ess.barracudanetworks.com ~all |
| Policy | Record (kfnu.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +ip4:35.214.211.191 +ip4:20.160.196.127 include:spf.protection.outlook.com include:kfnu.dk.spf.auto.dnssmarthost.net include:spf.ess.de.barracudanetworks.com include:spf.ess.barracudanetworks.com ~all |
| Policy | Record (_dmarc.kfnu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; aspf=r; adkim=r; |
| www | 104.21.24.211 172.67.220.207 2606:4700:3031::ac43:dccf 2606:4700:3034::6815:18d3 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | kfnu.dk.default.dkim.auto.dnssmarthost.net | RSA · ~1024 bit below 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: 7/10 · 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 | 2416638658 |
| Primary NS (MNAME) | keaton.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2023-06-19 |
| Expires | 2027-06-18 (240d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 20:02:44 shown | 1926ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-03 19:47:53 | 869ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-01 19:59:47 | 728ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 19:53:15 | 855ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-24 21:47:13 | 807ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-02 11:09:06 | 1843ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-30 19:19:16 | 804ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-18 05:07:41 | 889ms | 2 NS 1 A 2 MX | 🔓 Insecure |