leu.dk is a .dk domain served by 2 nameservers (diva.ns.cloudflare.com, kip.ns.cloudflare.com). It was registered on 20 October 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.118 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.y36.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.57.118 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.190.90 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.y36.dk | 91.226.144.161 | mail.y36.dk | AS216275 Netnoerden ApS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:be5a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:3976 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.57.118,172.67.190.90 ech=AEX+DQBBvgAgACD24gmTILd0Z/WnkYY5L23kOn2DhJNgCIM2lZufrsppdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:be5a,2606:4700:3037::6815:3976 |
| TXT Record |
|---|
| v=spf1 include:mail.y36.dk ~all |
| Policy | Record (leu.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:mail.y36.dk ~all |
| Policy | Record (_dmarc.leu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:59310507726445e8b3d10f2bf5b6ec4b@dmarc-reports.cloudflare.net |
| www | 104.21.57.118 172.67.190.90 2606:4700:3030::ac43:be5a 2606:4700:3037::6815:3976 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
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 | 2403955940 |
| Primary NS (MNAME) | diva.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Domeneshop AS |
| Registered | 2021-10-20 |
| Expires | 2035-10-19 (3289d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 18:49:48 | 1910ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-09 13:37:12 | 4564ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-08 05:50:07 | 2608ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-10 03:06:02 | 697ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 19:54:57 | 1906ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 02:52:23 | 6511ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 13:11:51 | 6620ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-09 14:05:06 | 14035ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-14 06:33:47 | 1338ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-07-10 23:56:04 | 1174ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-28 20:56:35 | 1630ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 18:47:50 | 2632ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 03:16:30 shown | 2150ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 00:06:55 | 948ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 03:50:52 | 777ms | 2 NS 2 A 1 MX | 🔓 Insecure |