jesperlk.dk is a .dk domain served by 2 nameservers (luke.ns.cloudflare.com, rosalyn.ns.cloudflare.com). It was registered on 13 November 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.16.148 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cpanel.greait.cloud. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.16.148 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.213.160 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | cpanel.greait.cloud | 2a01:4f8:1c17:48f7::1 88.99.124.163 |
cpanel.greait.cloud cpanel.greait.cloud |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 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=104.21.16.148,172.67.213.160 ech=AEX+DQBB5AAgACAKEM7T1QcI8BKYfF5Gt2dJ+djljh7+kZo7SaWiwJl2JwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1094,2606:4700:3033::ac43:d5a0 |
| TXT Record |
|---|
| v=spf1 include:spf.cpanel.greait.cloud include:spf.protection.outlook.com -all |
| Policy | Record (jesperlk.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.cpanel.greait.cloud include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.jesperlk.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; |
| www | 104.21.16.148 172.67.213.160 2606:4700:3031::6815:1094 2606:4700:3033::ac43:d5a0 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network jesperlk.dk: 104.21.16.148 172.67.213.160 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.jesperlk.dk: 104.21.16.148 172.67.213.160 2606:4700:3031::6815:1094 2606:4700:3033::ac43:d5a0 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.jesperlk.dk | 6brtYG0kQixCNrYFmDhqG0sHX1BKsyIxlo8ag-9dtJQ |
| TXT | _acme-challenge.jesperlk.dk | ATYMDgc6rquGNHvUVytGno1yeEVuWfCNLW5ZKUdb01A |
| TXT | _acme-challenge.jesperlk.dk | V4Zr8BE3lb21TKL5N67rFj6y82wDtjW6oq30WSmRDuI |
| TXT | _acme-challenge.jesperlk.dk | d5JQ4-t_TaiTAMOEbtY-PgNpHgcfiUQyK6PCQDoNmZU |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2418255144 |
| Primary NS (MNAME) | luke.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Greait |
| Registered | 2011-11-13 |
| Expires | 2030-07-31 (1373d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 17:33:36 shown | 724ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-15 14:51:53 | 611ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-11 08:08:04 | 1913ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-29 20:19:40 | 1320ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-27 19:59:39 | 1196ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-26 19:33:16 | 1043ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-21 07:44:20 | 1355ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-18 01:31:22 | 2870ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-07 14:40:07 | 970ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 12:44:30 | 1579ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-25 18:46:16 | 1152ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-17 14:20:04 | 4481ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-16 05:50:23 | 8681ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-13 14:00:50 | 2682ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-31 06:21:22 | 1287ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-21 00:28:33 | 1109ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-19 10:34:51 | 1177ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-29 23:53:42 | 1105ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 13:19:19 | 2190ms | 2 NS 2 A 1 MX | 🔒 Secure |