jesperkarlshoj.dk is a .dk domain served by 2 nameservers (gerald.ns.cloudflare.com, may.ns.cloudflare.com). It was registered on 8 December 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.92 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mxext1.mailbox.org, mxext2.mailbox.org and 1 more. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.65.92 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.189.183 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.mailbox.org → 185.97.174.46 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:bdb7 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:415c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.65.92,172.67.189.183 ech=AEX+DQBBtAAgACBWD1tDsBTbQglXmyZSdqAd95aQk1ur/CTll9Dy4zOWewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:bdb7,2606:4700:3036::6815:415c |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | mailbox.org |
| TXT Record |
|---|
| v=spf1 include:mailbox.org ~all |
| Policy | Record (jesperkarlshoj.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:mailbox.org ~all |
| Policy | Record (_dmarc.jesperkarlshoj.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;rua=mailto:postmaster@jesperkarlshoj.dk |
| www | Exists, no address |
| www vs bare domain | www does not resolve jesperkarlshoj.dk: 104.21.65.92 172.67.189.183 2606:4700:3030::ac43:bdb7 2606:4700:3036::6815:415c (AS13335) (all like this)www.jesperkarlshoj.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2412397052 |
| Primary NS (MNAME) | gerald.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 | 2021-12-08 |
| Expires | 2027-12-07 (406d) |
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).
| Domain | Registrar |
|---|---|
| fievé.dk | Punktum dk A/S (direct) |
| streamix.dk | Punktum dk A/S (direct) |
| uxxu.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 00:47:36 | 1657ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-10-03 00:45:35 | 965ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-09-29 23:26:28 | 908ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-09-24 13:04:39 | 1322ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-09-14 21:25:14 | 3987ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-08-26 19:35:23 | 1329ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-08-25 13:45:33 shown | 1200ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-08-17 03:08:50 | 5207ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-07-27 04:12:05 | 25636ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-07-24 02:29:19 | 9878ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-07-14 16:37:40 | 11042ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-06-30 10:19:30 | 2076ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-06-26 18:37:19 | 2645ms | 2 NS 2 A 3 MX | 🔒 Secure |
| 2026-06-22 02:41:52 | 912ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 07:52:42 | 24233ms | 2 NS 2 A 3 MX | 🔒 Secure |