alexanderolsen.dk is a .dk domain served by 2 nameservers (alina.ns.cloudflare.com, etienne.ns.cloudflare.com). It was registered on 31 January 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.94.72 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.jbgaard.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.94.72 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.220.143 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.jbgaard.dk | 207.180.215.69 | vmi1279527.contaboserver.net | AS51167 Contabo GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.jbgaard.dk → 207.180.215.69 |
| 🔶 Autoconfig | mail.jbgaard.dk → 207.180.215.69 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:5e48 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:dc8f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imap._tcp | 0 | 1 | 143 | mail.jbgaard.dk |
| _imaps._tcp | 0 | 1 | 993 | mail.jbgaard.dk |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (alexanderolsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.alexanderolsen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:postmaster@alexanderolsen.dk |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 14245941950888728947 |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:postmaster@alexanderolsen.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:postmaster@alexanderolsen.dk |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve alexanderolsen.dk: 104.21.94.72 172.67.220.143 2606:4700:3035::6815:5e48 2606:4700:3037::ac43:dc8f (AS13335) (all like this)www.alexanderolsen.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.alexanderolsen.dk | 8IvJiMl_qJJuN5ZG-8XdPrWDH0mebuTRATEbQERnVRQ |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.jbgaard.dk | DANE-TA · SPKI · SHA-256 | D016E1FE311948ACA64F2DE44CE86C9A… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-TA · SPKI · SHA-512 | F8A2B4E23E82A4494E9998FCC4242BEF… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-EE · Full cert · SHA-256 | 18DF6C10094DE66E0EEFE2EE88632D60… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-EE · Full cert · SHA-512 | 3EEB622458CE2D5AB772C52A6319BB0E… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-EE · SPKI · SHA-256 | A0F703393BCA7A031BEBA9CD00ECCD4C… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-EE · SPKI · SHA-512 | C783B832B31BE1D29A961F5B702D78FF… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-TA · Full cert · SHA-256 | 76E9E288AAFC0E37F4390CBF946AAD99… |
| SMTP _25._tcp.mail.jbgaard.dk | DANE-TA · Full cert · SHA-512 | AFAB698CBBBF892EBB555E09175056C1… |
| 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 | 2415142663 |
| Primary NS (MNAME) | alina.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-01-31 |
| Expires | 2027-01-30 (104d) |
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 |
|---|---|
| missefar.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 12:02:41 shown | 730ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-19 03:20:28 | 1324ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 14:42:37 | 1724ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 17:05:37 | 1370ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-24 18:58:03 | 3570ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 14:16:55 | 17926ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-17 21:51:18 | 1257ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-21 20:00:17 | 1605ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-18 18:22:07 | 9389ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 18:38:25 | 1375ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 00:28:18 | 1288ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:52:35 | 1950ms | 2 NS 2 A 1 MX | 🔓 Insecure |