aeroexpressen.dk is a .dk domain served by 2 nameservers (amy.ns.cloudflare.com, john.ns.cloudflare.com). It was registered on 28 December 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.229 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aeroexpressen-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.45.229 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.219.176 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:dbb0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:2de5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.45.229,172.67.219.176 ech=AEX+DQBBYwAgACCcldFVjb0B8b+NBAEHq6qZSXeu/mrhXC2wv4qhPnVTRgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:dbb0,2606:4700:3037::6815:2de5 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 ip4:212.112.140.148 ip4:212.112.140.149 a:smtp.teambooking.dk include:spf.protection.outlook.com include:_spf.e-studio.dk ip4:185.21.42.89 include:spf.curanet.dk -all |
| Policy | Record (aeroexpressen.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:212.112.140.148 ip4:212.112.140.149 a:smtp.teambooking.dk include:spf.protection.outlook.com include:_spf.e-studio.dk ip4:185.21.42.89 include:spf.curanet.dk -all |
| Policy | Record (_dmarc.aeroexpressen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:it@aeroexpressen.dk; |
| www | 104.21.45.229 172.67.219.176 2606:4700:3031::ac43:dbb0 2606:4700:3037::6815:2de5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network aeroexpressen.dk: 104.21.45.229 172.67.219.176 2606:4700:3031::ac43:dbb0 2606:4700:3037::6815:2de5 (AS13335) www.aeroexpressen.dk: 104.21.45.229 172.67.219.176 2606:4700:3031::ac43:dbb0 2606:4700:3037::6815:2de5 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u17271618.wl119.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u17271618.wl119.sendgrid.net | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-aeroexpressen-dk._domainkey.aeroexpressenasdk.q-v1.dkim.mail.microsoft | 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: 6/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.aeroexpressen.dk | aeroexpressen.dk.acme.webpod5-cph3.one.com |
| 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 | 2412664749 |
| Primary NS (MNAME) | amy.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 | 2016-12-28 |
| Expires | 2026-12-31 (75d) |
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 |
|---|---|
| aeroeexpressen.dk | Punktum dk A/S (direct) |
| ærøxpressen.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 10:13:10 | 996ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 21:18:56 | 2008ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 20:00:27 | 966ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-19 00:08:58 | 1383ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-11 22:01:50 | 1100ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 20:51:02 shown | 10446ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-28 02:13:10 | 1188ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 12:52:45 | 878ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 09:18:18 | 1997ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 13:56:51 | 1088ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 19:54:41 | 3569ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 07:48:02 | 1031ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 15:39:43 | 1393ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:13:42 | 1724ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 17:24:15 | 1177ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:48:05 | 1662ms | 2 NS 2 A 1 MX | 🔓 Insecure |