erasmussen.dk is a .dk domain served by 2 nameservers (felipe.ns.cloudflare.com, pat.ns.cloudflare.com). It was registered on 17 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.58 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is not DNSSEC-signed, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| felipe.ns.cloudflare.com | — | — | — |
| pat.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.15.58 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.161.188 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:f3a | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:a1bc | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.15.58,172.67.161.188 ech=AEX+DQBBOgAgACAa0+y4n1KX4T2blpfoPVbwuK30TP7kG5m/OtVvcR6jfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:f3a,2606:4700:3032::ac43:a1bc |
| www | 104.21.15.58 172.67.161.188 2606:4700:3032::6815:f3a 2606:4700:3037::ac43:a1bc (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network erasmussen.dk: 104.21.15.58 172.67.161.188 2606:4700:3032::6815:f3a 2606:4700:3037::ac43:a1bc (AS13335) www.erasmussen.dk: 104.21.15.58 172.67.161.188 2606:4700:3032::6815:f3a 2606:4700:3037::ac43:a1bc (AS13335) |
| Wildcard | No |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| 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 | 2406799788 |
| Primary NS (MNAME) | felipe.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2022-03-17 |
| Expires | 2027-03-16 (149d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 08:50:42 | 852ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-01 06:17:01 | 544ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-21 00:29:58 | 1655ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-12 01:26:31 | 1124ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-23 04:20:15 | 9770ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-27 00:25:33 | 953ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-25 04:40:10 | 1058ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-25 00:53:03 | 2964ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-22 21:25:55 | 1096ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:08:39 | 4406ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-17 08:23:35 | 18201ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-17 08:17:17 | 2496ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-17 08:00:40 | 743ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-17 08:00:06 shown | 1257ms | 2 NS 2 A 4 MX | 🔓 Insecure |