aars-festudlejning.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 17 November 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.96.142 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.96.142 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.181.239 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:608e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:b5ef | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.96.142,172.67.181.239 ech=AEX+DQBBqQAgACCZMhop6ccgNJNhXgbP/BN6WBMSDGnfefZmY+5pDPH4IwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:608e,2606:4700:3031::ac43:b5ef |
| TXT Record |
|---|
| v=spf1 a include:spf.curanet.dk ~all |
| Policy | Record (aars-festudlejning.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a include:spf.curanet.dk ~all |
| www | 104.21.96.142 172.67.181.239 2606:4700:3030::6815:608e 2606:4700:3031::ac43:b5ef (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network aars-festudlejning.dk: 104.21.96.142 172.67.181.239 2606:4700:3030::6815:608e 2606:4700:3031::ac43:b5ef (AS13335) www.aars-festudlejning.dk: 104.21.96.142 172.67.181.239 2606:4700:3030::6815:608e 2606:4700:3031::ac43:b5ef (AS13335) |
| Wildcard | No |
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.aars-festudlejning.dk | b3heKCVuWcWlLpUS5_7Grzm-gNo9xRageA1Z_Bu2s84 |
| TXT | _acme-challenge.aars-festudlejning.dk | cbV2UrWCpVf99Bj2iL04XfzbvLC13n5oXR2Z-3WOMFo |
| 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 | 2416347907 |
| Primary NS (MNAME) | barbara.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 | 2022-11-17 |
| Expires | 2026-11-16 (26d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 17:47:12 | 736ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 17:46:14 shown | 853ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-30 17:41:39 | 543ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 16:04:28 | 564ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 15:24:21 | 1090ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-06 20:46:01 | 1203ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-30 09:43:30 | 867ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-20 17:14:38 | 1035ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-16 12:46:00 | 696ms | 2 NS 2 A 2 MX | 🔓 Insecure |