mathiasdolleris.dk is a .dk domain served by 2 nameservers (alina.ns.cloudflare.com, bayan.ns.cloudflare.com). It was registered on 29 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.47.178 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mathiasdolleris-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.47.178 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.149.126 | 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 |
|---|---|---|---|---|---|---|---|
| 2606:4700:3037::6815:2fb2 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:957e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.47.178,172.67.149.126 ech=AEX+DQBBwgAgACCoOOl2Sgultn5iL/MY5OZDAsuiClqVJCs5XSRokX8FTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:2fb2,2606:4700:3037::ac43:957e |
| TXT Record |
|---|
| MS=ms79559557 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (mathiasdolleris.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | Exists, no address |
| www vs bare domain | www does not resolve mathiasdolleris.dk: 104.21.47.178 172.67.149.126 2606:4700:3037::6815:2fb2 2606:4700:3037::ac43:957e (AS13335) (all like this)www.mathiasdolleris.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-mathiasdolleris-dk._domainkey.mdolleris.onmicrosoft.com | 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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2410888876 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2024-05-29 |
| Expires | 2027-05-28 (222d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 15:53:34 | 1031ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 04:21:07 | 1704ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-04 18:42:22 | 2087ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-29 09:16:35 | 2900ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 20:28:34 | 851ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-26 16:42:04 | 863ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-24 17:57:13 | 1508ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-02 13:12:15 shown | 1739ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-06 15:16:55 | 3689ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-23 17:43:06 | 3348ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-21 17:37:32 | 1171ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 12:53:22 | 1563ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 13:34:35 | 4972ms | 2 NS 2 A 1 MX | 🔒 Secure |