weltklasse.dk is a .dk domain served by 2 nameservers (dean.ns.cloudflare.com, joan.ns.cloudflare.com). It was registered on 9 May 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by weltklasse-dk.p-v1.mx.microsoft. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.26.2.21 | — | — | AS13335 | — | — | — | — |
| 104.26.3.21 | — | — | AS13335 | — | — | — | — |
| 172.67.68.37 | — | — | AS13335 | — | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:20::681a:215 | — | — | AS13335 | — | — | — | — |
| 2606:4700:20::681a:315 | — | — | AS13335 | — | — | — | — |
| 2606:4700:20::ac43:4425 | — | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.26.2.21,104.26.3.21,172.67.68.37 ech=AEX+DQBB+gAgACDXo7/7SbY1FdAaP7bfge0cVMs2IPJyyK+rgWhh7CQ0awAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:20::681a:215,2606:4700:20::681a:315,2606:4700:20::ac43:4425 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| brevo-code:8951b3b113a8b213985fa34ad1de447e |
| MS=ms86100869 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (weltklasse.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.weltklasse.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com |
| www | 104.26.2.21 104.26.3.21 172.67.68.37 2606:4700:20::681a:215 2606:4700:20::681a:315 2606:4700:20::ac43:4425 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network weltklasse.dk: 104.26.2.21 104.26.3.21 172.67.68.37 2606:4700:20::681a:215 (AS13335) www.weltklasse.dk: 104.26.2.21 104.26.3.21 172.67.68.37 2606:4700:20::681a:215 (AS13335) |
| 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 |
|---|---|---|
| — | RSA · ~1024 bit below 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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | C495D9E40F7E625BE22F83CC64305182… |
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 38D895F5105BC2545822C17A2444F4B0… |
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 5F88694615E4C61686E106B84C3338C6… |
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 6EBFF927297A5B3AAF5EAE672252C36A… |
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 133086C7B822371A4A3304F1661A7880… |
| SMTP _25._tcp.weltklasse-dk.p-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | A6C267923B26A4A9617EDA73D8DB4FBC… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2407134904 |
| Primary NS (MNAME) | dean.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 | 2005-05-09 |
| Expires | 2027-05-31 (215d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 06:30:27 | 2918ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-18 05:32:57 | 2666ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-17 04:58:06 | 631ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-15 02:16:26 | 639ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-14 02:04:13 | 1208ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-13 01:16:34 | 2141ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-08 18:39:54 | 1050ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-07 18:32:57 | 626ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-06 00:18:53 | 538ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-05 00:15:22 | 1011ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-03 00:06:39 | 687ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-29 23:55:21 | 618ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-27 11:41:08 | 1891ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-23 10:41:29 | 954ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-18 03:54:57 | 1398ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-15 04:07:07 | 2995ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-13 21:59:08 | 1801ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-12 15:13:48 | 1649ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-06 19:50:26 | 2734ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-30 17:46:53 | 1763ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-24 05:05:26 | 1609ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-23 04:17:38 | 2907ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-21 03:45:15 | 11374ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-19 00:52:49 | 1940ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-16 09:54:55 | 1523ms | 2 NS 3 A 1 MX | 🔒 Secure |