clsolution.dk is a .dk domain served by 2 nameservers (rommy.ns.cloudflare.com, sreeni.ns.cloudflare.com). It was registered on 2 February 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.220 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by clsolution-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.29.220 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.149.214 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:1ddc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:95d6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.29.220,172.67.149.214 ech=AEX+DQBBIwAgACCqA7oNoIxh4s2EejyzrpzP47NvK4LKFPFfRI9UA4YJAAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1ddc,2606:4700:3035::ac43:95d6 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=172F5E454A4C138F99781F2E967D1E346ECFB5D1 |
| MS=ms85955556 |
| v=spf1 include:spf.protection.outlook.com include:spf-eu.mailssig.com -all |
| Policy | Record (clsolution.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf-eu.mailssig.com -all |
| Policy | Record (_dmarc.clsolution.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@clsolution.dk |
| www | 104.21.29.220 172.67.149.214 2606:4700:3033::6815:1ddc 2606:4700:3035::ac43:95d6 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network clsolution.dk: 104.21.29.220 172.67.149.214 2606:4700:3033::6815:1ddc 2606:4700:3035::ac43:95d6 (AS13335) www.clsolution.dk: 104.21.29.220 172.67.149.214 2606:4700:3033::6815:1ddc 2606:4700:3035::ac43:95d6 (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 |
DNS lookups: 2/10 · 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 | 2417031749 |
| Primary NS (MNAME) | rommy.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 | 2022-02-02 |
| Expires | 2028-02-01 (472d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 15:37:03 shown | 2823ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-04 12:40:19 | 1598ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-21 14:12:15 | 1677ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 22:30:35 | 2408ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-22 16:47:35 | 4941ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-06 16:23:39 | 2184ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-01 19:36:00 | 9013ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-23 00:41:54 | 1476ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-08 12:59:19 | 10513ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-24 11:35:12 | 2635ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-16 21:25:41 | 2532ms | 2 NS 2 A 1 MX | 🔒 Secure |