cs-construction.dk is a .dk domain served by 2 nameservers (carlos.ns.cloudflare.com, kimora.ns.cloudflare.com). It was registered on 14 October 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.77.134 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by csconstruction-dk0e.mail.protection.outlook.com. 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 |
|---|---|---|---|
| carlos.ns.cloudflare.com | — | — | — |
| kimora.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.77.134 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.208.143 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:4d86 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:d08f | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.77.134,172.67.208.143 ech=AEX+DQBBAgAgACDurI0kjS+pgI4tREFXZNZReDzCEtZ7GTrS4X0Uec/8AwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4d86,2606:4700:3032::ac43:d08f |
| TXT Record |
|---|
| MS=ms19833011 |
| MS=ms78878038 |
| v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk include:web.shared.mysmtp.com ~all |
| Policy | Record (cs-construction.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk include:web.shared.mysmtp.com ~all |
| www | 104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network cs-construction.dk: 104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335) www.cs-construction.dk: 104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-csconstruction-dk0e._domainkey.csconstructiondk.onmicrosoft.com | 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: 8/10 · policy: ~all
| 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 | 2403398777 |
| Primary NS (MNAME) | carlos.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 | 2004-10-14 |
| Expires | 2026-10-31 (14d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-08 15:43:42 | 2114ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-21 21:49:57 | 9508ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-23 22:10:52 | 1559ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:12:57 | 65535ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:06:03 shown | 728ms | 2 NS 2 A 1 MX | 🔓 Insecure |