chao.dk is a .dk domain served by 4 nameservers (ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.135.89 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.sendgrid.net. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|
| ns1-01.azure-dns.com | — | — | — |
| ns2-01.azure-dns.net | — | — | — |
| ns3-01.azure-dns.org | — | — | — |
| ns4-01.azure-dns.info | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 162.159.135.89 | — | — | AS13335 | Cloudflare, Inc. | 162.159.128.0/19 | — | — |
| 162.159.136.89 | — | — | AS13335 | Cloudflare, Inc. | 162.159.128.0/19 | — | — |
| TXT Record |
|---|
| google-site-verification=mixibpMIcZlp1kV9fHTarbtsgFGpXlxqMj15hBQjISY |
| Policy | Record (_dmarc.chao.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | chao.dk (all on chao.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u51272841.wl092.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u51272841.wl092.sendgrid.net | 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.
| 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 | 1 |
| Primary NS (MNAME) | ns1-01.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 00:16:44 | 725ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 01:29:04 | 987ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-22 06:15:42 | 9877ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-03 15:32:24 | 1941ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-30 16:03:44 | 1178ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 15:12:42 | 877ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 20:25:44 shown | 594ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 20:20:55 | 955ms | 4 NS 2 A 1 MX | 🔓 Insecure |