DNS providers used by 1,640,723 domains

Who answers DNS queries for each indexed domain. The breakdown comes from the first authoritative NS we observed — split-zone setups across two providers are rare and fall into other.

Method

We classify the first NS host with a pattern table: *.ns.cloudflare.com → Cloudflare, ns-*.awsdns-*.org → AWS Route53, and so on. Self-hosted nameservers and unrecognised providers land in the trailing bucket.