Network

Find the public IP used by your connection. See IPv4 or IPv6, approximate location and network details when providers return them; copy or refresh the result.

Calculate IPv4 CIDR subnets, masks, ranges and host counts, inspect binary details, or split a network into power-of-two subnets.

Send browser-based HTTP requests with query parameters, headers, JSON or form bodies, auth, collections and environments; inspect response metadata and body.

Query A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA or PTR records through Cloudflare DNS over HTTPS, then inspect status, TTL and data.

Look up a domain’s registration data through the IANA RDAP bootstrap and export the observed response, status and event summary.