🌐 System & Network

Network lookups and browser diagnostics for day-to-day debugging.

Validate an IP and see version, scope, and reserved range details.

Query DNS records for a domain with A, AAAA, MX, TXT, and NS.

Fetch domain registration details with RDAP, including dates, status, and nameservers.

Check whether an HTTP or HTTPS endpoint responds on a specific port.

Parse any user agent string into browser, OS, engine, and device.

See your browser, platform, screen, and feature support details instantly.

Enter a domain and see how old it is, when it was registered, and when it expires.