Step 1

Choose the browsers your website supports

Include each browser your website promises to support, then choose the oldest accepted version. ControlCurrent does not detect your browser or send these choices to a server.

Chrome
Edge
Firefox
Safari
Chrome for Android
Firefox for Android
Safari on iOS
Android WebView
Samsung Internet

Or start with the features you need

Find the oldest browser versions that will work

Choose the security features and browsers you need. ControlCurrent searches its reviewed browser history and shows the earliest versions that support that combination. If it cannot give a reliable answer, it explains what blocked the calculation.

Required controls
Content execution
Cross-origin isolation
Browser privacy
Transport and response hardening
Authentication
Browser families