A/B testing - Wikipedia

Click Speed Test / CPS Test - Check Clicks Per Second (*NEW*)

CPS Test / CPS Tester - Check Your CPS with Clicks Tracking Chart

Fast Click Speed Test - Clicks Per Second (Dexter CPS tests)

Click Speed Test - Check Your Clicking Speed Test With Clicker Test

How to Click Faster: Selenium vs The World Faster Clicker - DEV Community

Spacebar Counter Test Your Spacebar Clicking Speed

Logging into a HackerRank Test – HackerRank Candidates

Online tests – Populi Knowledge Base

Clicking Speed Test - Riimu's Cookie Clicker Optimizer

Creating a first-click test – Maze Help