While Selenium is primarily a functional testing tool, certain components can assist in basic performance testing when combined with other tools. Selenium itself is not optimized for high-scale load testing, but it can measure metrics like page load time and UI responsiveness under simulated conditions.

Key Components Useful for Performance Testing:

• Selenium WebDriver Directly interacts with browsers to automate actions and measure page load times or element rendering delays. Can be scripted to capture timestamps before and after page loads to calculate performance metrics. Example for measuring load time: from selenium import webdriver import time driver = webdriver.Chrome() start_time = time.time() driver.get("https://www.bstackdemo.com") load_time = time.time() - start_time print(f"Page Load Time: {load_time} seconds") driver.quit()

• Selenium Grid Enables parallel execution across multiple browsers and platforms, simulating multiple users accessing the application simultaneously. Useful for distributed load simulation and checking performance consistency across environments.