Selenium Server, also known as Selenium Grid, is a part of the Selenium Suite that allows users to run tests on multiple machines and browsers in parallel. It acts as a proxy server, routing test commands from the test script to the browser instance.
Selenium Server is not obsolete—it has evolved into a robust distributed execution engine. While modern alternatives exist for specific niches, Selenium Grid remains the most vendor-neutral, self-hostable solution for running automated browser tests across diverse environments. Understanding its architecture, security pitfalls, and configuration options is essential for any team implementing scalable web automation. selenium server