Best Speed Test Websites for Linux of 2025

Dotcom-Tools' website speed test allows users to test up to three locations worldwide, including behind the Great Firewall of China. This ensures that your website is accessible from users in China. Users can access detailed performance reports and waterfall charts once the test is completed. Users can also choose which browser to test with. This test is compatible with Chrome, Edge, and mobile browsers such as Android, iPhone, iPad, and more!

Engineered to emulate your actual connection speed, this tool utilizes cutting-edge technology to assess your bandwidth capabilities. It is suitable for evaluating connections ranging from 1 Kbps to over 1 Gbps, and our algorithm efficiently identifies your consistent download and upload speeds directly from our servers. Built using HTML5, this application eliminates the need for Flash or Java, providing a clearer insight into your web browser's performance. The speed measurement reflects the connection between your device and the server, with the final outcome being the average of the highest download and upload burst rates recorded during the test. Your results may fluctuate at different times due to various factors like network congestion and the browser in use, so it is advisable to conduct tests at varying times throughout the day for a comprehensive analysis of your bandwidth. This application also allows for a quick launch of a speed test server without requiring command line inputs, and it can operate offline, making it ideal for testing your Local Area Network or WiFi, or for deploying on a server to evaluate your speed. Additionally, you can easily track performance changes over time to ensure that your connection remains reliable.