There are many websites that offer internet speed tests that can measure your download and upload speeds, as well as other metrics such as latency and jitter. Here are a few options:
Speedtest.net: This is one of the most popular internet speed test websites. It allows you to test your download and upload speeds, as well as your ping time. You can choose from various server locations around the world to get a more accurate measurement of your internet speed.
Fast.com: This internet speed test website is provided by Netflix and is designed to be simple and easy to use. It measures your download speed only, and the test starts automatically when you load the website.
Google Speed Test: Google offers its own internet speed test, which can be accessed by typing "speed test" into the Google search bar. The test measures your download and upload speeds, as well as your ping time, and is powered by Measurement Lab.
Ookla Speedtest: Ookla offers a free internet speed test that measures your download and upload speeds, as well as your ping time. You can choose from various server locations around the world to get a more accurate measurement of your internet speed.
To perform an internet speed test, simply visit one of the above websites and click the "Start" or "Go" button to begin the test. The website will then measure your internet speed and provide you with a result. It is recommended to perform the test multiple times at different times of day to get a more accurate measurement of your internet speed.