Throttling is the intentional slowing down of an internet connection, typically by an internet service provider (ISP). This can be done for a variety of reasons, such as to manage network congestion or to prevent abuse of a service. If you suspect that your internet connection is being throttled, there are a few things you can do to check.
One way to check for throttling is to use an online speed test. There are a number of websites that offer free speed tests, such as Ookla’s Speedtest.net. When you run a speed test, it will measure your download and upload speeds. If your speeds are significantly lower than what you expect, it could be a sign that your connection is being throttled.