One way to check is to run a speed test—there are numerous such tests available online at sites like Speakeasy and BroadbandReports.com.
With a test in place, try downloading a torrent. If the torrent traffic is notably slower, it could indicate throttling. Another indicator is to check your Torrent speeds by experimenting with encryption, as discussed in part two of our series. If you get faster speeds when you encrypt your traffic, it’s also an indicator that your ISP is traffic shaping.