We’ve all been there. You’re trying to stream a movie, join a Zoom call, or just open a website, and suddenly your internet slows to a crawl. Before blaming your Wi-Fi or yelling at your service ...

If you want to check how fast (or slow) your internet is, the usual method is to go to speedtest.net, fast.com, or any of the bajillion other internet speed test sites. But if you have a Mac running ...