The right way to run an internet speed test (and how I use the results for better Wi-Fi)

After a decade testing PCs, routers, and home networks, I know what causes slow speeds and can help you optimize your internet connection.
ZDNet

Yes, your internet provider can throttle your speed. Here's an easy solution that may help

There are myriad reasons your internet connection might be slow. There is a checklist for troubleshooting most of these issues, and the solutions range from surprisingly easy to complex and expensive.