I found the best way to run an internet speed test (and use the results for better Wi-Fi)

After a decade of testing PCs, routers, and home networks, I know what causes slow speeds and how to optimize your internet.
CNET

Internet Throttling Still Exists. Here's How to Protect Yourself From It

If you've checked your internet speed through an Ethernet connection and your results haven't improved, you might want to check if your provider is to blame. A simple connection speed test, like the ...
Wired

Slow Internet? Here’s How to Run a Wi-Fi Speed Check

You really should run an internet speed test to check your Wi-Fi connection. Knowing a few key data points, like your download speed and upload speed, will help you ...
AOL

Suffering From Slow Internet? Your Internet Provider Could Be Throttling Your Speeds

The internet isn't just for checking email, or popping into social media anymore. These days we use it for Zoom meetings, watching shows on your favorite streaming service, or connecting with friends.