Boosteroid Speedtest results : use the webapp instead of the desktop client (tests have been made multiple times in the same couple of minutes - all of them depict the same differences) :
Speed Tests
How to know the internet speed on a PC - Quora
10 Trusted Tools for Checking Internet Speeds (Desktop & Mobile) | Fancycrave
Speedtest for Desktop: Internet speed test for your Mac or PC
When Easy isn't Enough
Internet Speed Test 100% Free of Clutters | Dong Knows Tech
Speedtest - Desktop App for Mac, Windows (PC), Linux - WebCatalog
Speedtest by Ookla - Microsoft Apps
Ookla's new Speedtest app released for Windows 10
Measuring Internet Speed: Current Challenges and Future Recommendations | December 2020 | Communications of the ACM
Speedtest for Windows: Internet speed test for Windows
Browse thousands of Desktop Speedtest images for design inspiration | Dribbble
5 tools to test your Internet connection bandwidth speed – TechSansar.com
Speedtest Apps: Our internet speed test available across a variety of platforms
11 Best Tools to Run Windows Speed Test for your Internet
How to check internet speed in PC (Laptop/Desktop) - YouTube
Speedtest for Windows : Test Internet Speed on Desktop
Set Yourself Up to Effectively Work from Home or Learn Remotely
Run an internet speed test - Google Fiber Help
Speedtest by Ookla for Windows - Download it from Uptodown for free
Speedtest für Windows: Internet-Geschwindigkeitstest für Windows