This topic is from another forum site, so I suppose there can be a topic about it here, too. Ookla speed test is for measuring your download and upload speeds, and ping, and rating your ISP. It is at www.speedtest.net
The upload/download is measured in megabits (Mb). 1 Mb = 0.125 megabytes (MB), so 1 MB = 8 Mb.
The ping is in milliseconds. 1,000 milliseconds = 1 second.
Then you paste the image url here and compare speeds, for fun. (:
If for privacy reasons you don't want your country or cities or ISP to be shown, you can just type the download, upload, ping and grade results.