Command line bandwidth speed test4/15/2024 ![]() ![]() Remember the speed testing business is about money - about attracting a lot of testers to get baselines and sell the results - they also show ads on their web - so your data is being collected and the service is not because of your pretty blue eyes - it’s the data you provide them. You could then upload the same file to a server under your control again using time and any upload method supported by your server. You would likely get more accurate result by timing your download using time and curl then calculate the transfer by hand. I wouldn’t go as far as saying lies more like inaccurate which likely describes the results better. In fact when using ookla from the web browser - the calculations is always showing a better speed than my subscription allows for - which makes me think the algorithm for the ookla web test is too generous - but I have no way of knowing for sure. I have noted the differences with speedtest-cli as well - but it is nothing to worry about - it likely due to differences in calculations and you should not put too much trust into them. This is just the scenarios I could pull from memory - there’s likely more.Įven if you are using a browser based test - the browser may influence the test - e.g.browser plugins/add-on. This is a new implementation that shares no code with the original. For each test it reports the bandwidth, loss, and other parameters. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6).
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