Sure, Netflix Fast.com is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself:  OpenSpeedTest .

  1. So is Ⓞ OpenSpeedTest

    Network Performance Estimation Tool

    ★ 2.4k network License: MIT

    SpeedTest by OpenSpeedTest™ is a Free and Open-Source HTML5 Network Performance Estimation Tool Written in Vanilla Javascript and only uses built-in Web APIs like XMLHttpRequest (XHR), HTML, CSS, JS, & SVG.

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