Speedtest in 4k

No Flash, No Java, No Websocket, No Bullshit.

This is a very small Speedtest implemented in Javascript, using XMLHttpRequest and Web Workers.

Try it

Take a Speedtest

Compatibility

Microsoft Edge, Firefox 10+, Chrome 10+, Opera 15+, Safari 7 (not tested)

Requirements

A reasonably fast web serve
Some way to generate garbage data using either the included PHP script, a big file of random data, or a symlink to /dev/urandom
Your server must not compress the data it sends
Your server must accept large POST requests (up to 10 Megabytes), otherwise the upload test will fail
Client side, there must not be any type of buffering (such as a proxy), or you may get incorrect results

How to use

See example.html, it's not rocket science.

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see https://www.gnu.org/licenses/lgpl.

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