Bandwidth Speed Test to Backblaze

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Test your connection to Backblaze.

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Unthrottled Backups
Backblaze provides completely unlimited storage and unlimited bandwidth, enabling you to backup as fast as your Internet connection permits.

Automatic Throttle
Use the Internet bandwidth you have most efficiently. Switching between fast and slow connections? Backblaze automatically adjusts the speed of backups.

Manual Throttle
Turning 'Automatic Throttle' off enables the manual Throttle slider, allowing you to set how much of your Internet bandwidth to use for backups. Slide the Throttle:

To the left ("Faster Network") to use less of your bandwidth and backup slower.
To the right ("Faster Backups") to use more of your bandwidth and backup faster.
All the way to the right to use all of your bandwidth, no matter how much you have.

Note: the maximum bandwidth you can use will always be limited by the speed of your actual upstream Internet connection.