Worker for measuring download / upload connection speed from the client side, using the Performance Timing API.
index.js is the content of the Workers script.
Note: when running this as your own worker, your latency measurements may differ a small amount from the official version. This is due to the fact that we rely on an internal mechanism to determine the amount of server processing time, which is then subtracted from the measurement.
You can use wrangler to generate a new Cloudflare Workers project based on this template by running the following command from your terminal:
wrangler generate myApp https://github.com/cloudflare/worker-speedtest-template
Before publishing your code you need to edit wrangler.toml file and add your Cloudflare account_id - more information about publishing your code can be found in the documentation.
Once you are ready, you can publish your code by running the following command:
wrangler publish
To deploy using serverless add a serverless.yml file.
This worker exposes two endpoints designed to support the measuring of bandwidth and latency from the client side.
GET /down Request binary content of a certain size
| Param | Description | Required | Default |
|---|---|---|---|
| bytes | The size of the response body in bytes | no | 0 |
Example: /down?bytes=10000
POST /up Receive content posted to the server
The content is discarded by the endpoint. A response is sent once all the content has been received from the client.
No query string parameters.