You can throttle the network in your headless chrome via Selenium. This might be useful for debugging issues with flaky integration tests or slow page simulations.

page.driver.browser.network_conditions = {offline: false, latency: 5, download_throughput: 2 * 1024, upload_throughput: 2 * 1024}

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The settings will match to the following UI component in Chrome:

Were the values for the default profiles might match the values from this post Show archive.org snapshot :

Slow 3G Custom:

• download_throughput: 376 * 1024
• latency: 2000

Fast 3G Custom:

• download_throughput: 1500 * 1024
• latency: 550