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Version: 16.1.0

networkConditions variable

A list of network conditions to be used with page.emulateNetworkConditions(networkConditions). Actual list of predefined conditions can be found in src/common/NetworkConditions.ts.


networkConditions: Readonly<{
'Slow 3G': NetworkConditions;
'Fast 3G': NetworkConditions;


const puppeteer = require('puppeteer');
const slow3G = puppeteer.networkConditions['Slow 3G'];

(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.emulateNetworkConditions(slow3G);
await page.goto('');
// other actions...
await browser.close();