puppeteer/website/versioned_docs/version-10.0.0/puppeteer.page.emulatenetworkconditions.md

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Page](./puppeteer.page.md) &gt; [emulateNetworkConditions](./puppeteer.page.emulatenetworkconditions.md)

## Page.emulateNetworkConditions() method

<b>Signature:</b>

```typescript
emulateNetworkConditions(networkConditions: NetworkConditions | null): Promise<void>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  networkConditions | [NetworkConditions](./puppeteer.networkconditions.md) \| null | Passing <code>null</code> disables network condition emulation. |

<b>Returns:</b>

Promise&lt;void&gt;

## Remarks

NOTE: This does not affect WebSockets and WebRTC PeerConnections (see https://crbug.com/563644). To set the page offline, you can use \[page.setOfflineMode(enabled)\](\#pagesetofflinemodeenabled).

## Example


```js
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('https://www.google.com');
// other actions...
await browser.close();
})();

```