> For the complete documentation index, see [llms.txt](https://cloudbrowser.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cloudbrowser.gitbook.io/docs/cloud-service/best-practices.md).

# Best practices

Besides setting everything up and running smoothly, there are a few best practices to ensure your sessions perform efficiently. Here are some key tips for maintaining healthy headless scripts.

**Close Your Session Properly**

When you finish your tasks or encounter errors, make sure to run `browser.close()` to free up resources for other sessions. While CloudBrowser will terminate long-running sessions based on the timeout setting, it’s always good practice to close sessions neatly once you’re done.

```javascript
const browser = await puppeteer.connect({
  browserWSEndpoint: `WebSocketDebuggerUrl`,
});

const page = await browser.newPage();

try {
  await page.goto('https://www.cloudbrowser.ai/');
  await page.screenshot({ path: './image.png' });
  browser.close();
} catch (error) {
  console.error({ error }, 'Something went wrong!');
  browser.close();
}
```

**Minimize `await` Usage**

Since most Puppeteer commands are asynchronous, using `await` (or `.then`) results in round-trips between your application and CloudBrowser. Although you can’t eliminate this entirely, you should minimize it as much as possible. For example, use `page.evaluate` instead of multiple `page.$selector` calls to perform more actions in a single evaluate.

**Avoid This:**

```javascript
const $button = await page.$('.buy-now');
const buttonText = await $button.getProperty('innerText');
const clicked = await $button.click();
```

**Do This Instead:**

```javascript
const buttonText = await page.evaluate(() => {
  const $button = document.querySelector('.buy-now');
  const clicked = $button.click();

  return $button.innerText;
});
```