Cloudflare Browser Rendering FAQs

Question 1

What is the best way to handle large batch scraping tasks?

Accepted Answer

Use multiple tabs (newPage) within a single browser instance instead of launching multiple browsers, and combine this with Cloudflare KV to cache results and minimize redundant rendering.

Question 2

How do I avoid browser timeouts in Cloudflare Workers?

Accepted Answer

Workers have a 60-second execution limit. To avoid timeouts, optimize your page loads, use session reuse to avoid repeated launches, and break complex tasks into smaller, parallel worker requests.

Question 3

Can I use XPath with Cloudflare Browser Rendering?

Accepted Answer

XPath is not natively supported in the Workers environment for security reasons. You should use CSS selectors or execute XPath via page.evaluate() using the browser's internal XPathEvaluator.

Question 4

Does Cloudflare Browser Rendering support session reuse?

Accepted Answer

Yes, you can manage sessions using Durable Objects or the Puppeteer sessions API, allowing you to connect to existing browser instances and reduce latency.

Question 5

Which library should I use: Puppeteer or Playwright?

Accepted Answer

Puppeteer is generally recommended for Cloudflare Workers as it currently offers more mature session management and advanced API support specifically tailored for the Cloudflare environment.

Cloudflare Browser Rendering

概要

主な機能

ユースケース

Cloudflare Browser Rendering

概要

主な機能

ユースケース