Optimizing Headless Browser Performance for Fast Screenshot Rendering

Just wondering, what type of product or system requires you to take so many website screenshots so quickly? Is this for AI training or a similar purpose? I'm intrigued by what you're working on!

Before optimizing, ask yourself a few questions: Are you prioritizing latency or throughput? Do you know where the latency is coming from—whether it's from the request/response cycle, the Playwright API, or the actual screenshot capture? Also, make sure you're using a warm Chromium instance instead of starting fresh every time. And finally, are you measuring latency against local resources or remote ones? That can make a big difference.

Interestingly, you might not even need Playwright. You could run Chromium directly via CLI or use the Chrome DevTools Protocol (CDP). But to give you specific performance tips, I need to know more about your deployment. Are you on a serverless setup or using VPS? Can you cache any static resources? Are you rendering HTML or loading URLs? Do you connect to your browser via Unix sockets or TCP? More info would help us tailor some solutions for you!

I’ve been using Playwright on AWS Lambda for years, handling millions of requests successfully. I’d definitely stick with Playwright! To keep latency manageable, just make sure to initialize Playwright outside your Lambda handler to get better performance.

It sounds like you might be hitting session timeout limits with Puppeteer or Selenium. Headless Chrome tends to kill idle tabs after around 30 minutes, and this can lead to loss of cookies, especially with anti-bot measures in place. Using something like Anchor Browser helps with persistent sessions that maintain state over longer periods without crashing. I've managed to run over 50 tabs stable for 8-hour workloads with it!