How to scrape JavaScript-rendered (SPA) websites

If a page looks empty when you "view source" but full in the browser, it's rendered client-side with JavaScript. A plain HTTP fetch won't see that content.

Use a headless browser

Enable JavaScript rendering so each page loads in a real headless browser before extraction. This makes SPA content (React, Vue, Angular) visible to your selectors.

Trigger lazy loading

For infinite-scroll pages, configure scroll steps so the crawler scrolls to load more items before capturing.

Get past bot walls

Combine rendering with realistic browser headers, a proxy and — when needed — automatic CAPTCHA solving to keep large crawls flowing.

With these in place, dynamic sites scrape just like static ones.