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Rendertron is a headless Chrome rendering solution designed to render & serialise web pages on the fly. Rendertron is designed to enable your Progressive Web App (PWA) to serve the correct content to any bot that doesn't render or execute JavaScript. Rendertron runs as a standalone HTTP server. Rendertron renders requested pages using Headless Chrome, auto-detecting when your PWA has completed loading and serializes the response back to the original request. To use Rendertron, your application configures middleware to determine whether to proxy a request to Rendertron. Rendertron is compatible with all client side technologies, including web components. It is not designed to be used as a production endpoint. You can use it, but there are no uptime guarantees. Once you have the service up and running, you'll need to implement the differential serving layer. This checks the user agent to determine whether prerendering is required.
Features
- The render endpoint will render your page and serialize your page
- The screenshot endpoint can be used to verify that your page is rendering correctly
- Additional options are available as a JSON string in the POST body
- The service attempts to detect when a page has loaded by looking at the page load event
- There is a hard limit of 10 seconds for rendering
- Headless Chrome supports web components
Project Samples
