Webrecorder and High-Fidelity Archiving
Client-side capturing techniques for dynamic, JS-heavy web applications.
The Limits of Automated Crawling
Automated tools like the Wayback Machine rely on scripts to explore links and download assets. This approach fails catastrophically on modern Single Page Applications (SPAs), where content is loaded dynamically via APIs based on complex user interactions (scrolling, clicking, logging in).
The Webrecorder Approach
Webrecorder (now developing tools under the Browsertrix moniker) flips the paradigm. Instead of sending a bot, it instruments your actual web browser.
As you naturally navigate a site—logging in, clicking through tabs, scrolling to trigger lazy loads—the Webrecorder software intercepts and records all network traffic directly into a WARC file.
High-Fidelity Replay
Because Webrecorder captures exactly what your browser requested and received, the resulting archive is vastly superior for complex apps. It captures exactly what a user saw, making it invaluable for Legal Citations of interactive dashboards or paywalled content.
Core Tools
- ArchiveWeb.page: A Chrome extension that records your browsing session directly to a local WARC file.
- ReplayWeb.page: A serverless, browser-based viewer for WARC files. It boots a service worker to intercept network requests and serve them from the WARC, providing seamless replay without Self-Hosting server infrastructure.
- Browsertrix Crawler: A highly configurable headless crawler designed to mimic user behaviors.
Webrecorder FAQ
How does this differ from Conifer?
Conifer (formerly Webrecorder.io) is a hosted service utilizing Webrecorder technologies, now maintained by Rhizome. The open-source Webrecorder project continues to develop the underlying tools.