Playwright-based 'renderready' emerges as open-source replacement for defunct prerender

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The widely used prerender/prerender GitHub repository has disappeared, leaving nearly 25,000 monthly npm users with no path to security fixes or bug patches. The npm package itself still installs and runs, but the loss of the repository means no issue tracker and no resolution for a known crash-recovery flaw involving Chrome restarts. A developer has published renderready, a self-hosted prerendering server built on Playwright and headless Chromium, extracted from a production system serving over 200,000 pages daily. The tool targets client-rendered SPAs — built with React, Angular, or Vue — serving finished HTML to crawlers that do not execute JavaScript, including GPTBot, ClaudeBot, and PerplexityBot. Migration from the old prerender server requires primarily a URL change and a few renames, with only two runtime dependencies under an MIT license.

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