benchmark

Detect performance regressions across pull requests and branches by comparing current page load times, Core Web Vitals, and bundle sizes against historical baselines to automatically surface regressions.

Performance baseline tracking for web applications is the process of capturing initial page timing data, resource sizes, and bundle metrics to establish a reference point. This baseline is stored to detect future regressions and analyze performance trends over time.

Establish a baseline for Core Web Vitals and page load times by running a full performance audit on a running page URL. The tool captures and records the timing data and resource sizes under .gstack/benchmark-reports for future comparisons.

Yes, you can track bundle size and page load trends over time for canaries. The tool applies measurements across PRs, diffs, and canaries, persisting results under .gstack/benchmark-reports to generate historical trends and alert when thresholds are exceeded.

No, this benchmarking tool requires no external dependencies to monitor web vitals. It operates independently to measure performance on running pages, establish baselines, and generate alerts without relying on external integrations.