CLI that reports per-route JS/CSS bundle weight against budgets, flags heavy third-party packages, and suggests code-splitting boundaries — from a built dir or a webpack stats.json. Guides on frontend-performance.com.
CLI + GitHub Action that crawls a deployed page and audits caching headers (immutable hashed assets, Cache-Control, ETags, CDN hints), flagging misconfigurations. Explainers on frontend-performance.com.
Fast, browserless CLI that audits a URL's HTML and response headers for common frontend performance issues. Findings link to explainers on frontend-performance.com.
Browser overlay (MV3 extension + bookmarklet) that highlights the LCP element, render-blocking resources, and long tasks on any page, with a fix tip and deep-link for each finding. Docs on frontend-performance.com.
CI gate that checks Core Web Vitals against a performance budget and fails the build on regressions, diffing against a saved baseline. Findings link to explainers on frontend-performance.com.