Every performance tool tells you what's wrong. Vigil goes further: it diagnoses root causes, predicts regressions before deploy, and generates the patches to ship.
Run a free audit →You run Lighthouse. You get a score. You open DevTools. You spend hours tracing render-blocking resources, hunting layout shifts, and rewriting code. Then you do it again next sprint.
Lighthouse says your LCP is 4.2s. Great. Now what? You still need to figure out why and write the fix yourself.
A new dependency adds 200kb. Nobody notices until Core Web Vitals tank and organic traffic drops.
You optimize, ship features, regress, optimize again. The cycle never ends because monitoring is reactive by design.
Vigil crawls your site with synthetic tests and real user data. Every route, every resource, every interaction.
AI traces each bottleneck to its root cause. Not "your LCP is slow" but "this unoptimized hero image blocks first paint on mobile."
Before you deploy, Vigil analyzes your PR for performance regressions. Catches the 200kb dependency before it ships.
Auto-generates code fixes, image optimizations, and config changes. Review and merge, or let Vigil apply them directly.
Web performance shouldn't require a dedicated team. Vigil makes fast the default, not the goal.
Try it free →