The zero-config Vercel & GitHub integration that automatically guards your Core Web Vitals, prevents heavy JavaScript leaks, and protects your SEO rankings.
| Metric | Size |
|---|---|
| Base Branch | 666.51 KB |
| This PR | 978.85 KB |
| Difference | +312.34 KB |
**Performance Regression Detected (Exceeded Threshold)!**
*Analyzed via NextPerf SaaS Bot*
Zero complex CI/CD setup. Plug into your infrastructure in under a minute.
Instantly intercepts production and preview deployments without bloating your build pipeline scripts.
Drop a simple .nextperf.json config file in your repo to stop noise and alert fatigue.
Cryptographically signed JWT GitHub App authentication posts clean reports under your dedicated bot name.
One regression prevented pays for a year of subscription.
.nextperf.json limitsEverything you need to know about automated bundle regression detection.
@next/bundle-analyzer?While @next/bundle-analyzer is a manual local tool that requires a developer to run builds and inspect massive HTML treemaps, NextPerf completely automates the process. It intercepts Vercel webhooks and posts a clean size diff report directly to your GitHub Pull Requests before code merges—saving your team from manual checks and alert fatigue.
You can define a .nextperf.json file in the root directory of your repository. Specify a warningThresholdKB value (for example, 50 KB), and NextPerf will only flag true regressions that exceed your custom limit.
No. NextPerf plugs directly into Vercel deployment webhooks and uses a secure GitHub App integration. You don't need to bloat your GitHub Actions YAML files or modify complex build scripts.