Next.js Performance Analyses

Browse real-world Next.js website performance analyses with AI-powered optimization recommendations.

3Analyses
69Avg Score

Recent Analyses

fiziotars.hu

Eliminate Unused JavaScript from ReCAPTCHA

69/100Dec 9, 2025
High Impact

fiziotars.hu

Optimize Unused CSS Rules

69/100Dec 9, 2025
Medium Impact

fiziotars.hu

Remove Render-Blocking CSS Resources

69/100Dec 9, 2025
High Impact

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Common Next.js Performance Issues

1

Large JavaScript bundles

Next.js sites often include heavy JavaScript that blocks rendering. Consider code splitting and lazy loading.

2

Unoptimized images

Images are typically the largest assets. Use modern formats (WebP/AVIF) and proper lazy loading.

3

Render-blocking resources

CSS and JavaScript files can delay page rendering. Defer or async load non-critical resources.

4

Third-party scripts

Analytics, ads, and social widgets add overhead. Load them after your main content.