Roast by AI vs Google Lighthouse
Lighthouse is great for performance metrics. Roast by AI adds AI-powered analysis of copy, design, UX, conversion, and trust signals that automated tools miss.
Feature Comparison
| Feature | Roast by AI | Lighthouse |
|---|---|---|
| Performance Scoring | ✓ | ✓ |
| SEO Analysis | ✓ | ✓ (basic) |
| Accessibility Audit | ✓ | ✓ |
| Copy & Content Analysis | ✓ | ✗ |
| Design/UX Scoring | ✓ | ✗ |
| Conversion Analysis | ✓ | ✗ |
| Trust Signal Analysis | ✓ | ✗ |
| Mobile-Specific Scoring | ✓ | ✓ |
| Action Board (Task Tracking) | ✓ | ✗ |
| AI Fix Prompts | ✓ | ✗ |
| REST API & Webhooks | ✓ | ✓ (CI only) |
| Version History & Deltas | ✓ | ✗ |
| Price | Free - $149/mo | Free |
Where Roast by AI Complements Lighthouse
We're not competitors - we're better together
Lighthouse tells you what's slow. We tell you what's wrong.
Lighthouse focuses on performance metrics and technical standards. Roast by AI adds the human layer - analyzing copy quality, design effectiveness, conversion elements, and trust signals that automated tools can't evaluate.
From metrics to action
Lighthouse gives you a score and a list of generic recommendations. Roast by AI turns every finding into a trackable task on your Action Board, with AI-generated fix prompts you can paste directly into your AI assistant.
Track progress over time
Lighthouse runs are stateless - each run is independent. Roast by AI maintains version history with score deltas, so you can see exactly how your improvements have impacted each category over time.
Frequently Asked Questions
- Should I use Roast by AI instead of Lighthouse?
- Use both. Lighthouse is excellent for deep performance analysis. Roast by AI adds the broader perspective - copy, design, UX, conversions, and trust signals - that Lighthouse doesn't cover.
- Do you use Lighthouse data?
- We integrate Google PageSpeed Insights data (which is powered by Lighthouse) as part of our performance analysis, then layer AI analysis on top.
- Is Roast by AI free like Lighthouse?
- We offer 3 free roasts per month. For more, plans start at $19/month. Unlike Lighthouse, we provide 8 scoring categories, task tracking, and AI fix prompts.
Ready to get roasted?
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