Most landing pages leak conversions because founders are too close to their own copy. VibeCheck AI gives you an instant, brutally honest teardown. • Roast & Brag modes: savage critiques or hype-man validation • 5-pillar scorecard: clarity, hook, proof, and CTA • High-converting hero rewrites you can test immediately • 1v1 Arena: pit competitor landing pages head-to-head • Shareable scorecards for X and LinkedIn Paste any URL and see what visitors really think.