Drop a URL — paste it from your live site, a staging build, or any page you can read. We'll load it inside this canvas and the full review overlay (pin, draw, typed comments) works exactly as it does on a project page here.
Sites that block iframing (set X-Frame-Options or strict CSP) will show a notice with a one-click "Open via proxy" fallback. The proxy works for HTML-rendered sites; SPAs that need cookies, auth, or websockets won't work through it.