[{"data":1,"prerenderedAt":198},["ShallowReactive",2],{"blog-launch/v0-app":3},{"id":4,"title":5,"body":6,"category":176,"date":177,"dateModified":177,"description":178,"draft":179,"extension":180,"faq":181,"featured":179,"headerVariant":184,"image":185,"keywords":185,"meta":186,"navigation":187,"ogDescription":188,"ogTitle":185,"path":189,"readTime":185,"schemaOrg":190,"schemaType":191,"seo":192,"sitemap":193,"stem":194,"tags":195,"twitterCard":196,"__hash__":197},"blog/blog/launch/v0-app.md","v0 Component Launch Security Checklist: 14 Items Before Going Live",{"type":7,"value":8,"toc":168},"minimark",[9,19,22,25,45,64,80,95,100,103,106,128,133,136,139],[10,11,12,16],"tldr",{},[13,14,15],"p",{},"TL;DR",[13,17,18],{},"v0 generates React/Next.js components that need integration work before production. Replace all placeholder data, add server-side validation, verify authentication is implemented correctly, and ensure any API calls use secure endpoints. The UI is ready, but the security layer is your job.",[20,21],"print-button",{},[13,23,24],{},"v0 by Vercel generates beautiful React components and page layouts. Since it focuses on UI, the generated code often uses placeholder data and mock functions. Before launching, you need to replace these with secure, production-ready implementations.",[26,27,30,33,38,42],"checklist-section",{"count":28,"title":29},"4","Replace Placeholder Code",[13,31,32],{},"::checklist-item{label=\"Remove all mock/placeholder data\" description=\"Search for \"placeholder\", \"mock\", \"dummy\", \"example\" and replace with real data sources\"}\n::",[34,35],"checklist-item",{"description":36,"label":37},"v0 may include debug logs. Remove or replace with proper logging.","Replace console.log statements",[34,39],{"description":40,"label":41},"Forms may have stub onSubmit handlers. Add real validation and submission.","Implement real form handlers",[13,43,44],{},"::checklist-item{label=\"Connect to real API endpoints\" description=\"Replace any fetch(\"/api/example\") calls with actual backend endpoints\"}\n::",[26,46,48,52,56,60],{"count":28,"title":47},"Input and Data Security",[34,49],{"description":50,"label":51},"Client validation can be bypassed. All inputs must validate on the server.","Add server-side input validation",[34,53],{"description":54,"label":55},"If used, ensure content is sanitized. This bypasses React's XSS protection.","Check for dangerouslySetInnerHTML",[34,57],{"description":58,"label":59},"Validate types, limit sizes, and scan uploads if the component handles files","Verify file upload handling (if applicable)",[34,61],{"description":62,"label":63},"Enter \u003Cscript> tags and SQL injection strings in all form fields","Test with malicious input",[26,65,68,72,76],{"count":66,"title":67},"3","Authentication (If Required)",[34,69],{"description":70,"label":71},"v0 doesn't add auth by default. Implement using NextAuth, Clerk, or similar.","Add authentication to protected components",[34,73],{"description":74,"label":75},"Any API routes you add need authentication middleware","Protect API routes",[34,77],{"description":78,"label":79},"Try accessing protected routes directly without logging in","Test unauthorized access",[26,81,83,87,91],{"count":66,"title":82},"Deployment Security",[34,84],{"description":85,"label":86},"Check for any sk_, pk_, api_key, or password strings in the code","Search for hardcoded API keys",[34,88],{"description":89,"label":90},"Any API keys should be in Vercel environment settings, not code","Set environment variables in Vercel",[34,92],{"description":93,"label":94},"Vercel handles this, but confirm http:// redirects to https://","Verify HTTPS is working",[96,97,99],"h2",{"id":98},"understanding-v0s-output","Understanding v0's Output",[13,101,102],{},"v0 is a UI generation tool, not a full-stack application builder. It creates components with React and Tailwind CSS that look great and have basic interactivity, but they're designed to be integrated into a larger application.",[13,104,105],{},"This means security features like authentication, authorization, and input validation are typically not included. The generated code is a starting point for the visual layer, with the expectation that you'll add the backend and security layer yourself.",[107,108,109,116,122],"faq-section",{},[110,111,113],"faq-item",{"question":112},"Is v0 generated code secure?",[13,114,115],{},"v0 generates React components that are generally safe from XSS because React escapes output by default. However, v0 code often uses placeholder data and mock functions that need to be replaced with secure implementations before production use.",[110,117,119],{"question":118},"What should I check before using v0 components in production?",[13,120,121],{},"Replace all placeholder data with real implementations, add proper authentication if needed, validate any user inputs on the server side, ensure API calls use secure endpoints, and verify no hardcoded credentials exist in the generated code.",[110,123,125],{"question":124},"Does v0 add authentication automatically?",[13,126,127],{},"No, v0 focuses on UI components and doesn't include authentication. You'll need to add authentication using a service like NextAuth.js, Clerk, or Auth0 if your application requires protected routes.",[129,130,132],"h3",{"id":131},"scan-your-v0-project","Scan Your v0 Project",[13,134,135],{},"Find security issues in your v0 code before they become problems.",[13,137,138],{},"Start Free Scan",[140,141,142,148,153,158,163],"related-articles",{},[143,144],"related-card",{"description":145,"href":146,"title":147},"Pre-launch security checklist for Railway deployments. 14 essential items covering environment variables, database secur","/blog/launch/railway-deployment","Railway Deployment Launch Security Checklist: 14 Items Before Going Live",[143,149],{"description":150,"href":151,"title":152},"Pre-launch security checklist for React applications. 15 essential items covering client-side security, API integration,","/blog/launch/react-app","React App Launch Security Checklist: 15 Items Before Going Live",[143,154],{"description":155,"href":156,"title":157},"Pre-launch security checklist for Replit apps. 15 critical items to verify before deploying your Replit project to produ","/blog/launch/replit-app","Replit App Launch Security Checklist: 15 Items Before Going Live",[143,159],{"description":160,"href":161,"title":162},"Security checklist for public API launches. 16 essential items to verify before opening your API to external developers,","/blog/launch/api-public-launch","API Public Launch Security Checklist: 16 Items Before Opening Your API",[143,164],{"description":165,"href":166,"title":167},"Security checklist for beta launches. 14 essential items to verify before inviting your first beta users, including data","/blog/launch/beta-launch","Beta Launch Security Checklist: 14 Items Before Inviting Beta Users",{"title":169,"searchDepth":170,"depth":170,"links":171},"",2,[172],{"id":98,"depth":170,"text":99,"children":173},[174],{"id":131,"depth":175,"text":132},3,"launch","2026-02-17","Pre-launch security checklist for v0 by Vercel generated components. 14 critical items to verify before deploying v0 code to production.",false,"md",[182,183],{"question":112,"answer":115},{"question":118,"answer":121},"orange",null,{},true,"Pre-launch security checklist for v0 components. 14 critical items before deploying.","/blog/launch/v0-app","[object Object]","Article",{"title":5,"description":178},{"loc":189},"blog/launch/v0-app",[],"summary_large_image","QNpY2igcCNQOFA38xnB0ryHlupOkkjzjltfyLp21Q7A",1775843935511]