Deploy Beginner
Git Push Not Triggering a Vercel Deploy: 9 Checks, in Order
Pushed to GitHub and Vercel did nothing? No deploy, no error. These 9 checks find the cause, starting with whether the Vercel Bot left a comment.
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Get your app off localhost: hosting, domains, HTTPS, databases, and fixing deploy errors.
Deploy Beginner
Netlify Build Failed: What Exit Code 2 Actually Means (3 Fixes)
'Build script returned non-zero exit code: 2' on Netlify isn't the real error. Here are the 3 causes behind it, ranked, with the exact fix for each.
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Cloudflare Pages Environment Variables Not Working (5 Fixes)
Variable set in Cloudflare Pages but your build still reads undefined? Five ranked causes, including the one where secrets simply don't exist at build time.
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Application Error: a Client-Side Exception on Vercel (4 Fixes)
Page goes blank with 'a client-side exception has occurred' on Vercel? Four ranked causes: env vars, hydration, stale chunks, missing error boundary.
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CORS Error on Vercel: Add the Right Header
"Blocked by CORS policy" after deploying to Vercel? What the error means, and the exact place to add the header: vercel.json, next.config, or your route.
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404 on Refresh: Fix SPA Routing on Vercel, Netlify & CF Pages
Refresh a deep link and get a 404 though your homepage works? Client-side routing on static hosts — exact fixes for Vercel, Netlify, and Cloudflare Pages.
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Environment Variables on Vercel: Where API Keys Live
Where do your API keys actually go on Vercel? How to add environment variables, why they stay undefined until you redeploy, and the prefix that leaks keys.
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Vercel Domain Not Secure? SSL & Redirect Loop Fixes
Diagnose Vercel custom-domain HTTPS failures by symptom: DNS verification, certificate issuance, Cloudflare SSL mode, redirects, and mixed content.
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Vercel Build Failed? 5 Causes Matched to Your Error Log
Match a failed Vercel build to its first error: dependency install, Node version, TypeScript, output settings, or resource limits.
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Transfer a Domain to Vercel or Just Change DNS?
Separate registrar transfers from DNS changes. Preserve email records, check transfer eligibility, and connect a Vercel domain using dashboard values.
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Module Not Found on Vercel (Works Locally): 5 Causes & Fixes
Module not found on Vercel but works locally? The build server isn't your laptop. The 5 real causes — case mismatches, Git traps, missing deps — and fixes.
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Do I Need to Buy an SSL Certificate? No — and Here's Why (2026)
Do I need to buy an SSL certificate? No. Modern hosts issue free SSL automatically. Here's where free certs come from, and when paid ones actually matter.
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How to Buy a Domain and Set Up DNS for the First Time (2026)
How to buy a domain and set up DNS for the first time: fair .com prices in 2026, the DNS records that actually matter, and the beginner mistakes to avoid.
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Vercel Custom Domain Setup: Namecheap & Cloudflare Records
Vercel custom domain setup for Namecheap & Cloudflare: the exact DNS records (A + CNAME), auto SSL, www vs apex, and the mistakes that break verification.
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Vercel vs Netlify vs Cloudflare Pages: Deployment Checklist
Compare hosting by output type, runtime compatibility, commercial terms, and billing. Includes a migration checklist for static Astro sites.
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Deploy Your First App to Vercel (No DevOps Experience)
You built an app with AI. Here's how to get it off your laptop and onto the internet with Vercel — step by step, no prior deployment experience required.
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