5 Vercel Hosting Mistakes New Developers Make (And How to Avoid Them)

As a new developer, diving into Vercel for hosting can feel like a dream come true—fast deployments, serverless functions, and automatic scaling. However, many of us stumble in the early days, making mistakes that can lead to deployment errors, frustration, and wasted time. Here’s a rundown of the top five Vercel hosting mistakes I’ve seen new developers make and how to avoid them based on our experience.

1. Ignoring Build Output

What Happens:

One of the most common mistakes is overlooking the build output during deployment. Vercel provides detailed logs, but many new developers skip over them, leading to missed warnings and errors.

How to Avoid:

Always check the build logs after deployment. They can give you insights into what went wrong or what could be improved. Make it a habit to review these logs every time you deploy.

Expected Output:

You should see messages indicating successful builds or detailed error messages that guide you on what to fix.

Troubleshooting:

If you encounter an error, look for common issues like missing dependencies or incorrect environment variable configurations.

2. Not Using Environment Variables Properly

What Happens:

New developers often hard-code sensitive data, like API keys, directly into their code. This not only exposes your keys but also makes it harder to manage different environments (development, staging, production).

How to Avoid:

Utilize Vercel's environment variable feature. Define your variables in the Vercel dashboard under the "Settings" tab for your project. This keeps your keys secure and allows for easy configuration changes.

Limitations:

Keep in mind that environment variables are not available during the build phase unless explicitly configured.

3. Misunderstanding Serverless Functions

What Happens:

Vercel’s serverless functions are powerful, but new developers often misuse them, leading to performance issues and unexpected costs.

How to Avoid:

Understand the limitations and pricing of serverless functions. Vercel offers a generous free tier, but going over the limits can lead to unexpected charges. Use serverless functions for lightweight tasks and avoid heavy computations.

Pricing:

• Free tier: 125 GB-hours/month
• Pro tier: $20/month for additional resources

Our Take:

We use serverless functions for handling form submissions and lightweight API calls but avoid them for heavy data processing.

4. Overlooking Static Site Generation (SSG) Options

What Happens:

Many new developers default to using server-side rendering (SSR) without considering whether static site generation (SSG) is a better fit for their project. This can lead to slower load times and unnecessary server load.

How to Avoid:

Evaluate your project needs. If your content doesn’t change often, opt for SSG. Vercel makes it easy to generate static pages at build time, which can improve performance significantly.

Expected Output:

Static pages load faster since they are served directly from the CDN, reducing server response time.

5. Skipping CDN Configuration

What Happens:

Vercel automatically uses a CDN, but new developers often don’t take advantage of caching strategies, which can lead to slower load times for users.

How to Avoid:

Configure caching headers properly in your application. Use Vercel's built-in caching capabilities to ensure your static assets are served quickly.

What Could Go Wrong:

If caching is not configured, users might see outdated content or experience slower load times.

Conclusion

To get the most out of Vercel, avoid these common mistakes by paying attention to build outputs, managing environment variables wisely, understanding serverless functions, leveraging static site generation, and configuring CDN settings. Start by implementing these practices in your next project, and you’ll find Vercel becomes a powerful ally in your web development journey.

What We Actually Use

In our stack, we rely heavily on Vercel’s serverless functions for lightweight tasks and prefer SSG for most of our content-heavy sites. We also make sure to check our build logs diligently and manage our environment variables through Vercel’s dashboard.