10 Common Mistakes When Using Vercel for Your First Deployment

Deploying your first project on Vercel can feel like a rite of passage for many indie hackers and solo founders. However, it’s not uncommon to trip up along the way. In 2026, as we continue to refine our deployment practices, I want to share some common mistakes we’ve made (and seen others make) when using Vercel for the first time.

1. Ignoring Environment Variables

What It Is

Environment variables are crucial for managing sensitive information like API keys.

Mistake

Many beginners overlook setting these up, leading to failed deployments or exposing sensitive data.

Our Take

Always set up your environment variables in Vercel’s dashboard before deploying. It’s a simple step that saves you from headaches later on.

2. Skipping the Build Step

What It Is

Vercel automatically builds your project before deployment, but you need to ensure your project is configured correctly.

Mistake

Forgetting to specify the correct build command can result in a broken deployment.

Solution

Make sure your package.json has the right build script defined. For example, "build": "next build" if using Next.js.

3. Not Utilizing Preview Deployments

What It Is

Preview deployments allow you to see changes in a live environment before they go to production.

Mistake

Some developers deploy directly to production without using previews, risking broken features.

Our Take

Take advantage of Vercel’s preview deployments to test features thoroughly. It’s a lifesaver.

4. Overlooking Static Assets

What It Is

Static assets are files like images, CSS, and JavaScript that are served directly by the server.

Mistake

Failing to properly configure your static assets can lead to 404 errors.

Solution

Ensure your static files are in the right directory, and use the correct paths in your code.

5. Forgetting to Set Up Custom Domains

What It Is

Custom domains give your project a professional appearance.

Mistake

New users often stick with the default Vercel domain, missing out on branding opportunities.

Our Take

Set up a custom domain as soon as possible. It’s straightforward in Vercel’s settings.

6. Misunderstanding Serverless Functions

What It Is

Vercel supports serverless functions to handle backend logic.

Mistake

Not utilizing serverless functions effectively can lead to performance issues.

Solution

Use functions for tasks like API calls instead of handling everything on the frontend. This separation improves performance and security.

7. Lack of Monitoring and Logging

What It Is

Monitoring and logging help you track errors and performance in your application.

Mistake

Many beginners neglect to set up monitoring tools, making it hard to troubleshoot issues post-deployment.

Our Take

Integrate monitoring tools like Sentry or LogRocket to keep tabs on your app’s health. This is crucial for quick fixes.

8. Not Reading the Vercel Documentation

What It Is

Vercel has extensive documentation that covers everything from deployment to advanced configurations.

Mistake

Skipping the documentation often leads to misunderstandings about features and limitations.

Our Take

Spend some time reading through the documentation. It’s a valuable resource that can save you time and confusion.

9. Choosing the Wrong Framework

What It Is

Vercel works best with frameworks like Next.js, but it supports others too.

Mistake

Using a less compatible framework can lead to suboptimal performance.

Solution

If you’re starting fresh, consider using Next.js with Vercel for the best integration and performance.

10. Ignoring Caching Strategies

What It Is

Caching helps improve load times and reduce server load.

Mistake

Failing to implement caching can lead to slower response times and higher costs.

Our Take

Configure caching headers in your application to optimize performance. This can significantly enhance user experience.

Conclusion: Start Here

To avoid these common mistakes, I recommend starting with the official Vercel documentation and setting up a basic Next.js project. Focus on getting your environment variables right, utilizing preview deployments, and integrating monitoring tools early on.

By being mindful of these pitfalls, you can ensure a smoother deployment experience and set a solid foundation for your projects moving forward.