The test version of the website on Vercel is called a Preview Deployment. It is used to test new features, design changes, and updates before making them available to everyone. It usually has a separate Vercel URL and does not affect the live website.

The live version is called the Production Deployment. This is the version that users access through the main website domain. It contains the approved and final changes that are ready for public use.

In simple terms, the test version is for checking and reviewing changes, while the live version is the official website that visitors use.

Thanks for the clear explanation. This makes the difference between Preview and Production Deployments on Vercel much easier to understand. Using Preview Deployments for testing before pushing approved changes to Production seems like a good way to reduce the risk of issues on the live website.