With Branch Deploys, you can have unlimited identical environments within Netlify's build and hosting infrastructure by creating a branch in your code repository and letting Netlify know to build and serve it as well. Each branch gets a URL on an appropriately-named subdomain tracking the head of the branch, with default configurations applied for serving from identical hosting infrastructure. This feature eliminates the need to configure each environment identically or troubleshoot their differences, offering full control over branch deploys through customizable settings in the Build and Deploy section of your site's admin page.