Unable to route 100% traffic to non-master branch in split testing

[fool]

You cannot change the redirects after a site deploy; you’d deploy the different redirects while you deploy.

You could certainly change your production branch to a maintenance branch, and then create a 100% split test to it. But split testing is as Hrishikesh suggested a bit of an odd way to handle this, since it is a service in beta and has many caveats including around changing production branch on your site, so just publishing a different deploy is probably the most straightforward way to do this:

[Support Guide] What’s the easiest way to create a temporary “maintenance page” for my site?

Last Reviewed by Netlify Support Staff: December 2022 So you need to take your site offline for maintenance. Netlify enables a great workflow for this! We suggest using a either a manual deploy (aka Drag and drop) or a special maintenance branch in your repository so you don’t have to do any heavy lifts like remove all files from your normal production branch in case you use our continuous deployment system. To use either of those paths, you’ll start by creating some static HTML that displays …