By default, redirects apply to any hostname used to access the website. Available options are:

- `Any hostname` to match all hostnames.
- `Selected hostname` to choose one detected website hostname.
- `Specify hostname or pattern` to type a custom value.

When using custom input:

- Plain hostnames (like `www.example.com`) are matched exactly.
- Custom patterns must be regular expressions (for example `^mail[0-9]+\.example\.com$`).