key

The value of `Key` depends on the operation that you want to perform: + Add a tag to a health check or hosted zone: `Key` is the name that you want to give the new tag. + Edit a tag: `Key` is the name of the tag that you want to change the `Value` for. + Delete a key: `Key` is the name of the tag you want to remove. + Give a name to a health check: Edit the default `Name` tag. In the Amazon Route 53 console, the list of your health checks includes a Name column that lets you see the name that you've given to each health check.