Many to One

Explanation More than one application can use the same CDN configuration. Many applications are designed on a template and differ only in content but not so much design. These applications can share the same CDN configuration.
Best Practice It is most important to have specific requirements, checklists etc. of what qualifies the use of the same application. Making slight adjustments to the CDN configuration that is specific to each application can lead to other applications already using the that configuration to not work as expected. Applications based on the same template are perfect to be driven through a single CDN configuration.
Example A perfect example would be an application or website that only differed in content due to country or language.

All the domains above can share the same CDN configuration as long as the structure and the application builds are the same.