Casting has two meanings in media and both are commercially live. It’s broadcasting and streaming, as in casting content to a device or an audience. It’s also casting in the talent sense, the process of finding people for productions.
The streaming reading suits a distribution platform, a screen-casting product, a live broadcast service, or a media delivery infrastructure business. The .net is native for that: content delivery is network business by definition.
The talent reading suits a casting platform, a talent marketplace, or a production services company. Casting has been slow to digitise properly, and the tools available to independent producers remain poor.
Either way the name is two plain components, twelve characters, no hyphen, and immediately legible in a media context. The ambiguity resolves instantly from the site itself while widening the buyer pool.
Offers welcome.