We do not provide any hosting services or web space at all.

When you purchase Juicebox-Pro, we provide the installation file for JuiceboxBuilder-Pro (a desktop application to create and edit Juicebox-Pro galleries on your computer), the Juicebox-Pro plugin for Lightroom (a web engine to create Juicebox-Pro galleries within Adobe Lightroom) and the Juicebox-Pro files (to create Juicebox-Pro galleries manually if you like).

Once you have created a gallery on your computer, you would need to upload it to a web server somewhere so that the gallery is publicly visible on the internet.
We do not provide any hosting services but there are many web hosts that offer free web space which would be suitable for hosting Juicebox galleries. (Juicebox galleries do not require any special web server requirements, with the exception of Password Protection and the Download Button which require PHP 5.2.0 or later. Please see here for details.)
Try a web search with terms such as 'free web hosting' but please bear in mind that with a free hosting account, you may get little or no support, less reliability (more server down-time) and fewer features.

I hope these notes help to clarify things for you.
Please let me know if you have any further queries and I'll do my best to help you out.