You might already have it. Physical Web content is all presented in the form of a Web page (URL). As such, a Physical Web beacon can point to an existing URL, or even deep link to content in an app.
If the content you need does not already exist, it’s inexpensive to create and manage with the thousands of existing tools and platforms for Web page creation and management.
One important thing to note about those websites: Physical Web browsers commonly display meta-content from the destination URL, therefore it is important that the messages in the metadata within the code of the page, are applicable to the content you’re promoting on the Physical Web. The site’s favicon is also a useful visual cue for visitors. Newer browsers are starting to incorporate Structured Data into their markup to make end-user previews more informative.