You are buying a desktop and web license.
Desktop license provides for the installation and the employment of fonts from 1 to 5 users (users mean the number of computers on which you can install the font family).
Web license allows a maximum of 10,000 visits per month and provides to incorporate the typeface in more websites on the condition that they belongs to the only owner of the license.
The content is for your own personal use provided that you do not (and do not allow any third party to) copy, modify, create a derivative work.
If you need a specific license or assistance please contact me.