You can embed multimedia in a website via two different methods, depending on whether or not the website is behind an authentication wall.
If your students do not need to login to view the webpage:
You can use a hyperlink or embed code with your proxy prefix included. This will require students to log into the school proxy before they can view the Credo content.
If students must login to view the webpage:
You can use a Referring URL. Contact Credo Support to set up your website URL as a referring URL. As long as students access the multimedia link or embed code from within that website, they will automatically be authenticated into the Credo content.