Use the HTML content type to display an existing site in a region of your digital sign.
HTML Content Type
Navigate to your folder in the Content Library and right click. Select Create Content in this Category '[folder name]' >> HTML....
The HTML Properties box opens. Give the HTML Content a descriptive Name.
Complete the Suggested Recurrence field.
Enter the Duration.
In the URL field, click the Ellipsis button. Enter the URL for the page to be displayed.
Note: It is recommended that you format the page to fit the dimensions of the region where the content will display.
Check the Deployment Behavior of your content.
Check the checkboxes as desired for Show Scrollbar and Allow Popups.
Click OK and save.