According to the Site.com informational page
Site.com leverages a global network of caching servers that deliver content with fewer server hops
How can I (or can I at all) set cache times for pages in Site.com? I know that apex:page has cache="true" and expires="numberOfSeconds", which defaults to 600, when cache="true".
Can data retrievals be cached? The Salesforce Help Page: Improving Performance Using Caching under the Dynamically Retrieving and Displaying Section states that there is a property for it (see quote below), but I cannot find it on a data repeater or page. What element is it a property of?
The Cache Duration (Minutes) field in the Properties tab controls the length of time to cache retrieved data for the selected data repeater, data table, or data function.