Fromthe browser'sperspective, the informationappears to come fromthe samedomain, butin reality, the contentrequestismade bythe proxyon behalfof the client.
The search engines are motivated to deliver value so they need to be able to ensure high quality appropriate content for each and every search request.
If hundreds of files are required to build a web page across dozens of domains, Silk can request all of this content simultaneously with EC2, without overwhelming the mobile device processor or impacting battery life.