Hi guys - I have a client who are recently experiencing a great deal of more traffic to their site. As a result, their web development agency have given them a server upgrade to cope with the new demand. One thing they have also done is put all website scripts, CSS files, images, downloadable content (such as PDFs) - onto a 3rd party server (Amazon S3). Apparently this was done so that my clients server just handles the page requests now - and all other elements are then grabbed from the Amazon s3 server. So basically, this means any HTML content and web pages are still hosted through my clients domain - but all other content is accessible through an Amazon s3 server URL. I'm wondering what SEO implications this will have for my clients domain? While all pages and HTML content is still accessible thorugh their domain name, each page is of course now making many server calls to the Amazon s3 server through external URLs (s3.amazonaws.com). I imagine this will mean any elements sitting on the Amazon S3 server can no longer contribute value to the clients SEO profile - because that actual content is not physically part of their domain anymore. However what I am more concerned about is whether all of these external server calls are going to have a negative effect on the web pages value overall. Should I be advising my client to ensure all site elements are hosted on their own server, and therefore all elements are accessible through their domain? Hope this makes sense (I'm not the best at explaining things!)