The Site Factory Management Console sites, site collections, and groups pages display thumbnail images of the front pages of your websites to make it easier to identify the websites you want to work with. If the content of a website has changed, the thumbnail image may become out of date. If you want to update the thumbnail image, you can refresh it to show the current front page content by clearing the caches for the website. Be aware, however, that clearing a website’s caches can have a negative effect on its performance and if your website is receiving a significant amount of traffic, the effect can be severe.