Arvixe deploys multiple levels of caching in order to ensure your websites loading speeds are as fast as possible and to ensure that our server loads remain low and uptime reliable. On our Linux servers, we make use of the "Varnish" caching engine which sets in front of Apache, capturing requests in a precompiled state and serving them from memory. In the event that your website is being cached which all websites by default are with minor exclusions, it will be held for 60 seconds. Your website can be opted out of caching at the expense that performance may not be as good because your website will no longer be cached in a precompiled state and served from memory. If you wish to have your website removed from caching because you are having issues with it, please submit a ticket from http://support.arvixe.com