To access blocked sites, all you need is go to one of the listed sites, enter the URL for the blocked site you want to unblock, and their service will retrieve the site for you. Aproxy will help find the proxies that have not yet been detected and blocked by the internet filters that are blocking you, it can help you unblock websites and access any site you want! With no software to download or install. A proxy is a computer server or software that acts as a facilitator or middleman of traffic between your computer and a connection point. Using a proxy when you access a webpage your computer transmits a request to the server and waits for a response from it.