Proxy Anonmity Levels
Level 1: Elite - connection looks like a regular client (browser) and the server doesn't know that you are using proxy or changed your IP this also known as high anonymouse proxy.
Level 2: Anonymouse - your IP is hidden but target server could still know that you are using a proxy.
Level 3: Transparent - IP is forworded and target server can detect your real IP and knows that you are using proxy also called caching proxy used for caching only.
Proxy Server List Based on Countries
While surfing the internet your internet protocol (IP) is being logged by all website you surf. A simple web logs check will fetch the ip addresses of all persons who surfed a particular site. These rexords can be kept for decades. Your privacy is being compromised when surfing websites without a proxy.