By using our advanced proxy checker tool we can detect if you are using a proxy server or not. If we detect a proxy from your connection or given IP Address we will show proxy details including type of proxy, IP Organization etc.
The answer is No. Though we constantly update our database to detect latest proxy servers from time to time but we cannot detect all the proxy servers and results can be false-positive at some point. This does not mean if we could not detect a proxy and other also cannot detect it.