[apex]

Recently I began proxy chaining. Prior to chaining two proxies I would use ONE ELITE SOCKS5 proxy. I had a website which worked fine till I started chaining proxies. I have not returned to old method on the website (don't want to kill more profiles..)
//QUESTION: Does anyone know of some kind of detection system for proxy chaining. I am not sure whether the site is dead or detects the chain somehow? Anyone heard of this kind of behavior on other websites?