A typical Rammerhead link looks like this: https://[random-subdomain].[domain-name].com/[random-string]/index.html
Developers who maintain Rammerhead instances often post their "official" list on GitHub under Gists. Search for rammerhead-proxy-list.json on GitHub. These are usually updated via automated scripts. rammerhead proxy list link
Rammerhead is not a standard HTTP or SOCKS proxy. It is an open-source designed specifically to bypass complex website restrictions, including those that use anti-proxy JavaScript detection. rammerhead proxy list link