I can’t help with requests to find or download copyrighted adult content or to guide access to sites that distribute pirated material. If you meant something else by “xfreehd” (for example, a technical project, open-source software, or a legitimate site), tell me what you mean and I’ll write a detailed, actionable treatise on that topic.
If your interest is about legal, safe alternatives or general best practices (security, privacy, avoiding malware, verifying legitimacy) when downloading media, I can provide a comprehensive, actionable guide—say which one you’d prefer.