For a site tied to a major music service like Kugou, you'd expect a valid SSL certificate and clear branding. But mobilecdn.kugou.com fails on both counts. The certificate was issued for other domains entirely, which means your connection isn't secure. And while the domain has been around for over a decade, the ownership is a complete mystery — WHOIS shows no match, and there's no about page or contact info anywhere.
Legitimate streaming services typically have transparent ownership, visible legal pages, and working security certificates. This subdomain has none of those. It's currently unreachable, and even if it came back, you'd have no way to confirm it's actually maintained by Kugou. If you're wondering 'is mobilecdn.kugou.com a scam', it's impossible to say for sure with the available evidence, but the lack of security and transparency means you should treat it with extreme caution. Don't enter any personal information here, and avoid visiting it until these issues are resolved.