If you've come across edge-013.usuqo4.icloud-content.com and wondered if it's safe, the short answer is yes. This isn't a random website; it's a server used by Apple's iCloud to deliver content like photos or backups. The domain is hosted on Apple's own network, and the certificate is issued by Apple Inc. itself. There are no blacklists, malware flags, or security warnings. The site blocks automated crawlers, which is expected for an internal CDN server.
Because this is a backend service, you won't find an about page, contact info, or legal disclaimers. That's normal for this kind of infrastructure. The real question is whether you should trust the content it delivers. Since it's Apple's network, you can be confident that the files served are legitimate iCloud data. There's no reason to treat this subdomain as a scam or fake. It's just a small part of how Apple keeps your cloud files accessible.