The domain rr3---sn-pjx-nwvs.googlevideo.com isn't a typical website you'd visit or buy from. It's part of Google's content delivery network, specifically used for serving video content through Google services like YouTube. The page you land on is a standard 404 error, meaning the path you requested doesn't exist on that server — that's normal for a CDN endpoint.
Because this is Google infrastructure, signals like missing contact pages, no privacy policy, and no social media presence aren't red flags. They're expected for a server that doesn't conduct business with the public. The SSL certificate is valid, the domain is clearly owned by Google, and there are no malware or blacklist warnings.
If you're doing a safety check on rr3---sn-pjx-nwvs.googlevideo.com, the short answer is that this is a legitimate Google server, not a fake or risky site. There's nothing to buy, log into, or share — so the trust question doesn't really apply the same way it would for a store or service. Think of it as a back-end part of YouTube's infrastructure.