Let's be straightforward: rr1---sn-vgqskn66.googlevideo.com is not a website you're meant to visit. It's a backend server subdomain belonging to Google's video infrastructure — likely used for YouTube or other Google services. The 404 error you see is expected; there's no homepage or business behind it.
If you're asking 'is rr1---sn-vgqskn66.googlevideo.com a scam,' the answer is no — it's a legitimate piece of Google's network. Security checks show a valid TLS certificate and clean reputation on blacklists. There's no risk of shopping or data loss because there's nothing here to interact with.
The lack of contact info, privacy policy, or social media is normal for this kind of technical endpoint. In short, this domain poses no trust issues — it's just a server doing what it's supposed to do.