If you've come across rr4---sn-in2pq-jb3l.googlevideo.com in a browser and saw a 404 error, you might have wondered if it's a scam. The short answer is no. This domain is part of Google's googlevideo.com network, which is used behind the scenes to stream YouTube videos. It's not a website designed for you to visit directly that's why it returns a "Not Found" page. When you watch a YouTube video, your device automatically connects to addresses like this one to fetch the video data.
For a link that's not meant to be a consumer destination, missing contact info and legal pages are entirely normal. Google's own privacy and security standards apply. There are no signs of phishing, malware, or blacklisting. So if you see this URL in your network logs or a video embed, there's no need to panic. It's just YouTube doing its job. The only thing to note is that you shouldn't treat this URL as a website to browse it's a machine-to-machine endpoint. As far as safety goes, you can trust that it's part of Google's infrastructure.