This address is a subdomain under googlevideo.com, which is owned by Google and typically used for serving video content. But this particular hostname isn't working. When you try to visit it, you get a 404 error and an invalid SSL certificate warning. That means your browser can't establish a secure connection, and the page simply doesn't exist.
For a technical server endpoint, this is a clear misconfiguration or a leftover address that's no longer in use. It's not a scam, but it's also not a site you can actually use. If you ended up here through a link, don't trust the link — it points to a dead end. There are no reviews or history for this subdomain because it's never been a live, consumer-facing website.
Our advice: steer clear. There's nothing to see, and the broken security means you shouldn't try to interact with it. If you need video content from Google, use the main YouTube or Google domains directly.