Editing the Hosts file can block websites. If you want to dig deep into the settings for your computer, both Windows and macOS have what’s called a Hosts file.

If you want to block the Roblox website or app, or prevent Roblox from being downloaded on your Windows 11/10 computer, see this post.

Although Chrome doesn't have a built-in option to block websites, there are a few ways to eliminate distractions.