If your router is either an ASUS Merlin or DD-WRT with at least 8MB flash memory, then yes, you can install Astrill. Installation is much easier than with most VPNs as Astrill provides an applet that you can run on your router’s web interface.
If you don’t have a compatible router, you can buy an Astrill VPN router that comes pre-installed with Astrill VPN.
The benefit of having a VPN installed on a router is that it provides a secure and private connection to all devices on your network. This includes everything from your games console to your smart TV. This will become increasingly useful as we welcome more IoT devices into our homes.