mchain
9
As stated, it is a diagnostic tool: https://blog.avast.com/tag/home-network-security-it/
Avast Home Network Security scans for misconfigured Wi-Fi networks, exposes weak or default Wi-Fi passwords, vulnerable routers, compromised Internet connections, and enabled, but not protected, IPv6. It also lists all devices on the network so users can make sure only their known devices are connected.
You can search for more information on what it does here: https://duckduckgo.com/?q=avast+blog+home+network+security
I’d only visit/search links related directly to avast site or avast blog, btw. Anything else might expose you to risks.