View source for Monitoring my Home Network Traffic

I need the ability to monitor the traffic at some basic level at home.

I have two children that have access to the Internet and I'd like to know what they are looking at.

[https://www.google.com/search?q=Looking+for+a+way+to+record+all+the+URL+requested+on+my+home+network&oq=Looking+for+a+way+to+record+all+the+URL+requested+on+my+home+network&aqs=chrome..69i57.17903j0j7&sourceid=chrome&es_sm=93&ie=UTF-8 How can I monitor at least the Web Pages that my Children are visiting on my Home Network?]