You only need the website address. The depot does the rest.
1
Find the site you want to keep
Open the website in another tab and copy its address from the top of the browser. It will look like https://example.com.
2
Paste it below
Give it a friendly name if you like. That is the name everyone will see in the saved sites list.
3
Press Save this website
The copy starts right away and moves slowly on purpose. You can watch the page count climb in the Currently working tab.