Suggestions: Show suggested websites found in Messages, Mail and other apps. Choose Frequently Visited, Shared with You, or both.
Frequently Visited: Show websites you’ve visited often or recently.
Shared with You: Show videos, news stories and other links that friends shared with you using the Messages app.
To see items in Shared with You, make sure Safari is selected in the Shared with You pane of Messages settings. You only see items shared with you by people who are in your contacts in the Contacts app.
Background Image: You can choose a provided image, or choose one of your photos (the first option on the left). If the first option shows View your Favourites.