How to restore iPhone bookmarks

iCloud backup doesn’t include information already stored in iCloud, like Contacts, Calendars, Bookmarks, Mail, Notes, Voice Memos, shared photos, iCloud Photos*, Health data, call history, and files you store in iCloud Drive.

*-If you had turned on iCloud Photos, your content is automatically stored in iCloud. 

Use the same Apple ID that you had earlier. You will have all bookmarks back.

Restore from where iTunes or iCloud?