The report is designed to show how Safari’s is working. It lists:
The specific tracking entity (e.g., a data or advertising company) that was most active across the sites you visited. Managing the Privacy Report no.macos.safari
Choose Safari > Privacy Report from the top menu bar to see a broader summary of the trackers encountered and blocked across all sites over the last 30 days. What the Report Includes The report is designed to show how Safari’s is working
The total number of trackers Safari blocked from following you across websites. no.macos.safari
Click the Shield icon (Privacy Report) to the left of the smart search field to see a snapshot of trackers blocked on the specific page you are visiting.