Change Privacy preferences in Safari on Mac
In the Safari app on your Mac, use Privacy preferences to remove and block data that websites can use to track you in Safari. To change these preferences, choose Safari > Preferences, then click Privacy.
Prevent cross-site tracking
Some websites use third-party content providers. A third-party content provider can track you across websites to advertise products and services.
With this option turned on, tracking data is periodically deleted unless you visit the third-party content provider.
For a Privacy Report that shows who’s been blocked from tracking you, see See who was blocked from tracking you.
Block all cookies
Don’t let any websites, third parties, or advertisers store cookies and other data on your Mac. This may prevent some websites from working properly.
Manage Website Data: See which websites store cookies and other information on your Mac. Remove cookies and website data for individual websites or all of them.
Allow websites to check for Apple Pay and Apple Card
When you visit a website that uses Apple Pay, the website can check if you have Apple Pay enabled on that device. If you’re using a Mac to which a card cannot be added, the website can check if you have Apple Pay set up on an iPhone or Apple Watch. Apple websites and apps can also check to see if you have Apple Card. You can stop websites you visit from checking if Apple Pay is enabled or Apple websites from checking if you have Apple Card on your Mac at any time by going to Safari > Preferences > Privacy and deselecting “Allow websites to check for Apple Pay and Apple Card.”
This option appears if you have either a:
If you allow websites to check if Apple Pay is set up, one of two things can happen:
Allow privacy-preserving measurement of ad effectiveness
Let advertisers measure how they’re doing without associating ad activity with you.