You should enable “Do not track” functionality in Safari. When activated, Safari sends a “Do not track” field in the http-header (DNT: 1) when loading a web page. If the website follows this rule, it should not do any tracking, but there is no guarantee.
How to fix it
macOS 10.11 – 10.14
- Open Safari > “Preferences” > “Privacy”
- Enable “Ask websites not to track me”
This option does not exists anymore (macOS 10.14.4+).

