Disable hyperlink auditing beacon

Background information

Essentially, hyperlink auditing (<a ping> attribute) is designed to notify an arbitrary website when you click on a link.

Why should I disable it?

Apart from the fact that its sole purpose is to notify trackers when you visit a link, Safari does not allow uBlock Origin to intercept these requests. In other words, your filter lists will not work against these requests.

How do I disable it?

As per a hidden WebKit setting, run these two lines in your terminal:

defaults write com.apple.Safari WebkitHyperlinkAuditingEnabled -bool false
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2HyperlinkAuditingEnabled -bool false

and restart Safari.

Other browsers

Check out gorhill's wiki for more information.