Ghostery's Alert Bubble does not report any trackers on this Hacker News page, yet every time I reload this page, my HTTP monitor (Charles Proxy) logs a ping to ghostery.com:

  http://l.ghostery.com/api/page/?d=news.ycombinator.com%2Fitem&l=304&s=0&ua=firefox&rnd=7639974
  http://l.ghostery.com/api/page/?d=news.ycombinator.com%2Fitem&l=426&s=0&ua=firefox&rnd=5747246
  http://l.ghostery.com/api/page/?d=news.ycombinator.com%2Fitem&l=346&s=0&ua=firefox&rnd=8989043

Why does Evidon need to know about pages that have no trackers? The FAQ says the domains serving trackers will be identified, not the complete URL path (minus query string parameters) for pages that have no trackers.