Real tracking is more extensive than extensions show you.....
See real results via txt file attached
Bitdefender blocks Comscore Beacon and OneStat Tracker, ScriptSafe blocks <WEBBUG> (1)
Ghostery blocks TradeDesk, Avast Online Security does not block any.
Disconnect blocks Google Analytics. uMatrix blocks screencast-o-matic.com. *
http://screencast-o-matic.com links to the following External Domains:
==>twitter-badges.s3.amazonaws.com
==>platform.twitter.com
==>facebook.com & facebook tracker found.
So there is much more tracking going on under the browser hood than we learn from Bitdefender, DrWeb's, Avast,
Ghostery, Disconnect and the others. The following sites know that you have visited this page:
The following sites know that you visited this page. Click on a site to find out what more it knows about you.
-adsrvr.org
-bing.com
-bkrtx.com
-idg.nl
-leadboxer.com
-plista.com
-stepstone.nl
polonus
P.S. -sync.search.spotxchange.com and others blocked by μMatrix