This El Reg page.
I have been using DuckDuckGo Privacy Essentials (and their search engine as a default) and find it works well for me. This article shows an "Enhanced B" Privacy Grade and the following trackers:-
Google: googletagservices.com; google-analytics.com - Analytics: Twitter - platform.twitter.com - Microsoft: atdmt.com - Tracker network unknown: s.dpmsrv.com (Whois shows this as VeriSign Global Registry Services)
This Comments page only shows googletagservices.com; google-analytics.com; and s.dpmsrv.com
Looking at the Extension in Safari, it is described as: "DuckDuckGo Privacy Essentials" can red, modify and transmit content from all webpages. This could include sensitive information like passwords, phone numbers, and credit cards.
What, me paranoid? Certainly not! Even if I am, it does not mean that they are not after me. I always ensure that I am not logged in to any Google product (and check that I am not); funnily enough I see no targeted website and email advertising and only a very small amount of random crap. A couple of small simple text ads on a page is OK; and, If I find that I get value from a site, I do actually try and pay them...