No clue. I figure I'm not important enough to track so I'll keep using Startpage.
I seriously think its pretty hard to beat tracking, and as I am not a danger, I don’t bother with that. I use ddgo because of the quality of the return data.
Ie, the SRA search is scrubbed of all references that are harmful to the illuminati, whereas in the ddgo return, its at the top of the page.
If you are channeling Sherlock Holmes, don’t use a slab of slate as a magnifying glass.