This feature is powered by another project we run, where we measure the tracking landscape in the web (most popular domains): https://whotracks.me. Details on how that works can be found in our paper [0]. Also - we are flirting with the idea of providing a mode where the ranking is informed by the trackers in the destination site. Would love to hear your thoughts on whether you'd like smth like this.
> 2) Page previews (I'm not sure about whether I like that)
At the moment it's only a placeholder for a lengthier title and description (if available), but we are planning to use the space for rendering a short summary of the content/media in that site + similar sites in terms of content (query-relevant of course). This is more work in progress as we want to make sure content creators are on board. Again: would love to hear your thoughts on that.
Disclaimer: I work at Cliqz.
[0] WhoTracks .Me: Shedding light on the opaque world of online tracking - https://arxiv.org/abs/1804.08959