Looking at the paragraph right above that one, it says:
> It provides basic privacy by mixing your queries with searches on other platforms without storing search data. Queries are made using a POST request on every browser (except chrome*). Therefore they show up in neither our logs, nor your url history.
As for other info, it doesn't seem to say. However, considering that it focuses on privacy, and unlike similar services (cough cough DuckDuckGo) it's free software, I'm going to trust it and most likely use it in close future.
