It's a really good search engine and I have no reason to doubt their claims about privacy and cencorship but I have to say no there because beside finding piratebay in the normal search results it's all just their claims and I don't know of any sientific study or similar that ever tested any of the claims. If you don't trust those promises self hosting SearX is probably a good option and I haven't tried it in years but Qwant is another one with their own index aka independent results.
Damn, I am quite sure it's in Debians build-essentials!