We have <meta name="referrer" content="origin"> in the header. So the search terms are not broadcast. I mean it is a bunch of tradeoffs. We lean more towards speed and low costs. DDG for example may be even more private, but it is slower and needs a bunch of ads to pay for the higher server costs.

Generally Swurl is super private compared to visiting 99% of all other websites out there. But please let me know if there is anything you think I should add/change to make it more private for you, without hurting speed and costs.