[Trisquel-users] Re : How do I find out which "mixed" licenses DuckDuckGo is running under in GNUIceCat?

[lcerf]

You do not run a search engine. You only query it and read the results it  
outputs. The one who deserves the control of the search engine is who owns  
it: Surfboard Holdings B.V. (in case of Ixquick and Startpage) and  
DuckDuckGo, Inc. If they only run free software or software they wrote  
themselves, then good for them. That does not make much of a difference to  
you.

And using search engine neither is not SaaS  
(https://www.gnu.org/philosophy/who-does-that-server-really-serve.html):
Services such as search engines collect data from around the web and let you  
examine it. Looking through their collection of data isn't your own computing  
in the usual sense—you didn't provide that collection—so using such a  
service to search the web is not SaaSS.