Tor suggests: https://search.disconnect.me
I've read their privacy policy which stills seems not secure, because it
stores data:
Nothing in this policy contradicts the following statements:
We don’t collect any of your personal info, including your IP address,
other than information you voluntarily provide.
We don’t sell your personal info to advertisers or other third parties.
We share your personal info only when legally required, or when
reasonably necessary to prevent harm in an emergency situation.
We retain your personal info, excluding info you make public, for no more
than 30 days after you request deletion.
I also like Startpage & Ixquick for their Proxy feature but they are
propietary...
Duckduckgo.com/html seems to be the safest one... but, I've noticed Noscript
has found that in the Javascript code there is something linked to Yahoo... I
can't find it now, but as soon as I find it, I'll upload it here...
Also, it may be because of this: "Some of DuckDuckGo's source code is free
software hosted at GitHub under the Apache 2.0 License,[9] but the core is
proprietary. On 21 May 2014, DuckDuckGo launched a redesigned version that
focused on smarter answers and a more refined look. The new version added
often requested features such as images, local search, auto-suggest and more"
https://en.wikipedia.org/wiki/DuckDuckGo
