Dooble partially integrates the distributed search engine YaCy
<https://en.wikipedia.org/wiki/YaCy>. IceCat could do this to - Read
about YaCy, distributed under GPLv2+
From https://en.wikipedia.org/wiki/YaCy
*YaCy* (pronounced "ya see") is a free
<https://en.wikipedia.org/wiki/Free_software> distributed search engine
<https://en.wikipedia.org/wiki/Distributed_search_engine>, built on
principles of peer-to-peer <https://en.wikipedia.org/wiki/Peer-to-peer>
(P2P) networks.^[1] <https://en.wikipedia.org/wiki/YaCy#cite_note-1>
^[2] <https://en.wikipedia.org/wiki/YaCy#cite_note-2> Its core is a
computer program <https://en.wikipedia.org/wiki/Computer_program>
written in Java
<https://en.wikipedia.org/wiki/Java_%28programming_language%29>
distributed on several hundred computers, as of September 2006,
so-called YaCy-peers. Each YaCy-peer independently crawls through the
Internet, analyzes and indexes found web pages, and stores indexing
results in a common database (so called index) which is shared with
other YaCy-peers using principles of P2P networks.
Compared to semi-distributed search engines, the YaCy-network has a
decentralised architecture. All YaCy-peers are equal and no central
server <https://en.wikipedia.org/wiki/Server_%28computing%29> exists. It
can be run either in a crawling
<https://en.wikipedia.org/wiki/Web_crawler> mode or as a local proxy
server <https://en.wikipedia.org/wiki/Proxy_server>, indexing web pages
visited by the person running YaCy on his or her computer. (Several
mechanisms are provided to protect the user's privacy.)
Access to the search functions is made by a locally running web server
which provides a search box to enter search terms, and returns search
results in a similar format to other popular search engines.
--
http://gnuzilla.gnu.org
