FAROO is a universal web search engine based on peer-to-peer technology. It uses a distributed crawler that stores search data on users' computers instead of a central server. Whenever a user visits a website, it is automatically indexed and distributed to the network. Ranking is done by comparing usage statistics of users, such as web pages visited, amount of time spent on each page, and whether the pages were bookmarked or printed.
- FAROO takes user behavior into account when calculating a website's rank, resulting in more relevant search results than traditional search engines can provide (see filter bubble).
- Because pages are automatically indexed upon being visited, updates to the index are nearly instant.
- The nature of the service could allow easy manipulation by spammers, although FAROO claims that their algorithms prevent this.