Google has released an extension for its Cheome web broweser that allows users to block sites from their web search results. Google has been exploring different algorithms to detect content farms, which are sites with shallow or low-quality content. One of the signals the company is exploring is explicit feedback from users. To that end, today the company is launching an early, experimental Chrome extension so people can block sites from their web search results. If installed, the extension also sends blocked site information to Google, and Google will study the resulting feedback and explore using it as a potential ranking signal for its search results.

The extension is available for download here, and it looks like this:



When someone blocks a site with the extension, he or she won't see results from that domain again in his/her Google search results. A blocked site can be also revoked at the bottom of the search results, so it's easy for users to to undo blocks. Users can also edit their list of blocked sites by clicking on the extension's icon in the top right of the Chrome window.

This is an early test, but the extension is available in English, French, German, Italian, Portuguese, Russian, Spanish and Turkish.