DuckDuckGo now has four million search queries a day it has reported.
In total, the search engine, which is focussed on privacy rather than user data, reported over a billion search queries in 2013.
A huge surge of almost double DuckDuckGo's user base arose following the PRISM scandal, prior to which the search engine was averaging 1.5 million queries a day.
By November 2013 however, around four million people were making search queries on the site each day and it recently reported a figure of 4,452,957 searches in a 24-hour period.
In a blogpost discussing the success last year, it stated: "Needless to say, it was a great year for us.
"We're looking forward to similar greatness in 2014. We have a lot of big things planned for this year that we hope will address a lot of the excellent feedback you have been giving us for some time. So please stay tuned."
The search engine has always positioned itself as the anti-Google, as unlike Google and other search engines, it does not track searches for search engine marketing purposes (although it is important to note Google itself started to encrypt user data in September 2013 - perhaps too late to stop the flow of people looking for more 'private' alternatives).
DuckDuckGo also keeps searches private and does not collect IP addresses. Perhaps mostly importantly for some, it does not keep a record of previous searches. This search history can result in tailored searches not entirely relevant to the search term a browser uses. By avoiding this however, DuckDuckGo is in essence breaking away from the so called filter bubble created by other search engines.
Despite the boost in its popularity however, the volume of users searching on DuckDuckGo has a long way to go before matching the one billion searches conducted each day on Google.
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