Google is constantly changing and tweaking the algorithm it uses to rank websites. While the exact number remains unknown, some experts believe that it uses hundreds of different ranking signals for this purpose. Up until now, the Mountain View company has remained silent regarding which factors hold the most influence over a site's ranking. But during a recent Q&A with Google Search Quality Senior Strategist Andrey Lipattsev, Google's top 3 ranking signals were revealed.
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Websites that implement Secure Sockets Layer (SSL) encryption will receive a slight boost to their Google search ranking. The Mountain View company announced the use of SSL as a ranking signal last summer, citing “positive results” after performing internal tests.