Google crash on Aug 16, 2013 took 40% of internet down

Google on August 16, 2013 faced an outage for a few minutes, following which the world's internet traffic dropped by 40%. The outage affected every service offered by Google including Google Search, YouTube, Gmail and Google Drive. The services were mostly restored one minute later, and entirely restored after four minutes. Experts estimated that the outage had cost Google $500,000.