On April 21, 2015, Google launched a mobile-friendly ranking algorithm, termed 'mobilegeddon,' anticipated to significantly influence search results more than previous updates like Panda or Penguin. Despite various reports indicating that a considerable number of major websites, including Fortune 500 companies, were not prepared for this change, it was observed that the algorithm's overall impact might be less severe than expected. The update aimed to enhance search experience for mobile users, but maintaining optimization across all devices remained crucial.