But with so much data to sift through, how do search engines actually work? Breaking Down Search Engine Algorithms by PlatformEach search engine goes about surfacing search results in a different way. Google Search AlgorithmGoogle is the most popular search engine on the planet. As the most popular search engine around, Google more or less built the framework for how search engines look at content. Search engines will also analyze a user's search history and activity to provide more personalized results.