Websites and companies that value organic search should monitor their results for changes on a regular basis and follow the google algorithm for SEO modifications. Google has a lengthy history of well-known algorithm tweaks and alterations to its search index. Every year, Google promises to improve its search algorithm thousands of times. In the vast majority of situations, Google algorithm changes are little enough to go unnoticed. But every now and again, Google makes a change so significant that it completely changes the way we perform SEO.