Google`s algorithms constitute a sophisticated system designed to retrieve information from its vast search index and promptly provide the most relevant results for a given query. This involves employing a combination of algorithms and a multitude of ranking factors to arrange webpages by their relevance on the search engine results pages (SERPs).

During its initial stages, Google implemented only a few updates to its algorithms. However, the landscape has evolved, and today, Google introduces thousands of changes each year.

The majority of these updates are subtle and go unnoticed by users. Nonetheless, there are instances when the search engine deploys major algorithmic updates that have a substantial impact on the SERPs. These significant updates can involve a rewrite or overhaul of the existing algorithms, leading to notable shifts in how webpages are ranked and displayed in search results.

These major algorithmic updates are often aimed at improving the overall quality of search results, addressing user experience concerns, and adapting to changes in online content and technology. Website owners and marketers closely monitor these updates to understand their implications and adjust their strategies to maintain or improve their visibility in Google`s search results.