History of Google Algorithm Updates:
Below we have compiled a full list of Google algorithm launches, updates, and refreshes that have rolled out over the years, as well as links to resources for SEO professionals who want to understand each of these changes.
What are Google Algorithms?
Google’s algorithms are a complex system used to retrieve data from its search index and instantly deliver the best possible results for a query. The search engine uses a combination of algorithms and numerous ranking factors to deliver webpages ranked by relevance on its search engine results pages (SERPs).
In its early years, Google only made a handful of updates to its algorithms. Now, Google makes thousands of changes every year.
Helpful content and Google Search results FAQ:
Google Search's core ranking systems are designed to better ensure people see original, helpful content that leaves them feeling they've had a satisfying experience. This page brings together answers to questions about how these core systems work to show helpful content in search results.
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