Google Broad Core Algorithm Updates: Everything you need to know - Search Engine Land

On this date in 2018, for the first time, Google confirmed a type of update that eventually came to be known as a broad core algorithm update. Google told us that for any sites impacted by these updates that there was nothing specific to “fix”. Since 2018, Google has rolled out three of these updates every year.

So what exactly are Google core updates? How do they work? When did Google roll them out? Here’s everything you need to know about Google’s broad core algorithm updates.

What is a Google broad core algorithm update?

A broad core algorithm update is a change to Google’s “core,” or overall, search ranking algorithm and systems. Google’s core algorithm is actually a collection of algorithms that interpret signals from webpages (e.g., keywords, links, etc.), with the goal of ranking the content that best answers a search query.

For example, we know that in 2015, Google incorporated Panda in its core algorithm. On Sept. 23, 2016, Google announced that Penguin became part of its core algorithm. So that means Panda and Penguin are both parts of Google’s core algorithm.

So when Google announces a core algorithm update, it could be they are tweaking an aspect of Panda, Penguin, both, or both and more. As we all know, Google reveals as little as possible about its secret formula for ranking.

In addition to its core algorithm, Google’s Gary Illyes has said that Google uses “probably millions” of baby algorithms that look at various signals. While there has been some...

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