What site owners should know about Google's core updates  |  Google Search Central Blog  |  Google Developers

What site owners should know about Google's core updates  |  Google Search Central Blog  |  Google Developers

Each day, Google usually releases one or more changes designed to improve our search results. Most aren't noticeable but help us incrementally continue to improve.

Sometimes, an update may be more noticeable. We aim to confirm such updates when we feel there is actionable information that site owners, content producers or others might take in relation to them. For example, when our "Speed Update" happened, we gave months of advanced notice and advice.

Several times a year, we make significant, broad changes to our search algorithms and systems. We refer to these as "core updates." They're designed to ensure that overall, we're delivering on our mission to present relevant and authoritative content to searchers. These core updates may also affect Google Discover.

We confirm broad core updates because they typically produce some widely notable effects. Some sites may note drops or gains during them. We know those with sites that experience drops will be looking for a fix, and we want to ensure they don't try to fix the wrong things. Moreover, there might not be anything to fix at all.

There's nothing wrong with pages that may perform less well in a core update. They haven't violated our webmaster guidelines nor been subjected to a manual or algorithmic action, as can happen to pages that do violate those guidelines. In fact, there's nothing in a core update that targets specific pages or sites. Instead, the changes are about improving how our systems assess content overall. These changes may cause some pages that were previously under-rewarded to do better.

One way to think of how a core update operates is to imagine you made a list of the top 100 movies in 2015. A few years later in 2019, you refresh the list. It's going to naturally change. Some new and wonderful movies that never existed before will now be candidates for inclusion. You might also reassess some films and realize they deserved a higher place on the list than they had before.

The list will change, and films previously higher on the list that move down aren't bad. There are simply more deserving films that are coming before them.

As explained, pages that drop after a core update don't have anything wrong to fix. This said, we understand those who do less well after a core update change may still feel they need to do something. We suggest focusing on ensuring you're offering the best content you can. That's what our algorithms seek to reward.

A starting point is to revisit the advice we've offered in the past on how to self-assess if you believe you're offering quality content. We've updated that advice with a fresh set of questions to ask yourself about your content:

Beyond asking yourself these questions, consider having others you trust but who are unaffiliated with your site provide an honest assessment.

Also consider an audit of the drops you may have experienced. What pages were most impacted and for what types of searches? Look closely at these to understand how they're assessed against some of the questions above.

Another resource for advice on great content is to review our search quality rater guidelines. Raters are people who give us insights on if our algorithms seem to be providing good results, a way to help confirm our changes are working well.

It's important to understand that search raters have no control over how pages rank. Rater data is not used directly in our ranking algorithms. Rather, we use them as a restaurant might get feedback cards from diners. The feedback helps us know if our systems seem to be working.

If you understand how raters learn to assess good content, that might help you improve your own content. In turn, you might perhaps do better in Search.

In particular, raters are trained to understand if content has what we call strong E-A-T. That stands for Expertise, Authoritativeness and Trustworthiness. Reading the guidelines may help you assess how your content is doing from an E-A-T perspective and improvements to consider.

Here are a few articles written by third-parties who share how they've used the guidelines as advice to follow:

Links to the articles above are not endorsements of any particular SEO companies or services, nor an endorsement of any general SEO advice given by them. We simply found the articles themselves to be helpful starting points for those who want to conceptualize how to assess their content in terms of E-A-T criteria.

A common question after a core update is how long does it take for a site to recover, if it improves content?

Broad core updates tend to happen every few months. Content that was impacted by one might not recover—assuming improvements have been made—until the next broad core update is released.

However, we're constantly making updates to our search algorithms, including smaller core updates. We don't announce all of these because they're generally not widely noticeable. Still, when released, they can cause content to recover if improvements warrant.

Do keep in mind that improvements made by site owners aren't a guarantee of recovery, nor do pages have any static or guaranteed position in our search results. If there's more deserving content, that will continue to rank well with our systems.

It's also important to understand that search engines like Google do not understand content the way human beings do. Instead, we look for signals we can gather about content and understand how those correlate with how humans assess relevance. How pages link to each other is one well-known signal that we use. But we use many more, which we don't disclose to help protect the integrity of our results.

We test any broad core update before it goes live, including gathering feedback from the aforementioned search quality raters, to see if how we're weighing signals seems beneficial.

Of course, no improvement we make to Search is perfect. This is why we keep updating. We take in more feedback, do more testing and keep working to improve our ranking systems. This work on our end can mean that content might recover in the future, even if a content owner makes no changes. In such situations, our continued improvements might assess such content more favorably.

We hope the guidance offered here is helpful. You'll also find plenty of advice about good content with the resources we offer from Google Webmasters, including tools, help pages and our forums.

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