If every now and then you’ve noticed a sudden change in your website’s performance, you’re not alone. Every few weeks, Google tweaks how it ranks and displays search results. Some of these changes are minor and hard to notice. Others, known as core updates, can cause noticeable changes in rankings and traffic.

What Are Google Updates?

Google releases thousands of updates each year, and most are small adjustments to improve accuracy and user experience. You probably won’t even notice those. But when Google rolls out a core update, things get a bit more interesting.

Core updates are broader and affect how Google evaluates content overall. They can impact how your site performs across many keywords, not just a few. In 2024 alone, Google released several major updates, including ones focused on helpful content and spam detection. Each one changes the landscape slightly, pushing websites to focus more on quality and trust.

The Difference Between Core and Minor Updates

Minor updates happen all the time, sometimes with a handful on the same day. They’re small fixes that touch a tiny fraction of searches. Google rarely announces them because the impact is so limited.

Core updates, on the other hand, affect a much larger percentage of searches (often between 5–10%). These are the ones Google usually confirms publicly. When a core update lands, you might see changes in your site’s visibility, rankings, or traffic within a few days. It’s not necessarily bad news, with some sites seeing improvement if their content aligns with Google’s latest standards.

How Core Updates Affect SEO

The main goal of core updates is to improve search quality. Google’s algorithm looks at relevance, expertise, and content usefulness. When these standards change, so does what Google considers “high-quality”.

For example, if your site relies on outdated SEO tactics, such as keyword stuffing or thin content, you might lose visibility after an update. On the other hand, if your site provides genuinely useful, original information that answers search intent, you’ll likely gain ground.

Core updates can also remove old ranking signals. If your site benefited from a particular ranking factor that’s now less relevant, your position may drop. This doesn’t mean your site is “penalised” in the traditional sense; it just means Google has refocused what it values.

What You Can Do After a Google Update

If you’ve been hit by a ranking drop, resist the urge to panic. Google itself advises against quick fixes. Instead, take the update as a chance to review your content.

Ask yourself a few questions:

  • Does your content actually help the reader, or is it just filling space?
  • Are your pages written by someone who understands the topic?
  • Do they offer something new or valuable that other sites don’t?

It’s also worth checking Google Search Console to track which pages have been most affected. Look for patterns, as sometimes only specific topics or formats drop.

Staying Ahead of the Next Update

No one can predict every Google change (though some try). What you can do is focus on the fundamentals: relevant, trustworthy, and well-written content that serves real people and not just search engines.

At Diony, we track these updates closely and help clients adjust their SEO strategies without losing momentum. Google might change the rules, but strong content and technical foundations will always win out in the long run.