Google Core Updates: What They Are and What to Do

A core update is a broad change to Google's ranking systems. Google announces each one on its Search Status Dashboard with a start date and a duration, and that page is the only source of record for the dates. Core updates "don't target specific sites or individual web pages", so there is nothing to appeal and nothing to file. Google's advice after a drop is to wait for the rollout to finish, compare the right date ranges, and assess your site against its self-assessment questions rather than hunt for a single fix. It also says plainly that there is "no guarantee that changes you make to your website will result in noticeable impact in search results". The one that matters most here is the March 2024 core update, because it shipped alongside the policy that named expired domain abuse for the first time. Quoted from Google's core updates guidance, read on 16 September 2026.

What is a Google core update?

Core updates are designed to ensure that overall, we're delivering on our mission to present helpful and reliable results for searchers. These changes are broad in nature, and don't target specific sites or individual web pages. As content on the web changes, we assess and update our systems to keep pace, as a whole.

Google's analogy is a restaurant list you wrote in 2019 and are now revising: "restaurants that move down aren't necessarily 'bad'; there are just other restaurants that make your top 20."

That is the difference between a core update and a manual action. An action is enforcement against your site, visible in Search Console, and appealable. A core update changes how everything is ranked, with no notice and no appeal, because nothing was done to you specifically.

The confirmed dates

Every core and spam update is listed with a start date and duration on the status dashboard. The recent record, read on 16 September 2026:

Two things read off that table. Core updates take weeks, and the March 2024 one took 45 days, which is why so much got attributed to it. And core and spam updates are separate events that sometimes ship days apart, so "which update hit me" is the wrong question until both have finished.

What should I do after a core update?

Google's sequence, condensed from its guidance.

Confirm the rollout finished. Check the status dashboard and note the start and end dates.

Compare the right dates. Google recommends waiting "at least a full week after a core update completes", then comparing that week against a week before the update started rolling out.

Size the drop before reacting. Google splits the response by magnitude. A small drop, its example being position 2 to position 4, needs nothing: "There's no need to take drastic action (in fact, we recommend avoiding making changes to content that's already performing well)." A large drop, its example being position 4 to 29, gets a deeper assessment.

Assess the site, not the page. The deeper assessment is Google's self-assessment questions applied to the site as a whole, and Google suggests asking someone unaffiliated to run them.

Avoid the quick fix. In Google's words: "Avoid doing 'quick fix' changes (like removing some page element because you heard it was bad for SEO). Instead, focus on making changes that make sense for your users and are sustainable in the long term."

Then the honest limit:

Keep in mind that there's no guarantee that changes you make to your website will result in noticeable impact in search results, and that positions in Google Search results aren't static or fixed in place.

Google adds that improvements can take effect in a few days but "could take several months" for its systems to confirm. No recovery rate is published, and any percentage you see for "sites that recovered from a core update" traces to no study.

Why the March 2024 core update matters here

It is the update that changed the rules for expired domains. Google's announcement did two things at once.

It folded the helpful content system into core ranking:

The March 2024 core update is a more complex update than our usual core updates, involving changes to multiple core systems. It also marks an evolution in how we identify the helpfulness of content.

Just as we use multiple systems to identify reliable information, we have enhanced our core ranking systems to show more helpful results using a variety of innovative signals and approaches. There's no longer one signal or system used to do this.

And it introduced three new spam policies, expired domain abuse among them:

Today, we're announcing three new spam policies against bad practices we've seen grow in popularity: expired domain abuse, scaled content abuse, and site reputation abuse.

The site reputation one has since been renamed and changed twice, most recently on 30 August 2026, and the scaled content policy is the one that governs AI-written content. The spam policies hub covers all four that touch this market.

What about helpful content and E-E-A-T?

The helpful content system stopped existing as a separate update in March 2024 and became part of core ranking, which is why there has been no "helpful content update" since. E-E-A-T, meaning experience, expertise, authoritativeness and trustworthiness, is the vocabulary Google's quality raters use, and Google is specific about its status:

While E-E-A-T itself isn't a specific ranking factor, using a mix of factors that can identify content with good E-E-A-T is useful.

Of these aspects, trust is most important. The others contribute to trust, but content doesn't necessarily have to demonstrate all of them.

Google also says raters "have no control over how pages rank" and that "rater data is not used directly in our ranking algorithms". E-E-A-T is not a score, not measurable from outside, and nothing to optimise directly. For a rebuilt expired domain it reduces to one question: is this a subject you can demonstrably speak to. If not, the domain's history works against you.

One more line from Google worth keeping, because it applies to every authority number sold in this market including ours: "some third-party services provide 'reputation' or 'authority' scores for sites. These don't correspond to any of Google's own signals nor come from Google."

Using the Revised directory for this

Core updates are the reason to buy a domain for its history rather than for a metric. A score is a snapshot of one release of one index; the history is the thing that survives a ranking change.

1. Open the authority hub for listings ranked by link standing, and treat the number as a way to sort a long list rather than a prediction. Google has said no third-party score maps to its signals.
2. Read the History era summaries on a shortlist. One subject held across years is the durable asset. Registration year is known for only 506 of the 12,137 live listings, mean 14 years, so archived snapshots are the better clock.
3. Use the Quality spam-screen band. 10,318 live listings sit in the low band, 1,819 in the moderate one, and 78 domains are blocked.
4. Verify a shortlisted name with the expired domain checker and the domain authority checker.
5. Plan what you will publish before you register. Aged domain versus new domain covers which clock survives a drop, and what to do with an expired domain the options once you own one.

FAQ

What did the March 2024 Google core update change? Two things. It folded the helpful content system into core ranking, so there is no longer a single helpfulness signal. And it shipped alongside three new spam policies: expired domain abuse, scaled content abuse and site reputation abuse. It ran for 45 days from 5 March 2024.

How long does a Google core update take? Weeks. Recent ones have run from around 12 days to 18 days. The March 2024 update ran 45 days. Google posts the start and the finish on its status dashboard.

How do I know if a core update hit my site? Wait for the rollout to finish, then compare the week starting seven days after it completed against a week before it began. Google recommends exactly that comparison.

Can I recover from a core update? Google says improvements can take effect in days or several months, and that there is no guarantee any change produces a noticeable impact. There is no published recovery rate and no guaranteed path.

Is a core update the same as a penalty? No. Core updates "don't target specific sites or individual web pages" and generate no notification. A penalty is a manual action, which appears in Search Console and can be appealed.

Does E-E-A-T have a score I can check? No. Google says E-E-A-T is not a specific ranking factor and that quality-rater data is not used directly in ranking. Of the four parts, Google says trust is the most important.