Google spam update: How is it different from the core update?

When Google confirmed an update in 2026, the same question resurfaced in marketing meetings: Did traffic drop because of content quality or because of some practice that Google considers spam?

The answer changes everything. A spam update and a core update call for different responses, within different timeframes, and with different decisions on the table.

Confusing a Google spam update with a core update has practical consequences. Teams that treat a spam penalty as a quality issue rewrite content that was already good, but leave the practice that caused the drop untouched.

Google has already confirmed three spam updates for 2026: March, June, and August. The most recent one finished rolling out on August 21, 2026, according to the official record from the Google Search Status Dashboard.

What is a Google spam update, and what does it evaluate?

A Google spam update is an update to the automated systems that enforce Search’s spam policies. It does not redefine what constitutes quality, but rather improves the detection of practices that are already prohibited and demotes or removes the pages involved. The official documentation remains the standard.

Google defines spam as a technique used to deceive users or manipulate Search systems. The official definition covers two targets: manipulating rankings and manipulating generative AI responses in Search.

Detection is mostly automated; however, Google also takes manual actions when human review identifies a violation, in which case the penalty is listed by name in the Manual Actions report in Search Console.

The August 2026 spam update illustrates this. It rolled out without any announcement of a new policy, and nothing became prohibited that week: what changed was the ability to identify what was already prohibited.

For an e-commerce site or a service website, the practical takeaway is clear. If the site doesn’t use any of the tactics described in the documentation, a spam update tends to be neutral or even favorable, because competitors who do use them are taken out of the running.

Caption: Visual representation of the Google spam update: monitoring of pages in search results and impact on organic traffic graphs.

What’s the difference between a Google spam update and a core update?

The difference between a spam update and a core update lies in the focus of the assessment. A core update reassesses how ranking systems understand the relevance, usefulness, and reliability of content in general.

A spam update, on the other hand, enforces specific rules against practices that Google explicitly prohibits, resulting in a drop in rankings or removal from search results.

A core update is a reassessment, not a punishment. Google advises those affected to improve the content created for people, because a drop in rankings generally means that other content is now considered better for those search queries.

A spam update is the opposite—it’s the enforcement of a rule. There is a specific practice mentioned in the documentation, a page that uses it, and a predetermined consequence for it.

This distinction changes three specific decisions made by the team:

• Diagnosis: In a core update, you compare your content to that of a competitor who has risen in rankings. In a spam update, you audit the practice, template, and domain history.
• Correction: A core update requires broad and ongoing editorial improvements. A spam update requires removing the tactic; simply rewriting the text won’t solve anything.
• Scope: A Core Update typically affects the performance of groups of pages by topic. A Spam Update can affect an entire section, a subdomain, or the entire website.

Both can occur close together. In 2026, the May core update and the June spam update occurred just a few weeks apart, making it essential to separate them by date range in any analysis.

What do Google’s spam policies prohibit today?

Google’s spam policies currently include 16 named categories, plus a group of additional practices that can also lead to demotion or removal. The list is public and stable; even the August 2026 spam update rolled out without announcing any new categories.

Knowing the names matters because an internal audit becomes an objective review rather than a matter of opinion. Here’s how the documentation organizes the categories:

• Cloaking: presenting different content to users and search engines with the intent to manipulate rankings.
• Doorway page abuse: Pages created to rank for similar search queries, which lead the user to an intermediate destination of little value.
• Expired domain abuse: purchasing an expired domain and reusing it to host content of little or no value.
• Injected content: content inserted into the site by exploiting a security vulnerability.
• Hidden text and link abuse: placing content on a page solely for search engines, without it being actually visible to readers.
• Keyword stuffing: filling a page with keywords or numbers to manipulate search rankings.
• Link spam: creating links to the website with the primary purpose of manipulating search rankings.
• Machine-generated traffic: sending automated queries to Google, including scraping results to check rankings.
• Malicious practices: Distributing malware and engaging in abusive behavior toward users.
• Misleading functionality: creating pages that lead users to believe they will access something the pages do not actually provide.
• Large-scale content abuse: generating a large number of pages with the primary goal of manipulating rankings, without providing value to readers.
• Scraping: taking content from other websites—usually in an automated manner—and hosting it to manipulate rankings.
• Site reputation abuse: publishing third-party content on a host site primarily because of that host’s established ranking signals.
• Disguised redirection: Maliciously redirecting users by showing them something different from what the search engine saw.
• Superficial affiliation: publishing affiliate links with descriptions copied from the original merchant, without any original content.
• User-generated spam: spam content posted by third parties in open sections of the site, such as comments, forums, and profiles.

In addition to these 16, the documentation describes additional practices that also lead to demotion or removal: legal removals, removal of personal information, policy circumvention, scams, and fraud.

Policy circumvention deserves special attention from those who manage large websites. Google describes the creation of new subdomains or subdirectories to continue the practice after a penalty as a violation.

On large websites, three categories account for most of the issues: scaled content abuse, website reputation abuse, and user-generated spam. The last one is the most insidious.

Do spam policies apply to AI Overviews and generative responses?

Yes. Google’s spam policies apply to attempts to manipulate generative AI responses in Search, including AI Overviews.

The official definition of spam lists this type of manipulation alongside traditional ranking manipulation in the same opening paragraph of the documentation.

This clarification came with the June 2026 spam update and changes the risk calculation for an entire category of tactics.

The sticking point is the promise to “optimize to be cited by AI.” If the goal is to write better, provide direct answers, and cite verifiable sources, we’re talking about legitimate SEO practices, not a strategy specific to AI.

The problem begins when the tactic turns into artificial content production: pages created in bulk for every question variation, blocks of questions and answers stacked without any real readers, text written to please the crawler. That’s when the practice falls squarely into the territory described by the policy.

There’s also a technical argument against these tactics, and it comes from the documentation itself. Google states that there are no additional requirements to appear in AI Overviews or AI Mode, nor are any special optimizations necessary, and that there’s no need to create text files for AI or specific structured data for that purpose.

In other words, there is no shortcut, but there is a risk. The only path left is the same as always, now with greater rigor: original, extractable, and reliable content—which, in practice, is what underpins a good answer engine optimization.

In a B2B SaaS model, this dispels a common temptation. Generating a page for every variation of a pricing question—with a generic three-line answer—does not place the brand in the AI’s response and puts the domain at risk of large-scale content abuse.

What is parasitic SEO, and why does it threaten your domain?

Parasitic SEO is the practice of publishing content on a third-party website to leverage its authority instead of building your own. In Google’s documentation, the official term is “website reputation abuse,” and the policy applies even when the published content is high-quality.

The official criterion is the reason why that content ranks. If the third party publishes there primarily because the host already has established ranking signals, the policy applies.

The issue gained prominence in 2026. The March core update had a stated focus on content evaluation, combating parasitic SEO, and refined spam detection, and subsequent spam updates kept the topic on the radar of those who follow Google updates.

The practice takes many forms, almost always with a catchy marketing name: sponsored content on a niche website, product listings on a marketplace, media kits sold as editorial space, subdomains provided to partners, and blog sections on a distributor’s website.

The distinction is editorial, not commercial. An article with an approved topic and reviewed by the host’s editorial staff is a partnership; a service page in a rented subdirectory, with no involvement whatsoever from the editorial staff, is the scenario described by the policy.

The practical consequence relates to ownership. Space purchased on a third-party domain is a fragile asset, because the decision to maintain, modify, or remove it is never yours, and the work of E-E-A-T on your own domain remains the only search asset that no one can shut down at someone else’s discretion.

Is AI-generated content spam to Google?

AI-generated content is not prohibited by Google. What the policy prohibits is the abuse of scaled content, defined as generating a large number of pages with the primary goal of manipulating rankings, without providing value to readers.

The documentation cites the use of generative AI tools as one example of this practice.

The line is drawn based on intent and outcome, not the tool itself. Google explicitly states that using automation—including AI-generated content—with the primary purpose of manipulating rankings violates its spam policies.

In online retail, the risk pattern is easy to recognize: one page per product, per city, and per combination of the two, generated in bulk, with the same text and only the name changed.

The opposite is also easy to identify. A product page with genuine technical specifications, original photos, a clear return policy, warranty information, and verifiable reviews does not constitute spam simply because AI assisted in its creation.

The useful question during editorial review isn’t “Was this written by AI?” but “Would this page exist if Google didn’t exist?”

Those who have in-house experts to interview have a clear advantage in this regard. In-house specialists, field technicians, and customer case studies provide firsthand experience that no off-the-shelf language model can match.

What were Google’s spam updates in 2026?

The year 2026 saw actual spam activity, not just calendar-related noise. Google confirmed three spam updates—in March, June, and August—none of which were accompanied by new policies. The official start and end dates are available on the Google Search Status Dashboard.

Duration is often underestimated in analysis. A short update concentrates the impact and makes it easier to isolate the time window; a long update spreads out the variation and confuses the interpretation. Here’s how the three rounds were distributed:

Table: Dates and durations of the three spam updates confirmed by Google in 2026, from most recent to oldest.

The interval between rounds has shortened. Three updates in five months mean that the spam audit is no longer an annual task but has become a quarterly routine.

The March 2026 spam update was the fastest of the year, taking 19 hours and 30 minutes. It came just a few days before the March core update, which focused on parasitic SEO, and the proximity of these windows explains the diagnostic confusion in the first half of the year.

The June 2026 spam update lasted 2 days and 1 hour, and it is the most significant of the year for a reason unrelated to its duration: it was accompanied by clarification that the policies target attempts to manipulate generative responses.

The August 2026 spam update ran from August 18 to 21—over 3 days—globally and across all languages. With no new policy announced, the expected effect is a more consistent enforcement of the rules that were already in place.

Which signs of volatility in August were not confirmed by Google?

Some fluctuations reported by tools and SEO communities in August have not been officially confirmed. They are not facts and should not be included in reports as a cause.

• Significant volatility between August 1 and 6, 2026, with no official update announced for that period.
• A drop in traffic on Google Discover since mid-July, reported by publishers but not confirmed by Google.
• Favicons disappearing from SERPs and the video carousel appearing less frequently, according to isolated reports from August 20.

An unconfirmed signal serves only one purpose: to decide where to look first. It does not support any conclusions nor justify a change in strategy.

How can you tell if you’ve been affected by a spam update?

The spam update self-diagnosis begins by identifying where the drop occurred.

There are separate reports in Search Console, Search, Discover, and Google News, and within Search, there’s also a search type filter. Combining everything into a single chart hides the source of the problem.

The most common mistake is to conclude that “we were penalized” based on an aggregate total that dropped for another reason. Seven steps can help avoid this problem:

1. Narrow down the timeframe. Compare the exact period of the update with the two preceding weeks and with the same period last year to distinguish between algorithmic changes and business seasonality.
2. Separate the sections. A drop in Discover alone, for example, points to a different type of problem, not a spam penalty in Search.
3. Use the search type filter. Within Search, switch between Web, Images, Video, and News, and test what the official documentation on diagnosing traffic drops recommends.
4. Open the Manual Actions report. If a manual action has been taken, the violation is named, and the solution is to remove the offending practice and request reconsideration.
5. Look at it page by page and query by query. Spam updates usually affect the entire site uniformly. A section, template, or subdomain dropping off together is a stronger indicator than a general decline.
6. Compare with the list of policies. With the affected pages in hand, go through the documentation category by category and look for the specific practice—don’t try to guess.
7. Check the AI surfaces. The generative AI reports in Search Console, launched by Google in June 2026, show whether the loss is in traditional search or in the answers layer.

Be careful with the AI data. These reports have specific aggregation characteristics, and comparing the AI curve with that of classic Search without understanding the scope can lead to incorrect conclusions.

In the core update, there is no violation to fix. The official guidance is to improve content broadly and continuously, and the effect generally appears in subsequent re-evaluations, with no set date.

In the spam update, there is an identifiable practice. Once the practice is removed, the reevaluation depends on the pages being crawled and reprocessed again, and, in the case of a manual action, it depends on the reconsideration request being accepted.

Google does not promise a timeline in either case. The documentation states that some changes take effect within a few days, while others may take several months, and that there is no guarantee of a noticeable impact.

Based on market observations, what usually recovers first is traffic that dropped due to association—such as a good page within a problematic section. This is an observation of practice, not a statement from Google.

How can you protect your website’s content from a Google penalty?

Three actions address most of the risk of a Google penalty on a content site, and all can be completed within a quarter. They target the categories that most frequently appear on large sites: scaled content abuse, site reputation abuse, and user-generated spam.

1. Take inventory of what was generated by templates. List the pages created in bulk by product, service, or city. Where the text is the same with only the name changed, consolidate them into one strong page or provide real content for each one.
   
   Consolidating is better than deleting. A single page with verifiable information concentrates signals, while forty shallow variations dilute those signals and create exposure.
   
2. Map out what the brand publishes on third-party domains. List portals, marketplaces, aggregators, and partner blogs featuring your content, and classify each one based on editorial criteria. If there is no editorial curation by the host’s editorial team, treat it as a risk and plan for migration.
   
   
3. Close any open doors for third-party content. Unmoderated comments, product reviews, public profiles, upload areas, and subdomains granted to partners are classic vectors for user-generated spam and increase the risk of policy circumvention.

How does the “spam update” change strategies for educational marketing?

Strategies for educational marketing are affected by the spam update in three ways: batch-generated course pages, content published on third-party portals during recruitment, and open channels in the student portal. The rule is the same as in any industry; only the nature of the risk changes.

This is an industry-specific example, and the reasoning applies to any niche with a seasonal cycle and high-consideration decisions: health insurance, real estate, tourism, and software sold on an annual contract basis.

Seasonality is the first point. A decline that coincides with the end of the enrollment window is not a negative sign, and comparing the update period with the same period from the previous year prevents a misdiagnosis.

The course page is the second point. An educational institution offering forty courses across ten cities is ripe for scaled content abuse if each combination becomes a URL with the same text.

What underpins these pages is real evidence: an actual curriculum, identified faculty, class format, employability data, and verifiable graduate testimonials. None of this can be generated by a language model.

The third point is content hosted on third-party domains. Scholarship guides, course aggregators, and regional portals are standard tools for student recruitment, and not every publication of this type constitutes an abuse of the site’s reputation.

The distinction is the same as in any industry: content approved by the host site’s editorial team constitutes a partnership, whereas space rented solely because the domain ranks well is the practice that the policy addresses.

The local relevance works in favor of regional institutions. Educational marketing strategies that invest in content featuring the specific names of professors, campuses, and cities build a presence on their own domain that no third-party decision can undermine.

Frequently Asked Questions About the Google Spam Update

So, how do you incorporate Google’s spam update into your SEO routine?

Spam updates are no longer a rare occurrence. With three confirmed rounds between March and August 2026, and with policies now explicitly targeting generative responses, audits based on the official list have become a routine quarterly task, on par with technical website reviews.

The good news is that the guidelines are public and don’t change with every update. Anyone who publishes content with genuine authorship, verifiable information, and value for those making purchasing decisions has little to fear from a spam update.

The risk lies in taking shortcuts. Batch-generated pages, rented space on high-traffic portals, and text written for AI extractors are exactly the practices the documentation identifies, and each round of enforcement detects them more easily.

If the team doesn’t know which pages were generated by templates, where third-party content is present, and which open channels accumulate user-generated content, that’s the starting point.

A diagnosis of SEO using the official list as a guide turns uncertainty into a corrective action plan with priorities and deadlines. It’s worth measuring the return together: organic search ROI data in the age of AI show why protecting your own domain is more cost-effective.

To discuss your website’s situation with experts who handle this every day, talk to the team at mkt4edu.