Google’s September 2026 spam update is still rolling out, but early ranking volatility is already prompting publishers and SEO professionals to examine what may have changed. Google has not published a detailed list of individual ranking factors affected by the update, making the safest strategy a review of spam-policy compliance, content quality and search performance data.
Key Points
- Google launched the September 2026 spam update on September 24.
- The update applies globally and across all languages.
- Google says the rollout may take up to two weeks.
- The company has not disclosed a specific list of ranking factors targeted by the update.
- Google's spam policies cover practices such as scaled content abuse, cloaking, hacked content and other attempts to manipulate Search.
- AI-generated content is not automatically considered spam; the issue is whether content is produced at scale primarily to manipulate rankings or provides little value.
- Publishers should compare Search Console performance with the timing of the rollout before making major changes.
Google’s September Spam Update Is Still Rolling Out
Google released its September 2026 spam update on September 24, launching another global change to its systems for detecting and addressing search spam.
Unlike a core update, a spam update is specifically connected to Google's spam policies. The September rollout applies to all languages and regions, and Google's Search Status Dashboard says it may take up to two weeks to complete.
That longer rollout makes it difficult to determine immediately whether a ranking decline is permanent or simply part of the ongoing adjustment.
What Actually Changed?
Google has not announced a specific list of individual ranking signals targeted by the September update. Therefore, claims that one particular factor — such as word count, AI writing or backlinks — was "the" cause of ranking changes should be treated cautiously. The confirmed information is that the update is a global spam-policy rollout, while the detailed algorithmic changes remain undisclosed.
1. Scaled Content Is Under Greater Scrutiny
One of the most important areas for publishers to review is scaled content abuse.
Google defines scaled content abuse as producing large amounts of content primarily to manipulate Search rankings rather than help users. Its policy applies regardless of whether the content is generated by humans, automation, AI or a combination of methods.
This distinction matters in 2026 because publishers can now generate hundreds or thousands of pages extremely quickly using AI. AI itself is not the determining issue. A site can use generative AI as part of its workflow, but publishing large quantities of low-value, repetitive or minimally transformed material for search traffic can create spam-policy risks.
2. Original Information Matters More Than Volume
Google's guidance continues to emphasize content that provides original information, research, analysis or other meaningful value.
Its people-first guidance specifically encourages publishers to ask whether their pages provide original information and whether they offer a substantial and complete treatment of the subject.
For publishers, this means simply rewriting information already available elsewhere may be less useful than adding context, verified data, original reporting, expert explanation, comparisons or information that helps readers understand why an event matters.
AI Content Is Not Automatically Spam
Google's current guidance does not say that using AI automatically causes a ranking penalty. The concern is how AI is used. Content created with generative AI can become problematic when large quantities of pages are produced without adding meaningful value and with the primary purpose of manipulating search rankings. Google updated its generative-AI guidance again on October 1, 2026, to align with its Search Quality Raters guidance.
3. Manipulative Search Tactics Remain a Risk
Google's spam framework covers a broad range of tactics designed to manipulate search visibility.
These include practices such as cloaking, hacked content, misleading redirects and other forms of search manipulation. Google's policies also address expired-domain abuse and other techniques that can be used to exploit existing search authority.
The lesson for publishers is straightforward: technical SEO should support useful content and accessibility, not be used to disguise or manufacture relevance.
4. Search and AI Answers Are Now Connected
Google's documentation was updated in 2026 to clarify that its spam policies also apply to generative AI responses within Google Search. That means attempts to manipulate AI-generated search experiences are also covered by the broader spam framework.
This is increasingly important as Google Search incorporates AI-powered features alongside traditional results. Publishers therefore need to think about whether their content is genuinely useful as a source of information, rather than focusing exclusively on conventional blue-link rankings.
How to Tell If Your Site Was Affected
The first step is to look at your own data instead of assuming that every traffic decline came from the spam update.
Open Google Search Console and compare clicks, impressions and average positions before and after September 24. Look at individual pages rather than only total site traffic.
Also compare the timing with Google's other ranking changes. Google's official 2026 ranking history shows separate March and May core updates, followed by spam updates in March, June, August and September.
This matters because a ranking change that began weeks before the September spam rollout may have a different explanation.
Do Not Panic-Edit Your Entire Website
Because the September update is still rolling out, immediately deleting large numbers of articles or changing titles across an entire site can make diagnosis harder. First identify which pages changed, when the change began and whether those pages share a common content or technical pattern.
How Publishers Can Adapt
Audit repetitive content. Identify pages that substantially repeat information already published elsewhere or provide little additional value.
Add original value. Where possible, include original reporting, data, analysis, firsthand information, useful examples or clearly explained context.
Review AI workflows. If AI is part of the publishing process, use human review and editing to ensure the final article is accurate, useful and genuinely different from source material.
Remove manipulative tactics. Check for cloaking, misleading redirects, hacked pages and other practices covered by Google's spam policies.
Improve existing pages. A smaller number of strong, useful pages can be more valuable than continually expanding a site with near-duplicate articles.
Monitor Search Console. Track impressions, clicks, queries and page-level changes before and after major Google updates.
What Not to Assume
A traffic decline during a spam update does not automatically prove that a site violated Google's spam policies. Search rankings can change for many reasons, including algorithmic adjustments, competitors, changes in search behavior and changes to the search-results page itself.
Likewise, there is currently no official Google statement saying that a specific article length, publishing frequency or use of AI is responsible for ranking changes in the September 2026 spam update.
The strongest conclusions should therefore come from Google's documented policies combined with a site's own Search Console data.
The Bigger Picture
Google's 2026 spam updates show how search optimization is becoming increasingly difficult to separate from content quality.
As AI makes it possible to create enormous amounts of content, the competitive advantage is shifting toward publishers that can provide information that is genuinely useful, original and trustworthy. Google's systems are also increasingly connected to AI-powered search experiences, making manipulation of those systems part of the wider spam-policy landscape.
For publishers, the practical response is not simply to publish less. It is to make each page serve a clear purpose for the reader and ensure that the site's growth is not based primarily on producing search-targeted pages at scale.
Conclusion
Google's September 2026 spam update is still underway, and Google has not released a detailed breakdown of exactly which ranking signals caused individual sites to move.
What is clear is that Google's spam framework continues to focus on manipulation, scaled low-value content and other practices designed primarily to influence Search. At the same time, Google's people-first guidance emphasizes original, useful and reliable information.
For publishers adapting to the 2026 search environment, the practical strategy is to monitor Search Console carefully, audit potentially repetitive or manipulative practices, strengthen original value and avoid making major sitewide changes before the current rollout has finished.
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