Google rolled out its third spam update of the year between August 18 and August 21, 2026, affecting search results worldwide and in every language. This update arrives after Google twice expanded its definition of spam: in April, it added a rule against back button hijacking, and in May, it extended spam policies to cover attempts to manipulate AI answers in Search. The timing is critical—just before the update, Reddit's share of citations in ChatGPT Search plummeted from 3.8% to 0.5%, according to Promptwatch. That's an 87% drop in two weeks. For business owners, this means your search visibility could be hit by multiple forces at once, and you need to know which one is affecting you.

What Exactly Changed in Google's Spam Policies?

Google's spam policies now explicitly cover attempts to manipulate generative AI experiences in Search, including AI Overviews and AI Mode. This means tactics like cloaking, keyword stuffing, or creating low-value content designed to game AI-generated answers are now officially against the rules. However, Google has not confirmed whether the August update specifically targets AI manipulation. The update is part of a broader effort to improve automated detection of spam across all surfaces.

Why Reddit's AI Citation Drop Matters to Your Business

Reddit's influence on AI search citations has been volatile. It rose sharply over the past year, then faded dramatically in the two weeks before the update. If your business relies on Reddit for referral traffic or if you've been quoted in AI answers, this shift could directly affect your visibility. But the drop isn't necessarily tied to the spam update—it could be a separate algorithm change or a shift in how AI models select sources. The key takeaway: AI search is unpredictable, and you can't depend on any single platform for traffic.

How to Diagnose a Traffic Drop: Is It the Spam Update or Something Else?

Before you panic, isolate the cause. Check the timing: did your traffic drop exactly between August 18 and 21? If so, the spam update is a likely culprit. Next, look at the surface: are you losing rankings in traditional Google search, or in AI answers? Finally, compare your competitors—if they're also down, it's likely a broader algorithm shift. Tools like Semrush's Position Tracking can map daily ranking changes against the update dates, while Organic Rankings shows competitor visibility trends. The Visibility Overview Report tracks citations across ChatGPT, Perplexity, Google AI Mode, and Bing, giving you a full picture.

What This Means for Your Business

If you've been using manipulative tactics—like buying links, scraping content, or trying to trick AI answers—this update is a direct threat. Clean up your practices now. If you're playing by the rules, the update could actually help you by reducing spammy competition. However, the AI citation volatility is a separate risk. If you've been relying on AI search for traffic, diversify your sources. Focus on building a strong brand and high-quality content that AI models naturally cite, rather than chasing algorithmic tricks.

Your Move: Audit Your Search Visibility This Week

Start by pulling your search traffic data for the past month. Note any dips around August 18-21. Then, check your visibility in AI search tools like ChatGPT or Perplexity. If you see a drop, compare it to your competitors. If you can't identify a clear cause, wait a week—sometimes fluctuations are temporary. But if you spot a pattern, adjust your content strategy to emphasize authority and trustworthiness, which are now more important than ever.




Source: Semrush Blog

FAQ

If you use manipulative tactics like link buying or content scraping, yes. If you follow Google's guidelines, you're likely safe—but you may see temporary fluctuations as the algorithm recalibrates.

Google hasn't said, but it's likely a combination of algorithm changes and shifts in how AI models select sources. It's a reminder not to rely on any single platform for AI search traffic.