Google began its fourth confirmed spam update of 2026 on September 24. This time, the company estimates the rollout will take two weeks — significantly longer than previous updates this year.
The two-week rollout period overlaps with the end of the third quarter. For publishers analyzing SEO performance quarterly, this means it will be harder to separate the impact of the update from normal organic traffic fluctuations.
Why Two Weeks Is Unusual
Previous spam updates this year rolled out faster. Google has not specified which spam types are targeted and has not confirmed speculation about AI-generated content or other specific targets.
Google has not clarified which specific spam policy or spam type this September update addresses.
The Impact for Publishers
If you rely on organic search traffic, it's worth tracking changes closely during this window. Even modest ranking declines can result in significant drops in organic traffic and, consequently, the revenue it generates.
Key principle: don't react to single-day declines. Google has not announced a completion date. If the rollout runs the full announced window, that gives a calculated window ending around October 8 — this is an editorial estimate, not a date Google has published. Until Google marks the rollout complete on its ranking release history, individual position and traffic changes should be interpreted carefully.
Recovery from spam policy issues takes time. Google recommends reviewing your site for compliance with spam policies and addressing any violations. Automated systems may require several months to confirm that a site again meets the requirements.
What Complicates Impact Analysis
Simultaneously, Google added separate Web multimodal reporting to Search Console. It shows data from image-based searches, including Google Lens, Circle to Search on Android, image uploads to Google Search, and the "Search this image" feature in Chrome. Since Web multimodal is a new separate reporting type, changes in this metric should not be automatically attributed to the spam update.
When analyzing, also consider data from third-party rank tracking tools and possible changes in their operations.
For Media Buyers
The spam update affects organic Google Search results, not Google Ads campaigns. If organic traffic changed during the rollout, SEO metrics and paid campaign results should be analyzed separately.
What to Monitor
If you're a publisher:
- Track changes by page type (reviews, comparisons, rankings)
- Watch conversion rates, not just clicks
- Compare data from the two weeks before September 24 against the two weeks after completion
- Don't rewrite content immediately — wait for the rollout to finish
If you see significant losses in your analytics, check Google Search Console for violation notices. Google recommends reviewing your site for compliance with spam policies and addressing violations.
For affiliate publishers, separately review pages using scaled content or minimal original content. Google lists scaled content abuse and thin affiliation in its spam policies. Affiliate links themselves are not a violation — the problem arises when a page doesn't provide users with substantial additional value.
Regional Differences in Google Policies
Consider regional differences in how Google applies certain policies. For example, at the end of August 2026, Google modified how it applies the Site Reputation Policy for users in the EEA. This is a separate policy change and should not be automatically linked to the September spam update.
When to Expect Full Analysis
After the rollout completes, Google will update its ranking release history. This will allow you to correlate position and organic traffic changes with the update period. More detailed industry research will emerge as data accumulates.
