The September 2026 spam update was the fourth spam update Google confirmed in 2026. It started on September 24, 2026, and Google marked it complete on October 8, 2026, for a total rollout time of 13 days and 16 hours on the Google Search Status Dashboard. That is much longer than the three earlier spam updates this year, which each finished in under three days. You can see how it fits with the rest of the year on our page covering all Google algorithm updates.
What Google said
Google announced the update on its Search Status Dashboard with a short note: "Released the September 2026 spam update, which applies globally and to all languages. The rollout may take up to two weeks to complete." On October 8, Google added: "The rollout was complete as of October 8, 2026."
In a LinkedIn post reported by Search Engine Roundtable, Google called it "a normal spam update" that "will roll out for all languages and locations." Asked about the longer timeline, Google's John Mueller told Search Engine Roundtable: "Yes, it's likely to take longer than some of the previous ones." Google did not publish a blog post, did not mention any policy changes, and did not explain why this rollout took longer.
The announcement linked to Google's spam updates documentation, which describes spam updates as notable improvements to its automated spam detection, including its AI based system, SpamBrain.
Who was affected
Google did not say which kinds of spam this update focused on, and Search Engine Roundtable reported that Google would not say what percentage of searches were affected. Google says sites that break its spam policies may rank lower or not appear in results at all.
The clearest outside account comes from Search Engine Roundtable. Its editor, Barry Schwartz, described the update as seeming pretty impactful and pointed to ranking tool volatility around September 25 to 27, September 30, and October 4 to 6. He also said he was not sure about claims that it felt more like a core update. These are observations from tracking tools and site owners, not data from Google, so treat them as a rough guide.
What to do if your traffic changed
- Check the dates first. This rollout ran from September 24 to October 8, 2026. A drop that started well before or after those dates probably has another cause, such as a site change, seasonality, or a different Google update.
- Compare periods in Search Console. In the Performance report, compare a few weeks after the rollout ended with a similar stretch before it began. Look at which pages and queries lost clicks, not only the overall total.
- Review Google's spam policies honestly. Read the spam policies and check your site against them. Pay attention to pages made mainly to rank rather than to help people, content produced at scale with little added value, hidden text or links, and third party content hosted on your domain.
- Fix real problems, then give it time. Google's spam updates documentation says improvement is not immediate. Its systems may need months to learn that a site now complies.
- If you find nothing wrong, keep building for people. Not every drop during a spam update is caused by the update. Keep publishing useful, original content for your customers, using Google's helpful content guidance as a checklist.
Frequently asked questions
Why did the September 2026 spam update take almost two weeks?
Google did not give a reason. It said at launch that the rollout could take up to two weeks, and John Mueller told Search Engine Roundtable it was likely to take longer than earlier spam updates, but Google did not explain why.
Was this a link spam update?
Google did not describe it as a link spam update. It called it a normal spam update that applied to all languages and locations, and it did not name the specific types of spam it targeted.
How long does recovery take after a spam update?
Google says it can take months. After you fix any policy problems, its automated systems need time to learn that your site now complies before rankings may improve.