Google September 2026 Spam Update (24 September 2026): Now Complete, What Changed and How to Recover

The Google September 2026 spam update started at about 09:15 PT on 24 September 2026 and is now complete: Google confirmed the rollout finished at 01:00 PDT on 8 October 2026, after 13 days 16 hours. It was the fourth and longest spam update of 2026, and it came in several waves, so if your traffic fell at any point between late September and early October, now is the time to measure the full impact and start fixing.

Below I cover what Google confirmed, the specific volatility dates to check your data against, and what to do now the rollout has finished. For every other recent change, see my full list of Google algorithm updates.

Detail	Information
Update name	Google September 2026 spam update
Type	Spam update (automated spam detection)
Rollout started	24 September 2026, about 09:15 PT
Rollout finished	Complete: 8 October 2026, 01:00 PDT
Rollout length	13 days 16 hours (estimate was up to two weeks)
Confirmed by Google	Yes, start and completion both on the Search Status Dashboard
Official source	Google Search Status Dashboard

What the September 2026 spam update changed

Google’s dashboard said: “Released the September 2026 spam update, which applies globally and to all languages.” It warned, “The rollout may take up to two weeks to complete.” On 8 October it confirmed: “The rollout was complete as of October 8, 2026.”

Here is what Google did and did not say about its scope:

• It targets sites that violate some of Google’s spam policies. Google did not list which ones.
• It is not about link spam. Google ruled this out explicitly.
• No change in approach. Google did not describe any new method compared with earlier spam updates.
• More refreshes are planned. Google said periodic refreshes would continue.

Before it finished, John Mueller set expectations about its length: “Yes, it’s likely to take longer than some of the previous ones.” That proved right. At 13 days 16 hours, it was far longer than the March (under a day), June (about two days) and August (under three days) spam updates.

Timeline

Date	What happened
24 September 2026, about 09:15 PT	September 2026 spam update released; up to two weeks estimated
25 to 27 September 2026	First wave of volatility (industry observation)
30 September 2026	Glenn Gabe reports several sites with a large drop (industry observation)
30 September to 1 October 2026	Second wave of volatility (industry observation)
4 to 6 October 2026	Third wave of volatility (industry observation)
8 October 2026, 01:00 PDT	Google confirms the rollout is complete

Because completion was confirmed only on 8 October 2026, the third-party reporting on final impact is still coming in. I will treat the dashboard as the authority if anything changes.

Who was affected

Google identified no affected sites or site types. What the industry did see was volatility in three waves: 25 to 27 September, 30 September to 1 October, and 4 to 6 October. SEO consultant Glenn Gabe reported several sites with a large drop on 30 September. These are observations from trackers and individual sites, not Google statements, but they give you precise dates to check against.

How to tell if the September 2026 spam update hit your site

With the rollout finished, you can now look at the whole picture rather than guessing mid-rollout. Search Console data lags by a day or two, so give it until around 10 October for complete numbers.

1. Map your daily data to the three waves. In Search Console’s Performance report, view daily clicks from 10 September onwards. Mark 25 to 27 September, 30 September to 1 October, and 4 to 6 October. A sharp step down in any of these windows fits this update.
2. Compare before and after. Compare 10 to 23 September 2026 with the two weeks after 8 October once you have them. In the meantime, compare 10 to 23 September with 9 to 15 October as an early check.
3. Separate it from August. The August 2026 spam update ran from 18 to 21 August. If your drop started then, you were caught in August, and September may have confirmed it rather than caused it.
4. Find the section that fell. Filter by page and group by folder or template. Spam demotions usually concentrate on the part of the site that breaks a policy.
5. Check Manual actions and Security issues. If a manual action is listed, it needs its own fix and a reconsideration request.
6. Do not start with links. Google said this was not a link spam update.

Drop started	What it suggests
18 to 22 August 2026	August 2026 spam update; September may have reinforced it
25 to 27 September 2026	First wave of this update
30 September to 1 October 2026	Second wave; matches reported large drops on 30 September
4 to 6 October 2026	Third wave
Outside all of these	Probably not a spam update; check site changes and other causes

How to recover from the September 2026 spam update

Google says improvement may come if its automated systems learn “over a period of months” that the site complies with its spam policies. Now that the rollout is complete, the steps below are the ones I would take, in this order.

1. Record your baseline now. Export pages and queries for the weeks before 24 September and after 8 October. You will need this to measure recovery at future refreshes.
2. Audit the affected section against every spam policy. Scaled content abuse, expired domain abuse, doorway pages, thin affiliate pages, scraped content, cloaking, hidden text, keyword stuffing, sneaky redirects and hacked content are the common ones. Link spam is ruled out for this update.
3. Remove the pattern completely. Delete, merge or noindex pages that exist mainly to rank. Partial clean-ups tend to leave the site-level signal unchanged.
4. Stop the source. Disable the tool, feed or supplier that created the pages, and put a review step in place for new content.
5. Fix technical deception and security issues. These often sit in templates or plugins. A technical SEO review will catch cloaking, redirects and injected pages.
6. Only request reconsideration for a manual action. Algorithmic demotions have no reconsideration process.
7. Measure at each refresh. Google plans periodic refreshes. Track the cleaned section after each one rather than expecting an instant rebound.

If you were hit by both the August and September 2026 spam updates, assume the same issue was caught twice and work through it once, thoroughly. If the affected pages are templated location pages, my local SEO work rebuilds them as fewer, genuinely useful pages.

And if your site follows Google’s spam policies and your drop does not fit any of the dates above, Google’s advice is that you should not need to change anything for a spam update. Look for another cause first.

Is it still relevant today?

Yes, it is the most recent Google update. It finished on 8 October 2026, so its effects are what you see in search right now. Three things to watch over the coming weeks: whether rankings settle or keep shifting now the rollout is over, any further reporting on which kinds of sites were affected, and the next refresh Google has said is coming. Also note that the most recent broad core update was in May 2026, so a core update could arrive at any point; keep spam clean-up and quality work separate so you can tell which update moved what.

Frequently asked questions

Is the September 2026 spam update finished?

Yes. Google confirmed on the Search Status Dashboard that the rollout was complete as of 8 October 2026, at 01:00 PDT.

How long did the September 2026 spam update take?

13 days and 16 hours, from about 09:15 PT on 24 September to 01:00 PDT on 8 October 2026. It was the longest of the four spam updates in 2026.

Was the September 2026 spam update about links?

No. Google ruled out link spam for this update and did not describe any change in approach from earlier spam updates.

My traffic dropped on 30 September 2026. Was it this update?

It fits. 30 September falls inside the second wave of reported volatility, and Glenn Gabe reported several sites with large drops on that date. Confirm by checking which section of your site fell.

When will I recover from the September 2026 spam update?

Google says improvement may come over a period of months once its systems learn the site complies. Fix the issue fully, then watch for changes at future refreshes.

Sources

• Google Search Status Dashboard
• Search Engine Journal
• Search Engine Land
• Hans van Gent
• Keywords Everywhere

If your traffic dropped between 24 September and 8 October 2026, now that the rollout is complete is the right moment to find out why. My SEO audit maps your data to each wave and checks the affected pages against Google’s spam policies. Request a free audit and I will tell you what I find.