Google’s September 2026 spam update ran from 24 September to 8 October 2026, taking 13 days and 16 hours, by far the longest of the year’s four spam updates. Google called it a normal spam update for all languages and locations and did not name a specific policy it targeted. If your traffic dropped in that window, check it against Google’s spam policies before assuming a core quality problem.
The timeline
| 2026 spam update | Started | Finished | Duration |
|---|---|---|---|
| September | 24 Sep | 8 Oct | 13 days, 16 hours |
| August | 18 Aug | 21 Aug | About 2.5 days |
| June | 24 Jun | 26 Jun | About 2 days |
| March | 24 Mar | 25 Mar | About 19.5 hours |
Dates and durations from Search Engine Roundtable and Search Engine Journal, which confirmed completion on 8 October. For context, Google ran one announced spam update in all of 2025, according to Coalition Technologies, so four in seven months makes 2026 unusually active.
What we know, and what we don’t
- Known: it applied globally to all languages, Google described it as a normal spam update, and it took nearly the full two-week window Google gave at launch.
- Not known: which spam policy it focused on. Google didn’t say, and rollout length alone says little about severity. A long rollout can simply mean a staged or more careful deployment.
- Confounder: Search Console’s new multimodal search-type filter launched on the same day, so reporting views changed while rankings moved.
How to tell whether it hit your site
- Compare 24 Sep to 8 Oct against the two weeks before in Search Console, by page and by query. A spam-related hit usually concentrates on specific sections or page types rather than the whole site.
- Check Manual actions in Search Console. Spam updates are algorithmic, but if anything appears there, it takes priority.
- Audit the affected pages against Google’s spam policies: scaled content abuse (many low-value pages produced mainly to rank), site reputation abuse (third-party content riding on your domain), expired domain abuse, link schemes, cloaking and, newly in 2026, back-button hijacking.
- Look at what you added recently. Programmatic page sets, sponsored sections, bulk AI content and bought links are the usual suspects.
- Rule out other causes: technical changes, seasonality, or a competitor’s gains. Our guide on how to tell if Google has penalised your site walks through the diagnosis.
If you were hit: recovery steps
- Remove or fix the violating content rather than tweaking it. Thin programmatic pages are usually better merged into fewer, genuinely useful pages; see when programmatic SEO works and when it’s thin content.
- End third-party arrangements that exist to borrow your domain’s ranking strength. Our update on site reputation abuse in 2026 explains where the line sits.
- Be patient. Google says recovery from spam updates can take months as systems learn the site now complies; there is no reconsideration request for algorithmic actions.
- Rebuild on coverage, not volume. Fewer, complete pages organised by a topical map recover and hold better than many thin ones.
Is a core update next?
Possibly. The last core update began on 21 May 2026, and Google has averaged roughly three core updates a year recently, so another would not be early. But a spam update does not predict one; the two address different problems. Use the quiet period to strengthen coverage rather than waiting. Our topical authority framework is the best preparation we know for the next core update.
Frequently asked questions
When did the September 2026 spam update finish?
It started on 24 September 2026 and Google confirmed it was complete as of 8 October 2026, a rollout of 13 days and 16 hours.
What did the September 2026 spam update target?
Google did not name a specific policy. It described it as a normal spam update that applies to all languages and locations.
How do I recover from a Google spam update?
Identify and remove content that breaks Google’s spam policies, then wait. Recovery from algorithmic spam actions can take months and there is no reconsideration request for them.
Was the September 2026 spam update a core update?
No. Spam updates and core updates are separate. The most recent core update before it began on 21 May 2026.