TLDR
Google's September 2026 spam update ran for nearly 14 days, about five times as long as August's and the longest of this year's four spam updates. SEO consultant Marie Haynes reported a rise in manual-action requests for thin, scaled and pure-spam content, and said most came from legitimate, long-standing businesses.
KEY TAKEAWAYS
Google's September 2026 spam update completed on 8 October at 01:37 PDT, closing a rollout that began on 24 September at 09:15 PDT and ran for nearly 14 days.[1] That puts it in a different category from everything else Google ran this year.
The three earlier 2026 spam updates each finished within about three days: March ran from 24 to 25 March, June from 24 to 26 June and August from 18 to 21 August.[4] By the timestamps on Google's status dashboard, September's run was about five times as long as August's.
What practitioners observed
Search Engine Roundtable executive editor Barry Schwartz was more cautious about the scale. He wrote that the update "seemed" to be "pretty impactful, some are saying more core update like of an impact", then added: "I am not sure about that."[4] Core updates carry broader ranking consequences than typical spam runs, so that framing matters for site owners trying to diagnose traffic losses.
SEO consultant Marie Haynes flagged the enforcement shift directly. Haynes reported a surge in requests for help with manual actions, citing thin content, pure spam and scaled content, and said that most affected sites were legitimate long-standing businesses.[2]
Have had a big increase in requests for help with manual actions lately. These include thin content, pure spam, and scaled content. Most of these sites are legitimate long standing businesses.
2026-10-06 · View on XHaynes said the volume had gone from essentially no requests to several per week. She said it was "not nearly as high as the pre-Penguin manual action era, but interesting considering I don't actively talk about or advertise consulting around manual actions anymore."[3]
Went from essentially no requests to several per week. It's not nearly as high as the pre-Penguin manual action era, but interesting considering I don't actively talk about or advertise consulting around manual actions anymore.
2026-10-07 · View on XGoogle's spam policies define scaled content abuse as creating many pages with little or no value to manipulate search rankings. Violations are detected through automated systems and human review, and can result in manual actions that demote or remove offending pages from search results entirely.[5] Manual actions go beyond algorithmic adjustments: a human reviewer flags the site and can strip pages from results rather than simply push them down.
What Australian site owners should do now
The update applied globally and to all languages from the moment it launched, putting Australian sites fully in scope.[1] Prompt the Market flagged the two-week warning when the update launched on 24 September; the final run landed at the top of that estimate.
Site owners should open Google Search Console and check the Manual Actions report. If traffic dropped after 24 September and held lower through 8 October, compare the period before launch against figures from after the close date to isolate the update's effect from other volatility. Tracking tools showed elevated movement across 25 to 27 September, 30 September, and 4 to 6 October, which gives useful anchor points for a week-by-week comparison.
SOURCES & CITATIONS
- Google Search Status Dashboard: September 2026 Spam Update
- Marie Haynes on manual-action requests: thin content, pure spam, scaled content
- Marie Haynes on volume of manual-action requests
- Search Engine Roundtable: Google September 2026 Spam Update Done
- Google Search spam policies: scaled content abuse and manual actions
- Prompt the Market: Google's September spam update could run for two weeks
FREQUENTLY ASKED QUESTIONS
How long did Google's September 2026 spam update run?
How does that compare to earlier 2026 spam updates?
What kinds of sites were affected?
What should Australian site owners do now?
James Dore is Strategy Director at Bushnote, a leader in SEO and AEO in Australia. He writes on search, AI and the technology decisions shaping government and industry.
