Google finished rolling out its September 2026 spam update on October 8, roughly 14 days after it began around September 24. That is far longer than the three earlier spam updates this year, which ran from under a day to nearly three days. Google says it applies worldwide across all languages but has not explained what it targeted. Site owners should avoid reacting to sudden swings in third-party rank trackers and instead check Search Console for impression and click declines lasting several days. Sites that were hit should review Google’s spam policies and fix any violations.