September spam update hit hardest over the weekend (5 minute read)
Barry Schwartz at Search Engine Roundtable reports the September 2026 spam update caused major ranking volatility from Friday 25 September through Sunday, with more still to come since the rollout is not finished. Early observation from Lily Ray points to highly templated, likely AI generated, programmatic pages (her example: one page per phone area code) as an early target. If your traffic dropped over the weekend, check whether your site leans on templated or AI generated pages at scale before assuming it is unrelated.