Google December 2025 Core Update
Completed Dec 29, 2025.
DateDec 11, 2025
PlatformGoogle SEO
TypeCore
Who it affectsAll sites
What happened
A broad core update rolling out from December 11 to December 29, 2025, overlapping with the holiday shopping period.
Who it affected
All sites.
What it means for marketers today
Separate seasonal changes from update impact by comparing year-on-year as well as period-on-period.
Related
See the full Google Algorithm Update History (2003–2026)