Google Launches the May 2026 Core Update
Google has started rolling out the May 2026 core update, the second broad core update of the year. It follows the March 2026 core update, which finished on April 8, meaning there has been barely six weeks between the two.
Google described it in its usual terms as a regular update designed to better surface relevant, satisfying content for searchers from all types of sites, and said the rollout may take up to two weeks to complete.
Why the Timing Is Tricky
This update landed in the same week as Google I/O, where Google announced major changes to AI Mode and the Search experience. That creates a genuine measurement problem. If your traffic moves over the next two weeks, it could be the core update, changes in how AI features are displayed, or both at once.
Sites still recovering from the March update also have less clean data to work with, because the two updates sit so close together.
What You Should Do
For now, monitor rather than react. Mark May 21 in your analytics and Search Console so you can separate this period cleanly later. Avoid major site changes during the rollout, because changing pages mid-update makes it almost impossible to tell what caused any movement.
Google’s advice has not changed: there is nothing new or special that creators need to do as long as they have been making satisfying content meant for people.
Update: the rollout has now finished, see our May 2026 core update completion coverage. If you need help reading the impact, our SEO team can set up clean tracking.
