On June 30th, 2025, at approximately 10:37 am ET, Google officially rolled out its June 2025 core update. While immediate impact was minimal, by July 2nd the first noticeable waves of ranking shifts have started to appear. It’s still early days, and the fluctuations are likely to become more evident over the coming days as the rollout progresses.
Typically, core updates don’t make their presence felt the very moment they’re announced. Instead, most sites and SEOs begin to detect changes within the first few days. Although many SEO professionals haven’t reported major effects yet, several monitoring tools are already registering signs of ranking volatility linked to this update.
Industry expert Glenn Gabe was among the first to identify movement in the search results. He shared observations on X, noting that some websites are already experiencing gains or drops. I’ve pulled together the main points for you below.
Unlike the usual two-week rollout schedule, Google has indicated this core update will take around three weeks to complete. So if you haven’t spotted any shifts yet, don’t assume you’re in the clear—more changes are likely to surface soon. Also, keep in mind that volatility seen around the previous weekend may not be tied to this core update, so interpret your analytics carefully.
What’s Happening in the Data?
Tracking Tools Picking Up Activity
A number of rank-tracking platforms have begun detecting increased fluctuations as of this morning. Not every tool is flagging activity yet, but several are clearly showing early volatility. If you rely on one of these tools, now is a good time to review your site’s data and see if you’re affected.
SEO Community Reactions
Glenn Gabe reported seeing significant surges and declines while analyzing visibility data from approximately 4,000 websites spanning different industries. He also noticed shifts for multiple client sites whose reporting is already reflecting changes.
He further mentioned that some domains appear to be recovering after the recent instability he’d observed in previous weeks. Glenn emphasized that Google has repeatedly stated core updates begin only once they are formally announced. Any ranking movement beforehand likely stems from separate updates or adjustments, such as tweaks to review-related algorithms—something he suspects may have happened in the prior week.
Looking ahead, Glenn anticipates even more pronounced ranking movement over the next couple of days. So stay alert—this core update is just getting underway.