Major Google Search Ranking Volatility Spotted on June 28th
Saturday, June 28th, the SEO community observed a noticeable amount of ranking volatility with the Google Search results. While Google has not confirmed an update, there are various SEO tools and buzz within the industry that indicates something is happening.
This would be yet another unconfirmed update, accurately following the pattern of unconfirmed updates since the March 2025 core update. While Google says they would be more frequent with core updates, we still have not seen any other confirmed core updates in 2025.
Tracking tool activity
Multiple SERP tracking tools reported significant fluctuations that suggested the rankings took a big hit:
- Mozcast
- Sistrix
- Cognitive SEO
- SimilarWeb
- Accuranker
- Mangools
- Wincher
- Data For SEO
- SERPstat
- Algoroo
- Wiredboard (aggregator)
These tools together point to a large upheaval in SERP’s visibility across many sites, especially very noticeably on June 28th.
SEO Community Response
The chatter on forums, such as WebmasterWorld, blogs, etc., shows the chaos:
“Rankings change hour by hour. One day a spike; the next is gone.”
“Every time there are updates, my crawl rates are in the toilet. “
“My US traffic dropped overnight by 33 percent this week.”
“I’m even losing my featured snippets yet I comply with all you white hats.”
“Low volatility, but traffic just dies.”
Some SEOs are saying that this looks and feels like a major update, with a sweeping change to visibility, traffic, and site rankings, for even the white hats.