Google announced the June 2025 core update on June 30 and marked it complete on the Search Status Dashboard on July 17, 2025, after 16 days and 18 hours. It was the second of three core updates in 2025, following March and preceding December. Google described it to Search Engine Land as "a regular update designed to better surface relevant, satisfying content for searchers from all types of sites".
Third-party data suggests it was anything but routine in size. In Search Engine Land's roundup of ranking data providers, Similarweb rated it the most volatile core update since August 2024, with volatility peaking around July 11, and Semrush found over 16 percent of URLs in the post-update top 10 had not ranked in the top 20 beforehand, its biggest such number in four years. Coverage also noted partial recoveries for some sites hit by the September 2023 helpful content update and by the March 2025 core update, though recoveries were far from universal.
If your site moved in the June 30 to July 17 window, Google's standing guidance for core updates applies: audit the pages that lost visibility against the self-assessment questions in the core updates documentation and invest in overall helpfulness; meaningful recovery typically registers at a future core update. Our recovery guide covers the sequence.