Updated on:
December 11, 2025
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by Momentic
This is Google's third official ranking systems core update of 2025 - the last one was in June.
Rollout complete!
Rollout in progress!
December 11, 2025
December 11, 2025
Rollout in progress!
Below you'll get tips on what to look for, how to respond on your website, and helpful resources to improve your website's SEO and UX as it relates specifically to this Google update.
This is what Google Search Console posted on LinkedIn when announcing this update: "Today we released the December 2025 core update to Google Search. This is a regular update designed to better surface relevant, satisfying content for searchers from all types of sites. We'll update our ranking release history page when the rollout is complete."
All websites, but especially websites with content created specifically to rank well in Google Search instead of being genuinely helpful to people.
1. Organic traffic trends, especially non-branded (Google Search Console)
2. Ranking flux & search visibility for high intent keywords (Semrush, Ahrefs, or similar)—look for ranking movements (higher or lower) for website content
3. Keep a close eye on your most valuable SERPs—look out for any changes in the content that is being ranked higher or lower than before the update
4. URL indexation trends (Google Search Console)
1. Check if the speed or E-E-A-T of your URLs could be a cause of traffic drops.
2. Make sure you haven’t deleted any pieces of content which were previously earning a high volume of organic search traffic.
3. Make sure your content that used to get traffic is still indexed.
4. Determine if significant changes have been made to your website structure or semantic HTML.
5. Prune your content to remove (or improve) unhelpful or non-unique pages. Monitor & track changes made to your website.
6. Track the changing relevance (perceived intent) of keywords related to your content.
Sometimes there's nothing you can do about traffic losses after a Core Update.
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