Google released its December 2025 core update on December 11, and it finished rolling out yesterday (December 29). This has been the third core update of 2025, following previous rollouts in March and June. Google’s Search Central LinkedIn feed notes that this is “a regular update designed to better surface relevant, satisfying content for searchers from all types of sites”.
What are core updates?
They are broad changes that Google makes to its search ranking systems to improve how well results match what people are looking for. They are not aimed at specific websites or individual pages, and they do not set out to “penalise” sites. Instead, they reassess content overall so that pages that are more relevant, helpful, and trustworthy may rank higher over time.
When a core update rolls out, some sites may experience ranking changes because Google reevaluates content in relation to other content on the web. A drop in rankings does not necessarily mean something is wrong with a site, and recovery often depends on making sustained improvements that genuinely help users, rather than applying quick technical fixes.
How do core algorithm updates work?
Core updates commonly involve changes such as:
- Reweighting different signals so that some factors matter more and others matter less than before.
- Improving how search systems understand user intent, meaning what someone is really looking for when they search.
- Refining how relevance is assessed, especially where many pages appear similar on the surface.
- Updating models that help Google evaluate content quality, reliability, and overall helpfulness.
What should website owners affected by a core update do?
The most important thing is not to chase or react to a core update in a panic. With these types of updates, Google is trying to improve search results for users, not single out individual websites or businesses. For most site owners, the healthiest long-term approach is to focus on creating content that genuinely helps people, rather than trying to second-guess how the algorithm works.
Core updates also highlight the importance of quality in a broad sense. This includes publishing clear and accurate information, demonstrating real experience or knowledge on a topic, and making it easy for visitors to trust what they are reading. Small technical tweaks or short-term fixes rarely make a meaningful difference after a core update, because the changes are about overall evaluation, not isolated issues.
Website owners should understand that recovery, if it is needed, often takes time. Improvements are usually recognised gradually as Google reassesses content over a longer period, sometimes not until a future core update. Focusing on consistency, usefulness, and long-term value is far more effective than making rushed changes in response to short-term ranking movements.
My experience of this update
I look forward to core updates by Google, as I often see positive changes for clients that I have been working with over the long-term. I work with a lot of clients that fall under Google’s YMYL category (such as lawyers and dentists), and my work helping these businesses to improve the trust signals around their domain usually pays off. You can view some of my case studies here.
Have you been affected by the December 2025 core update?
If you are worried about a loss of visibility following this update and would like some independent advice regarding your website, feel free to send me a message and arrange a video call.
0 Comments