The March 2026 Core Update was announced on 27th March 2026, following the brief March Spam Update. It is scheduled to take two weeks (until approx. 10th April). It comes not only in the wake of the spam update but following generally high movements in SERPs. Data, analysis, and rankings of the affected domains will be added to this article as the information becomes available.
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- Google’s status page for the Core Update Start date: 27th March 2026. Expected to run for two weeks.
- For detailed information and data on all previous Google updates, see the SISTRIX update tracking page
- Information from Google on Core Updates about these broad changes to search algorithms and systems.
The last Core Update was in December 2025 when there were high levels of activity.
SISTRIX Google Update and Feature Update Radar
The daily view on SERP updates can always be viewed in our Google Update Radar which shows the current level of movement relative to the last 90 days. The radar graphics are an indicator of SERPs changes across 1 million SERPs every day. Graphs for UK and US are shown below:
The feature radars are also important to watch as these can show changes in the distribution of Google SERP features which, in turn, can have an impact on clicks going to websites.
Data and Analysis
The SISTRIX Update radar has shown large amounts of background change in recent weeks but using our extended daily data we will be able to view the domains that have risen or fallen significantly during the Core Update when data is available.
