Google Core Update March 2025: what you need to know + 7 smart SEO tips

Written by Jamie Schelling
Digital Marketing & AI Automation
In March 2025, Google rolled out another major Core Update. As with every update of this size, we see movement in the search results: some websites rise, others lose ground (temporarily). But what exactly has changed? And more importantly: what can you do to respond wisely?
In this article you can read what this update means and get practical SEO tips to strengthen your online visibility.

What is a Google Core Update?
A Core Update is a large-scale adjustment to Google's algorithm, with which the search engine tries to make search results even more relevant for users. The aim: reward valuable, reliable content with better positions.
The March 2025 update focuses strongly on:
- Content quality and relevance
- User experience (UX)
- Expertise and reliability of sources
A Core Update reshuffles the search results. That means pages can rise or fall, without there necessarily being any errors or penalties.
Important to know:
- Fluctuations in rankings are normal with a Core Update.
- The update is not a correction of mistakes, but a change in how Google assesses value.
- Sites that already invest in sustainable SEO (such as valuable content, UX and E-E-A-T) are generally in a stronger position.
Updates like this confirm the importance of long-term SEO. It's not about tricks, but about consistently delivering value to your target audience.
What are the effects of this update?
What does this update mean for SGE?
With the introduction of Search Generative Experience (SGE) we see a new dimension in how search results are presented. Google is experimenting with AI-generated summaries above the standard search results.
To stay visible here too:
- Write clear, structured content with direct answers.
- Use formats such as FAQs, lists and paragraphs with clear headings.
- Structured data helps you get included in generated blocks.
SGE is still in development, but content that matches user intent well is becoming increasingly valuable.
7 tips to strengthen your SEO after the Core Update
1. Write for people, not for search engines
Make sure your content is clear, valuable and easy to read. Answer real questions.
2. Show your expertise (E-E-A-T)
Strengthen your online authority by making experience, reliability and knowledge visible.
3. Use AI smartly, but critically
AI can support content creation, but human nuance remains indispensable.
4. Update your content regularly
Current and relevant pages are more valuable to users and to Google.
5. Optimise for ease of use
Mobile friendliness, speed and clear navigation remain important.
6. Work with structured data
Structured data helps Google understand and present your content better.
7. Analyse and optimise based on data
Use Google Search Console to monitor changes in traffic and rankings.
In summary
The Google Core Update of March 2025 once again underlines that SEO is all about quality. Websites that invest in valuable content, good UX and reliable information are the most resilient to updates like this.
The arrival of SGE also shows that the search landscape is increasingly shifting towards direct, AI-supported answers. Those who respond to this wisely can increase their online visibility in several ways.
Want to talk about your SEO strategy? Or curious where your opportunities lie after this update? Get in touch with us.


