Videos

We’re happy to share our knowledge. In these videos, we’ll guide you through SEO, GEO and AI search engines, from practical explanations to real-life customer case studies.

Digital PR case study: Vaarbewijs.nl

How can you measure your GEO results for free?

Reliable AI and LLMs: strategy, transparency and trust

How LLMs and RAG are fundamentally changing search behaviour

The customer journey is changing: LLMs and the ‘Messy Middle’ explained

The zero-click era: why SEO is no longer about clicks

Any questions?

Do you want to know more about SEO? Could your website use a new boost?
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This is us!

A team of SEO specialists

Our team consists of enthusiastic SEO specialists who are happy to work with you for the best results.

Meet our team
SEO agency Onder

Read our testimonials!

Renzo van Dongen

Renzo van Dongen

Digital content manager Peugeot

Whether it's about content or technical adjustments, it doesn't matter. Martijn briefs this in a very clear way so that it can be implemented locally or by our head office in France. [...] Since the start of our collaboration, we have achieved great results. Keep it up!

A businessman in a tuxedo with a green bow tie, but with a caption and an event backdrop.

Felix Noordberger

Algemeen Directeur

Onder helps us with our organic search visibility, both via SEO and via GEO. They look at how we can maintain our visibility in search engines using Kitcentrum and, increasingly, in AI-generated answers as well. They have already demonstrated their capabilities during previous changes to our URL structure. We did not lose any rankings and, in fact, saw our visibility improve. That gives us confidence. Now, Onder is helping us prepare for our replatforming. We are fully confident that they will guide us effectively through this transition and manage to retain our organic rankings as much as possible.

Marten Stellingwerf

Webmaster

Martijn and Mariska make the SEO story understandable for the layman and are happy to think along with us. It is nice that there is a personal contact moment every month with an extensive report and the opportunity to discuss everything. After just a few months, Onder has already managed to achieve number 1 positions on Google with some of our webshop pages. We are very satisfied with Onder.

Mark Prummel

SEO Specialist Stella Fietsen

For several years, Onder has been a valued partner of Stella. Martijn is my sparring partner for complex SEO issues and the extra pair of critical eyes that keeps us on our toes. Together, we have achieved nice growth in online visibility, visitor numbers and leads. Onder stands out for its short lines of communication and professionalism. They speak our language: don't nag, get down to business. That is what we love!

OnderBouwing

Don't mis a single SEO tip
  • Insights on SEO
  • For beginners and advanced specialists
  • From experiments to developments at Google and from
    best practices to our own cases
  • A look behind the scenes at SEO company Onder

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