Yes, certainly, please!
You can link directly to Genealogy Online with address https://www.genealogieonline.nl/en/
Below is a snippet of HTML you can copy:
<a href="https://www.genealogieonline.nl/en/">Genealogy Online - search for your ancestors and publish your family tree</a>
If you want to add a picture you can choose from the pictures below:
https://static.genealogieonline.nl/img/logo72x72-en.png
https://static.genealogieonline.nl/img/go/logo200x200-en.png
More information can be found on the Genealogy Online brand page.