Are you sure that the Dutch version of your website is flawlessly written?
Why not let me take a look? You have nothing to lose and everything to gain! It often takes me only a few minutes to spot any typos or grammatical errors. If I can see them, your clients have probably seen them too.
How does it work? I will take a quick read through your website free of charge and will either congratulate you on a remarkably well-written site or point out the mistakes that jumped out at me. If errors are found, I can provide you with a quote for a more in-depth look at your entire website.