Hmm, good one. Never thought of that. The non-www url was not redirecting to the www-domain.
I now made a change in my .htacces that redirects non-ww to www;
RewriteCond %{HTTP_HOST} ^mtbtrails.nl [NC]
RewriteRule ^(.*)$
www.mtbtrails.nl/$1
[L,R=301]
And that seems to work. Thanks for your help!
Pascal
