Google analytics provide a service to evaluate the use of a website to some extent; however, the possibilities are limited. It is, for example, not clear how many and to what extent professionals refer to the website. Nonetheless, google analytics show that a number of visitors found our website by using a link provided on the website of professionals. On the contact form it is mentioned that specific questions can and should be discussed with the health care provider. Until now, the contact form was only used to provide feedback on the website (as is indicated on the website); however, it is not clear to what extent people address preconception care with their health care provider due to information they read on the website. Although the page with information on folic acid is one of the most visited pages of the website, it is currently not clear to what extent folic acid supplementation is (more) successful. It would be of interest to monitor folic acid intake for example in birth registers.