MindMyHouse does not physically match home owners with house sitters. Rather we provide our members with all the online tools they need to find each other. You will find that none of the free (for home owners at least) online house sitting websites offer any kind of matching or checking service. Hence the price!
Our members are able to set up email alerts that notify them when there is a match between house sitters' nominated countries and the locations of house sitting assignments. You're also welcome to search the site at any time of the day or night to find that promising listing you've been looking for. Good luck!