With an ever-increasing measurement of pupil and school performance and presence of resultant statistical tables and indicators, parents are faced with a sometimes overwhelming plethora of data and information when monitoring the performance of their children’s present or prospective school. The authors are part of a company that has developed a parent/carer-accessible site to attempt to address issues and needs for parents/carers. Anecdotal evidence indicates that a single portal where parent/carers can find all the relevant data about schools in England would be an invaluable tool for monitoring and choosing a school. It was decided that such a site would be built around a National Single Indicator (NSI). The indicator is formed from an amalgam of expected progress measures: the main threshold level; pupils’ average points score; and the value added measure. By changing the weight attributed to each of these measures, the website allows parents to modify their relative importance according to the value they place on them. This dynamically alters the overall result to give users their own “personal indicator”, which means they can compare schools in a list tailored to their own specification.