Since the introduction of the concept in the late nineties, Internet addiction has been a growing phenomenon becoming a public health issue that cannot be ignored nowadays. Focusing on adolescents, previous research has analyzed the prevalence of excessive Internet use and determined several predictors such as socio-demographic characteristics, personality traits or emotions. To move on this topic, this paper draws attention to the relationship between parents and their children. Using a nationally representative sample of 37,486 students aged 14-18 years old in Spain, an under researched European country, this study finds that care received from parents [B =-0.141, SE =-0.033] and parents' knowledge about where [B =-0.065, SE =-0.032] and with whom [B =-0.232, SE =-0.032] the adolescent is while he/she goes out at night are associated with lower levels of excessive Internet use. In turn, fixing clear rules does not help reduce excessive Internet use. These results, together with the influence of other control variables, offer important insights and implications to prevent adolescents from excessive Internet use.