Research on pornography use has yielded many insights into usage patterns, differences, and predictors thereof. However, as almost all of this research has been based on self-reports in survey studies, several researchers have questioned the reliability of some of the findings as they may, e.g., be biased by social desirability. Following a recent call to make use of more reliable data sources, we conducted two studies two investigate patterns and differences as well as predictors of online pornography use (OPU). In our first study, we used data from a large scale German online web tracking panel data (N = 3018, website visits on domain level) gathered from June 2018 to 2019. We looked at group differences as well as temporal trends. Overall, our results confirm existing findings from questionnaire-based research related to sex and age differences. Our data also shows temporal patterns which indicate that, for the majority of users, OPU constitutes a form of leisure time activity that competes with other media-based spare time activities. In our second study, we linked the web tracking to data from an online survey (N = 1315) to reassess the relevance of various predictors of OPU that have been identified in previous research. As in Study 1, our results overall echo previous findings. Online pornography is used more by males and younger individuals, while relationship, sexism, and social dominance orientation are not associated with OPU. However, we do find differences in OPU between members of different religious communities. With our two studies, we were able to confirm some key findings on OPU from previous questionnaire-based research using web tracking data, while also being able to engage in more fine grained analyses of usage patterns.