The present study examines the perception of congruent and incongruent signals regarding corporate social responsibility (CSR) on employer rating platforms, taking into account signalling theory. The aim of the study is to explore the influence of CSR-related signals on job seekers' perception of employer attractiveness, application intention, CSR-based credibility, and CSR value congruence. For this purpose, an experimental design with two stimuli was applied in the form of a quantitative online survey with 85 respondents, aged 20 to 44, who use employer rating platforms. Participants were divided into two groups and exposed to fictional employer reviews that either aligned with or contradicted the company's CSR claims. Specifically, respondents demonstrated a reduced perceived attractiveness of the employer, a reduction in application intentions, a lower perceived value fit, and a reduction in the credibility of the company's CSR commitment when CSR signals were inconsistent compared to consistent signals. The study concludes that consistent CSR information significantly improves job seekers' perception of potential employers across all measured constructs, highlighting the importance of an honest approach to CSR practices. These findings are relevant for both future research and businesses, as they illustrate the opportunities and risks of inconsistent CSR communication.