Brand and security signals
RWE is a long-established German energy group with operations across conventional power, renewables, and trading. The domain has been registered since 1996, which is a meaningful longevity signal, and it uses HTTPS with an organization-validated certificate from GlobalSign. Those factors are consistent with a mature corporate web presence rather than a high-risk or disposable domain.
Reputation and verdict
RWE is a widely recognized utility and energy brand in Europe, so the overall trust profile is stronger than that of an unknown commercial site. The visible signals do not eliminate normal corporate-website caution, but they do reduce concern: the age of the domain, the established registrar, and the SSL setup all support legitimacy. On balance, rwe.com appears credible and low concern for general use.