Hearthis.at is a music streaming and selling platform that's been active since 2013. For a site where users upload their own tracks and even sell them directly, trust matters. The good news: it has a legal Impressum (the required EU business disclosure), a privacy policy, and terms of service. That's the kind of paperwork you'd expect from a legitimate operation. Its long web history and clean security record back that up.
What's less reassuring is the lack of a visible contact page or about page. You can find the company's legal address in the Impressum, but if you need to ask a question or report a problem, there's no obvious link. That's unusual for a platform that handles user accounts and money. Also, the site still accepts old TLS 1.0 and 1.1 connections, which is a minor but unnecessary security risk.
Overall, hearthis.at reviews from real users are generally positive, and the site's infrastructure looks solid. If you're a musician looking to share or sell your work, it's likely fine. Just know that getting support might take some digging.