When using Uloz.to or any similar file-sharing platform, keep these best practices in mind:
To begin using the service, visit the official Uloz.to website and choose a plan that fits your needs: : Offers 25 GB of complimentary storage space. ulozto.net english
This is a nuanced question. The website itself is legal under Czech law because it complies with the "safe harbor" provision of the EU Copyright Directive. Ulozto does not host illegal content; users do. When a copyright holder sends a DMCA notice, Ulozto removes the file. When using Uloz