For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Dropbox - Online Sync and File Sharing
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
Google Drive - Access and sync your files anywhere
KeyCDN - KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.
Mega - Secure File Storage and collaboration