This establishes a secure, encrypted connection between your browser and the host server. When the colon and slashes are missing, browsers treat the string as a text search query rather than an address.
Sharing on MEGA is link-based. When a user uploads a file, an encrypted link is generated. Anyone with this link can access the content, provided they have the accompanying decryption key. This process gives the link holder the ability to download or view the shared data without needing a MEGA account.
