- create direct download link embeded in email or instant messaging apps
 - large file sharing for web master to save storage & bandwidth
 - to improve reliability, wrap multiple-sources in single link, then validate source randomly, 
   in order to hack providers' download limit
 - multiple-sources skip blocked countries automatically (coming soon)

• Single Source
• Multiple Sources of a file

Supported Providers	Free cloud Storage | Bandwidth	Country / Region	Link Type*	Blocked by Country*
Google Drive	15 GB	US	native (≤100MB)	China

Link Type :
  direct  : permanent and don't show any web page, download directly.
  native  : native & permanent link generated by provider with landing page.
  wrapper : provider's link is not direct, so generate a permanent wrapper link for native download.

Blocked by Country/Region :
  Tested countries/regions : China, Hong Kong, Iran, Russia, Sri Lanka, Turkey
  Last test : 2020-04-08

Google Photo would make 1080p video files available within 24 hours