- 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*
Adobe Acrobat Cloud	2 GB	US	wrapper	-
Alibaba Cloud / 阿里云	5 GB | 5 GB/mo	China	direct	Iran, Russia, Sri Lanka, Turkey
AsusWebStorage / 華碩雲	5+ GB	Taiwan	wrapper	China
BackBlaze (B2 Cloud Storage)	10G | 1GB/day	US	direct	China, Iran, Russia, Sri Lanka, Turkey
CloudMe	3 GB	Sweden	native	-
DropBox	2 GB	US	native	China
Google App Engine	5 GB | 1 GB/day	US	direct	China
Google Drive	15 GB	US	native (≤100MB)	China
Google Photo (video only)	(High Quality) * before June 1 2021	US	wrapper	China
MediaFire	10 GB	US	wrapper	-
Microsoft OneDrive	5+ GB	US	native	China, Iran, Russia, Sri Lanka, Turkey
uHubPlus™	2 GB	Hong Kong	wrapper	-

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