SINGAPORE

NewMediaExpress
Ookla

M1 ( M1 users only )
Starhub ( Starhub users only )

MyRepublic - Blank Page
SINGNET - Forbidden Page
SGIX ( 8 tests per day ) - IP Address not found
ViewQwest - 404 Error

USA

50Mb Test File
100Mb Test File

OTHERS

DigitalOcean ( Worldwide )
Optus ( Sydney, Brisbane, Melbourne, Perth ) - Redirected to Ookla