You've got enough rebuttal on your doubt of Azure. But another issue with this comment is this: > in RackSpace and AWS As far as I can tell, they moved off R

You've got enough rebuttal on your doubt of Azure. But another issue with this comment is this: > in RackSpace and AWS As far as I can tell, they moved off RackSpace a long time ago. And they only use AWS infrastructure for peering, which makes sense with the amount of AWS machines that pull code from Github. The majority of the heavy lifting is done in Github's own data centers: https://githubengineering.com/evolution-of-our-data-centers/ https://githubengineering.com/evolution-of-our-data-centers/