"All three clouds" is such a weird phrase.
There is no "cloud". There is other peoples hard drives.
But let's pretend the "clouds" you use are "clouds". Ok. What makes the other hosting providers not "clouds"? Bit of a no true Scotsman.
There is no "cloud". There is other peoples hard drives.
But let's pretend the "clouds" you use are "clouds". Ok. What makes the other hosting providers not "clouds"? Bit of a no true Scotsman.