06-16-2020, 08:49 PM
@hamed To be honest. I'm actually glad you're not finding a high speed Internet for uploading files to your VPS. I'm crossing my fingers that the sponsor fire wall filters don't interpret the bulk uploading as "abuse". 
I totally agree with the other members, but am also wondering whether possibly it's not DNS you're thinking about but caching. Some DNS operators like Cloudflare use caching to speed up the downloading of files (provided you're close to a Cloudflare DNS Hotspot it may have the appearance of faster - if not close to a hotspot it may even be slower). It doesn't have an effect on uploading though. And for the purpose that you have in mind it won't have any effect at all.
I totally agree with the other members, but am also wondering whether possibly it's not DNS you're thinking about but caching. Some DNS operators like Cloudflare use caching to speed up the downloading of files (provided you're close to a Cloudflare DNS Hotspot it may have the appearance of faster - if not close to a hotspot it may even be slower). It doesn't have an effect on uploading though. And for the purpose that you have in mind it won't have any effect at all.