On one website/WordPress blog, media is uploaded inside directories and then rendered on a page. Quite fifteen pages become very bulky when GIFS and images are there on a page.
Some blogs suggest hosting images/media on sub-domains and then embedding them from there in a page as this will increase resources and the page when downloaded will download information from more than one resource(Domain + SubDomains).
Opinions also state that browsers have a limit to downloading information and rendering from just one resource. but the efficiency is enhanced when more than one resource is available.
It is requested from other experienced experts share their experience and wisdom.