Traditionally, why has it been better to serve site assets from multiple domains?

Last Updated on December 6, 2015

Keeping images and assets on a geographically dispersed CDN allows for faster resource requests by reducing round trip time. It also leverages “domain sharding” benefits – which means rather than loading from a single domain, browsers actually load faster when requesting resources from several domains by allowing each domain connection to download up to the maximum allowed – 6 concurrent downloads.

More info: Quora and MaxCDN.