As dial-up connections are limited in speed by the Federal Communications Commission, the service does not actually increase speeds, but pre-fetches HTML markup, JavaScript and other small files and compresses them.
As dial-up connections are limited in speed due to Shannon's Law, the bandwidth inherent in a DS0 channel, and protocol limitations of 56k modems, the service does not actually increase speeds. Instead, the service pre-fetches HTML markup, JavaScript and other small files and compresses them.