Core concepts

This section provides detailed technical explanations of the concepts that underpin the way Fastly works.

IMPORTANT: We're still expanding this section, so if you don't find what you need here, you may have more luck with the wealth of information provided by the higher level guides in our documentation site. We welcome your comments and suggestions for information you'd like to see here, and you can contact the developer hub team using the Feedback button on any page of the site.