AI engineering glossary · Web APIs HTTP
What is caching?
Caching (also called HTTP caching): Storing a copy of a response so later requests can be answered without repeating the work or the network trip. HTTP defines headers to say who may store a response and for how long. It cuts latency, cost and server load.
Caching: an example
A client stores a country list for 24 hours instead of requesting it on every page load.
Related terms
More Web APIs HTTP terms
Where you learn it
Caching is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.