Web Development Intermediate

What is Caching?

Storing copies of frequently accessed data in faster storage to reduce load times and server processing.

Caching stores computed results or fetched data for quick reuse. Types include browser cache (assets), CDN cache (edge content), application cache (computed data in Redis/Memcached), and database cache (query results).

Cache headers (Cache-Control, ETag, Last-Modified) control browser caching. Cache invalidation — knowing when to update cached data — is famously one of the hardest problems in computer science.

Learn More About This Topic

JavaScript ES6+ Modern Features

Related reading

JavaScript Fundamentals

Related reading

Laravel Framework Fundamentals

Related reading

Related Terms

Web Caching Strategies

Techniques for storing copies of web resources at various levels to reduce server load, bandwidth, and response times.

JavaScript Object Notation — a lightweight data interchange format that is easy for humans to read and machines to parse.

A high-performance RPC framework using Protocol Buffers and HTTP/2 for efficient service-to-service communication.

A query language for APIs that lets clients request exactly the data they need, reducing over-fetching and under-fetching.

Server-Sent Events (SSE)

A web technology enabling servers to push real-time updates to browsers over a single HTTP connection, simpler than WebSockets.

API (Application Programming Interface)

A set of rules and protocols that allows different software applications to communicate and exchange data.

View All Web Development Terms →