Varnish

Varnish is a high-performance HTTP accelerator and reverse proxy designed for content-heavy dynamic websites and APIs. It caches content in memory to serve requests faster, reducing load on backend servers and improving scalability. It is widely used as a caching layer to enhance web performance and handle high traffic efficiently.

Also known as: Varnish Cache, Varnish HTTP Accelerator, Varnish Proxy, Varnish Software, Varnish Cache Server

Why learn Varnish?

Developers should use Varnish when building or maintaining high-traffic websites, e-commerce platforms, or APIs that require fast response times and reduced server load. It is particularly valuable in scenarios where content is dynamic but can be cached, such as news sites, social media feeds, or product listings, to handle spikes in traffic and improve user experience.

Learning Resources

• docs: Varnish Cache Documentation
• tutorial: Varnish Tutorial for Beginners
• course: Varnish Cache Course on Udemy
• video: Varnish Explained - YouTube Video
• book: Book: Varnish HTTP Cache