How can caching improve website performance?

Caching is a crucial technique for enhancing website performance. . Here are several key ways caching improves website performance: Faster Load Times: Cached content can be delivered to users much faster than generating it on the fly. This reduces page load times and improves the overall user experience. Reduced Server Load: Caching offloads the web server and database server by serving cached content directly to users. This lowers server resource usage and helps your website handle more traffic without performance degradation. Lower Latency: Cached content is typically served from a location closer to the user, such as a Content Delivery Network (CDN) or edge server. This minimizes network latency and further speeds up content delivery.

Server caching is one of the simplest ways to implement caching in your backend application. You are only limited by the available RAM if you want to cache values on the same machine. Alternatively, you can use an external caching service like Redis, which can scale independently from your application server.

In my opinion caching techniques improves the availability of data that required a frequent access as well as the data that require some computing timing to perform are generally stored in cache The better use case I would suggest the leader board on leet code that display top 10 out performing candidates . This data can be stored using caching techniques every time this does not be re calculated and sorted set in redis help us with automatic sorted of the data.Session can also be achieved via caching technique. Website performance regard to cache techniques has so many way either you can calculate the performance of the user interface or the business

CDN simple and short explanation: A CDN is like a bunch of mini storage units scattered everywhere, each with a copy of your stuff. When someone far away wants to access your site, they get the data from the nearest unit instead of traveling to your main server. CDN not only speeds the website up but also balances the load, so the server can be always up with zero downtime.

**Bridging Worlds with CDN Caching: The Netflix Way** Imagine a world where your favorite cafe has branches in every neighborhood. No matter where you are, your preferred coffee is just a short walk away. Similarly, Netflix positions its 'cafes' (servers) at major ISPs worldwide, ensuring top titles are brewed locally for viewers. Through CDN caching, like Cloudflare or AWS CloudFront, content is served with reduced latency, making every sip just perfect. It’s about bringing what users love, closer to home.

Navigating the vast digital seas, web applications, like seasoned sailors, require a trusty treasure chest to swiftly access their important assets. Think of application caching like local storage as this treasure chest, storing assets like images, ready to be accessed without a long voyage to the server first. This will ensure a smoother, more hasty journey to the promised land, where our user's all want to eventually end up. Quick and easy way to get started - A simple service with a map of all the assets and their file location can be used to achieve this. Add a cache version which can be updated when assets change so that you can then employ a cache busting function which checks if the cache needs to be cleared.

Today's databases are high-speed when accessing values by key, so you can effectively use the for caching. The excellent idea is to compute expensive values and store them in a specific table, where you can easily retrieve them by key. If you frequently query this data from a database, the results can be cached by the Database server which further improves performance.