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How Does a CDN Work?

  1. Content Distribution: The CDN copies and distributes your website's static and dynamic content (such as images, CSS, JavaScript, and videos) to multiple servers worldwide.

  2. Caching: Cached copies of your content are stored on the edge servers, reducing the need for repeated requests to the origin server. This minimizes latency and accelerates content delivery.

  3. Load Balancing: CDNs use load-balancing algorithms to distribute user requests across multiple servers, ensuring optimal performance and preventing any single server from becoming overwhelmed.

  4. Security: CDNs often include security features such as DDoS protection, Web Application Firewalls (WAF), and SSL/TLS encryption to enhance the security of your website.

Benefits of Using a CDN:

  1. Improved Loading Speed: By serving content from servers closer to the user, CDNs significantly reduce page load times.

  2. Enhanced User Experience: Faster loading times lead to a better user experience, resulting in lower bounce rates and increased user engagement.

  3. Global Scalability: CDNs enable websites to handle traffic spikes and scale globally without compromising performance.

  4. Reduced Server Load: Caching and load balancing mechanisms decrease the load on the origin server, improving its efficiency and reliability.

In summary, a CDN is a crucial infrastructure for websites and applications seeking to optimize performance, enhance user experience, and ensure seamless global scalability.

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