How does a content delivery network CDN work in the cloud

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I’m setting up a website and heard that a CDN can improve performance. Can you explain how a content delivery network works in the cloud to achieve this?

Nov 18 in Cloud Computing by Priyanka
• 4,500 points
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1 answer to this question.

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Here's the explanation in concise points:

Step 1: Caching Static Content

  • First-time user request goes to the origin server.

  • The origin server processes and sends the content to the nearest CDN edge server (POP).

  • The edge server caches the content for future use.

  • For subsequent requests, the edge server directly delivers cached content, reducing latency and load on the origin server.

Step 2: Dynamic Acceleration

  • Dynamic content (user-specific) cannot be cached.

  • The CDN forwards dynamic requests to the origin server using an optimized connection.

  • Intelligent routing and geographic proximity help reduce delays and speed up the connection between the user and the origin server.

Step 3: Edge Logic Computations

  • CDN servers can handle tasks like:

    • Modifying user requests.

    • Validating incorrect requests.

    • Optimizing content before delivery.

  • Offloading these tasks to edge servers reduces the origin server's workload, improving website performance.

Check here to learn more about GCP.

answered Nov 20 by jaanu

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