What is Content Delivery Network (CDN) ?

A content delivery network (CDN) speeds up delivering pages, videos, and other content to the website’s visitors. A CDN is often used for retail and e-commerce websites, Amazon Web Services and other public clouds, and web-based applications with high traffic, streaming content and interactive media, or a global audience. Depending on the visitor’s geographic location, the origin of the web page, and the CDN’s nearest server, a CDN uses a system of distributed servers to send web pages and related media to a website visitor quickly. CDNs help websites deal with sudden or high spikes in traffic and provide content soon to visitors.

The CDN’s operations are almost invisible to your site’s visitors. If the delivered URL varies from the requested URL, a visitor may not know whether a CDN has provided a website’s content.

Why use CDN?

  1. Faster Content Delivery: Site efficiency is the primary reason e-commerce, retail, media, and other companies use CDNs. A CDN ensures that website content is delivered quickly and with minimal latency. A CDN is particularly beneficial for streaming video sites because it decreases or removes jitters.
  2. 100% Content Availability: CDN-enabled websites have 100 percent content availability, even in the event of network failures, hardware failures, or power outages, because their content is stored on multiple servers across multiple geographic regions.
  3. Increases Visitor Capacity: A website that uses a CDN can easily accommodate an unforeseen spike in traffic because the CDN’s distributed network of servers provides additional network carrying capacity.
  4. Improved website analytics: Additional website analytics, such as the popularity of the site’s content, real-time load statistics, asset viewing information, and other data, is provided by CDN providers to their customers. The CDN and the customer can fine-tune and enhance asset delivery control with this knowledge.