How Does a CDN Work?

CDN is expandable to a content delivery network. It is a technology adopted to resolve the issue of latency. Consumers visit your website and request for some services. It is annoying for them to wait till your website pages’ upload and appear on their screens. The time gap from the moment a visitor sends their request till the time your server responds and delivers content is the crucial element. The primary reason for the delay is the physical distance between the visitor and your server location.

CDN aims to reduce this distance barrier. CDN server basically is a network of servers that are placed at different locations around the world. Your web pages are replicated and distributed across the servers. When a visitor requests for some content, it is delivered to them from the server closest to them. This brings down the latency issue and the customers get their content without any waiting.

CDNs are very useful if you have high traffic to your site. A slow website will keep visitors waiting and occupy your space making your site slower. With increasing traffic pressure, the server may crash making your website unavailable to your customers and they will go away to a competitor. If your website is fast, your visitors will come back to you with new requests.

Ultrasonic does not work

ultrasonic is sound beyond our hearing range and thus we cannot hear them.

There are several things that work with ultrasonic but asking "how ultrasonic work" is exactly like asking "how sound works".

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