A content delivery network (CDN) refers to a geographically distributed group of servers which work together to provide fast delivery of Internet content. A CDN allows for the quick transfer of assets needed for loading Internet content including HTML pages, javascript files, stylesheets, images, and videos.

It is not necessary that every website should use a CDN. For instance, if you are targeting visitors from a specific location or country only, you should prefer hosting your site on a server located as close to that desired location as possible. In this case, having a geolocated web host is better than having a geolocated CDN.

Similarly, if you just need a CDN to protect your website from bad trafic & DDos Attacts then investing in a dedicated security solution such as Sucuri might be a wiser choice too. Of course, Content Delivery Networks such as Cloudflare focus heavily on security, but investing in a CDN purely for the sake of security is not a very plausible option.

Why Is CDN Necessary for your Website?

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If a user who lives in Nepal may visit a site that’s supported by a Sydney-based web host. If this website has a CDN somewhere close to Nepal, the user is granted access to the site from his or her edge server (the lowest server to his or her location) and the request no longer has to go all the way to Sydney to get a response.

High Traffic ?

Regular servers have difficulty handling traffic spikes. CDNs counter this because hey can evenly distribute the traffic.

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Are static content and huge files impacting your site?

Things that involve CSS, large images, scripts, and other heavy elements can all contribute to latency. This proves to be very true to websites that contain plenty of videos and pictures. If you run a news site or an e-commerce business, a CDN can smoothen the whole process for your brand. Other businesses such as travel agencies, financial institutions, and government groups also find CDNs to be extra helpful.

Do you have a growing worldwide audience?

If you’re noticing more users visiting your site from different countries—or maybe even just one—it could be time to work with a CDN provider.

If you are getting high traffic on your website and your servers having difficulty handling traffic spike then CDN can be a best solution for you. Also, CDN protect your website from DDoS Attacks and often filter the bad traffic by implementing Captcha as well.