Content delivery network (CDN) are the transparent backbone of the Internet in charge of content delivery.
Whether we know it or not, every one of us interacts with CDNs on a daily basis; when reading articles on news sites, shopping online, watching YouTube videos or perusing social media feeds.
No matter what you do, or what type of content you consume, chances are that you’ll find CDNs behind every character of text, every image pixel and every movie frame that gets delivered to your PC and mobile browser.
To understand why CDNs are so widely used, you first need to recognize the issue they’re designed to solve.
Known as latency, it’s the annoying delay that occurs from the moment you request to load a web page to the moment its content actually appears onscreen.
That delay interval is affected by a number of factors, many being specific to a given web page. In all cases however, the delay duration is impacted by the physical distance between you and that website’s hosting server. A CDN’s mission is to virtually shorten that physical distance, the goal being to improve site rendering speed and performance.
What CDN does for your business:
Modern CDNs can handle numerous IT tasks, helping you to:
Block spammers, scrapers
and other bad bots
Localize coverage without
Load balance between
Protect your website from
Secure your application
Still, most websites tend to operate on a larger scale, making CDN usage a popular choice in the following sectors:
- Media and entertainment
- Online gaming
- Higher education
Web application firewall (WAF)
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