What are the challenges to delivering content?

There are some challenges to delivering content. We described a few important challenges regarding Content Delivery Networks.


An explosion of devices and network types


With 13.4 billion connected devices worldwide today – a number expected to triple by 2020(http://www.juniperresearch.com/press/press-releases/iot-connected-devices-to-triple-to-38-bn-by-2020) – the Internet must support an increasingly diverse set of interactions, from web and mobile to wearable tech, machine-to-machine, and Internet of Things. Optimizing interactions across a fragmented device marketplace and continually changing contexts is a complex task for the Internet of today – and becoming even more complex for the Internet of tomorrow.


Richer and more sophisticated content


In the last three years alone, web page weight has doubled(http://httparchive.org/trends.php?s=All&minlabel=Nov+15+2012&maxlabel=Nov+15+2015#bytesHtml&reqHtml) and websites are employing richer and more sophisticated media, stylesheets, JavaScript, and third-party APIs in order to create the engaging experiences users of today expect. If the content delivery technology underlying these advancements does not evolve, these richer, heavier pages will be slower as well. Similarly, the rising availability of last-mile broadband and HD devices continues to raise the bar on video quality, so companies may expect video capacity requirements to grow 5-10X within the next few years.


Evolving protocols and formats


As the Internet continues to grow well beyond its original intentions, some of its fundamental protocols have had to evolve to keep up. Over the years we have seen IPv6, TLS, and DNSSec – among others – introduced to address existing shortcomings, while changes such as HTTP/2, new video and image formats, and evolving streaming protocols are happening now. In each case, the transition can take years if not decades to complete, and in the meantime, uneven support across browsers and devices can make it challenging to deliver optimal and error-free user experiences consistently.


Attacks of increasing scale and sophistication


As online data and transactions increase in value, websites and other online assets are becoming the target of larger, more complex, and more frequent attacks. For example, reflection techniques have enabled DDoS attacks to grow by an order of magnitude, and these DDoS assaults are now often used as diversionary cover for more insidious breaches aiming at data theft or site alteration. Some have estimated that by 2019, cybercrime will cost businesses $2.1 trillion globally, roughly four times the annual estimated cost today(http://www.securitymagazine.com/articles/86352-cybercrime-will-cost-businesses-2-trillion-by-2019).

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