CDN Infographic: What is a Content Delivery Network?

WHAT IS A CONTENT DELIVERY NETWORK? A Content Delivery Network (or Content Distribution Network) is a system of strategically positioned servers around the globe. The main goals of a CDN are about speed, scalability and high-availability. Each end user will automatically be routed to the closest POP. A point of presence (POP) caches the content. The web server maintains the original content. E ADVANTAGES OF A CDN { Performance Content is cached around the world. Shorter distance to users will not only reduce latency but also minimize packet loss. Scalability Offloading traffic to a CDN will make it easier to manage traffic spikes and scale up or down within a short time. Reliability Requests are always routed to the nearest available location. If one server is not available, requests are automatically sent to the next available server. Lower Costs A content delivery network requires less self-managed infrastructure and makes it easier to reduce costs. SEO Improvement Page speed is a key factor when it comes to page ranking. Most search engines consider the page loading time in their formulas. E HOW DOES PUSH VS. PULL WORK ( Every user has the option to choose either a PUSH ZONE or PULL ZONE РOP 8. STORAGE SERVER POP PULL ZONE: caches static content from the user's origin server and POP distributes it from a POP. User uploads content to the Push Zone. VS POP A PUSH ZONE allows uploading content directly to the CDN like a regular hosting account. The content is then synced out to all POPS. Push zones are ideal for large files. POP ORIGIN SERVER E CDN FEATURES ( SPDY SPDY is an open networking protocol for transporting web content. SPDY manipulates HTTP traffic, with particular goals of reducing web page load latency and improving web security. Secure Token Token authentication ensures that an URL is only accessible during a defined time. The validity can be set individually for each file. Hotlink Protection Hotlink protection will ensure that files are only loaded from predefined websites. Raw Logs Raw logs provide more details about each request. KEYCDN WILL SUPERCHARGE YOUR WEBSITE. KeyCDN offers flexible pay-as-you-go pricing. No commitment. No subscription. No monthly fee. Sign up for a 30 day free trial (no credit card required). Okeycdn .com www.keycdn.com @