COTENDO DYNAMIC SITE ACCELERATION
Cotendo Dynamic Site Acceleration (DSA) enables content providers to increase the performance of global delivery of dynamic web sites and web applications to achieve a superior end-user experience. Cotendo removes the traditional barriers that make it difficult to increase the performance and reliability of dynamic web sites with a site acceleration service focused specifically on improving non-cacheable web site content. Further, Cotendo simplifies whole-site acceleration by offering an integrated platform that serves both cacheable static content and non-cacheable dynamic content, through the same site acceleration services suite that is controlled through Cotendo's web-based management interface.
Optimized Global Connections
Dynamic sites and web applications are generally architected such that they should have good performance to any broadband-connected user. The largest issue that keeps most applications from achieving their performance potential is the end-user web client combined with the default behavior of underlying Internet and connection protocols. Inefficient handling of connections to the server, poor behavior of the TCP protocol from the end user's machine, and variable quality of last-mile connections, all conspire to create sub-par performance to the end user as well as create unnecessary extra load on the website. Cotendo offers an optimized, high-performance connection to the website from globally diverse regional locations, each of which is reasonably close to the user's network location and able to aggregate end user connections as well as mitigate end user network problems.
Accelerated Dynamic Web Sites and Applications
Cotendo does this via its highly efficient site acceleration service, Cotendo Dynamic Site Acceleration. DSA provides a high degree of protocol and connection optimization that significantly increases delivery performance of dynamic content from the origin location to regionally close Cotendo DSA content delivery locations. DSA also decreases the load of your dynamic content server, giving you much higher efficiency and leverage of your web application assets, relative to the number of customers they are supporting. The result is lower web server load, faster server response, and accelerated performance of the connection between the user and the website.
Flexible Deployment Methods
Cotendo DSA offers the flexibility of multiple deployment methods with either asymmetric or symmetric site acceleration. Asymmetric DSA allows connection aggregation and protocol optimization between a Cotendo last-mile POP close to a user, directly to a customers' origin server. Symmetric DSA provides two site acceleration touch points, one close to the user, and another near the origin server. Symmetric DSA improves performance by leveraging the entire Cotendo network and supporting origins that do not provide persistent connections. Cotendo also uniquely offers a mixed-mode model where both methods may be used to reflect different conditions and business rules to different geographic regions.
Seamless Integration
Cotendo's integrated platform provides whole site delivery by serving both cacheable static content and non-cacheable dynamic content. It is controlled through Cotendo's web-based management interface which provides real-time set-up and unified management of all services. To add DSA no changes to your web architecture are required and it works seamlessly with Cotendo Content Delivery which can handle the cacheable portions of your website. Further, DSA is very easy to tune. You can specify portions of your dynamic site that are in fact cacheable for performance near a user, such as certain scripts that don't vary by user.
SSL Optimizations
Cotendo DSA also utilizes and improves SSL communication performance. SSL protocols typically require many roundtrips for certificates handshake. DSA reduces part of the SSL protocol overhead by keeping persistent connections to the origin and performing the key exchange only in the last-mile thereby achieving an order of magnitude performance improvement.