Global load balancing intelligently distributes website or application traffic across multiple data centers and cloud service providers for optimal performance and 24/7 availability. Whether you are serving customers, partners, or internal users from two data centers or twenty, or supporting just a few applications or many, you will want all users to have the best experience possible. Fast performance and availability are crucial to such an experience. Efficient global load balancing is a key step towards delivering it.
While many companies have invested in improving the performance of their on-premise GLB, very few are able to achieve solid performance and high availability that a cloud-based DNS network can. Enterprises across the globe have begun complementing their existing GLB capabilities with secondary DNS service that is always listening for incoming requests.
Improved online performance helps companies maintain availability, improve the digital experience for employees and customers, and improve problem-to-solution times. When an end user’s recursive server initiates a DNS request, both the existing GLB appliances and the secondary DNS responds as soon as it receives the request. Whichever response reaches the recursive server first will be passed back to the user, completing the request. This process effectively creates a race for each incoming DNS request. All domain information will continue to be configured on-premise, in the same manner in which it is managed today.
The scale, complexity, and volatility of the internet are all on the rise. There are currently over three billion global internet users, while trends like agile application development and Internet of Things (IoT) compound internet growth. In the meantime, internet threats are also increasing with a seemingly unrelenting volume of DDoS, route hijacks, and other security threats. These dynamics not only make it clear that GLB is imperative for companies to thrive, but also that secondary DNS as part of an internet performance management (IPM) strategy is critical to maintaining business continuity and delivering a superior digital experience to end users.
Download Whitepaper on How Secondary DNS Can Extend Global Load Balancing to the Cloud