Case Study: Making Secondary DNS Business Critical For A Top Global Bank

January 4, 2017 Gary Sloper

The internet plays an eminent role in the way many of the largest, most profitable companies in the world operate. For financial services companies, the internet can impact customer transactions, internal operations, partner networks, mobile access and operation and other critical areas that impact the bottom line. Understanding the role of internet performance – and of DNS as part of the larger regional and global network infrastructure – is critical to the success of any CIO or SysAdmin team.

Dyn has played a central role in helping some of the top global financial institutions manage their digital transformation. Recently, a top financial institution was managing its hybrid cloud strategy, having moved a significant portion of its workloads  to the public cloud. However, its IT and business executives were exposed to risk on multiple fronts. One, the organization was using just one DNS provider, opening the business to the potential of a full outage were that provider to experience an outage. Second, the use of just one DNS configuration was limiting its internet performance threshold – latencies experienced through the one DNS provider would have a negative impact on its customers’ experience – by adding just another DNS provider as a secondary configuration the business would instantly improve the digital experience of its customers and partners.

The internet is inherently unpredictable and without DNS redundancy any business is susceptible to downtime. This financial institution experienced two such outages in the course of a year, costing it millions in lost revenue.

Their solution was both easy to implement and cost-effective: employ a secondary DNS provider to mitigate risk and ensure business resilience.

Secondary DNS ensures that cloud assets never go down and curbs latency issues (many secondary DNS configurations ensure that the first DNS provider that receives a network request will return first – so secondary can be primary and visa versa depending on which DNS provider is performing best at the time of query). Customers expect websites and apps to be “always-on” and latencies or outages cost revenue and erode brand trust.

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