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The #1 Question You Should Ask Any DNS Provider

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@dyn dyn.com page 3 Ebook | The #1 Question You Should Ask Any Potential DNS Vendor The latter two steps are crucial because operating a network is like repairing an airplane in mid-flight. Once you start you can't stop, and so you have to figure out how to deal with whatever is thrown at you. While this information can be useful for your own architecture planning, it should also instill confidence in Dyn as a vendor. For a key infrastructure component like DNS you do not simply want to have a vendor. A vendor takes the parachute and jumps when the plane looks like it will crash. You need a trusted partner that will be there by your side helping steer you to safety. Build for Success Global Distribution: The first step to building a world class network is to have geographic distribution. We have various points of presence (PoPs) all across the globe, primarily driven by customer demand (see below). These include 18 primary PoPs, and two in China, which are unique in that they are behind the Great Firewall of China and optimize in-country performance. Additionally, Dyn has micro-PoPs and traceroute collectors, which help us collect telemetry, which we feed back into our products to improve features like geolocation. While distribution is beneficial to end user optimization, it also makes your infrastructure both globally and locally elastic. This allows you to add or remove capacity, which ensures a high level of redundancy allowing you to be responsive to real-time situations. Elasticity affords you the ability to take sites down and repair them without obstructing the general flow of end-user traffic. We have built our infrastructure in a way that this action is replicable within each site so that we could withdraw an individual server or router and upgrade them without any impact being felt by customers. The Dyn network (Managed DNS, Email Delivery, Recursive DNS) is deployed on top of a global IP network, consisting of 20 existing facilities and connectivity from a mix of Tier 1 Internet Service Providers (ISPs). The network has been split into two diverse constellations (A and B) to provide active/active failover between constellations in the event of catastrophic failure. Within each constellation, we distribute traffic to multiple data centers, providing global active-active load balancing using the Anycast routing technique. This network allows Dyn to offer its customers a world-renowned level of service and reliability.

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