Whether from malicious activity, like a DDoS attack, or through a surge of unexpected traffic, as a result of a successful marketing campaign, there are times that your website may not have optimal performance. Fortunately, there is something you can do to mitigate and, potentially, prevent this from happening.
One of the best ways to ensure that your customers always have a good experience when they visit your website is by using Secondary DNS, also known as multi-DNS. Not surprisingly, having a secondary DNS service improves resilience because it offers redundancy. If your primary DNS service isn’t responding, you have another option to fall back on. This makes sense and is how most people think about the relationship between the two DNS services. This implies, however, that you have a secondary DNS service that is just sitting there waiting for your primary one to go down. That would be a waste and would limit the benefit of having two DNS services.
In the below video, we break down Secondary DNS and different ways you can configure it. One of the best ways is to have both services in delegation and responding to DNS queries. This creates a race to response and you benefit from offering your customers the fastest response, which will lower latency and improve performance.
Check out the video to learn more about the benefits of Secondary DNS.