Most websites risk disruptions because they rely on a single provider for one or more cloud services. Every website requires a DNS server to route internet traffic based on its domain name, but few have a backup option if the service is denied. Indeed, 85% of the top 100,000 Alexa sites critically depend on a single third-party for DNS according to a recent study by researchers at Carnegie Mellon University. Unfortunately, if that providers’ service goes down, then the site is vulnerable to Distributed Denial of Service (DDoS) attacks and service outages. Having redundant DNS capability with more than one provider addresses the problem.
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