The Domain Name System, DNS for short, provides a worldwide directory service for the Internet. “When a user requests a site, most DNS providers make a guess as to where the user is located based on their IP and send them to the closest data center that’s up,” says Jonathan Sullivan, co-founder and chief product offi cer. “So it’s like GPS in the year 2000: You put in Home Depot, and it knows where the closest one is, but it has no idea what the traffi c is like on the way there or what the conditions are like in the store—if it’s on fi re, those kinds of things.” Enter NS1. Just as Google Maps and Waze improved upon GPS’s capabilities, NS1 is doing the same for Internet traffi c management. The use cases range from providing and directing traffi c to a disaster recovery envi

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