Zakas, Nicholas (29 de noviembre de 2011). «How content delivery networks (CDNs) work». NCZOnline(en inglés). Archivado desde el original el 1 de diciembre de 2011. Consultado el 1 de diciembre de 2017. «When the browser makes a DNS request for a domain name that is handled by a CDN, there is a slightly different process than with small, one-IP sites. The server handling DNS requests for the domain name looks at the incoming request to determine the best set of servers to handle it. At it’s simplest, the DNS server does a geographic lookup based on the DNS resolver’s IP address and then returns an IP address for an edge server that is physically closest to that area.»
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Zakas, Nicholas (29 de noviembre de 2011). «How content delivery networks (CDNs) work». NCZOnline(en inglés). Archivado desde el original el 1 de diciembre de 2011. Consultado el 1 de diciembre de 2017. «When the browser makes a DNS request for a domain name that is handled by a CDN, there is a slightly different process than with small, one-IP sites. The server handling DNS requests for the domain name looks at the incoming request to determine the best set of servers to handle it. At it’s simplest, the DNS server does a geographic lookup based on the DNS resolver’s IP address and then returns an IP address for an edge server that is physically closest to that area.»