CDNs mostly use network-level data to find the "closest" and/or highest performance cache, not geography. if your server is in Asia, most CDNs will be able to c

CDNs mostly use network-level data to find the "closest" and/or highest performance cache, not geography. if your server is in Asia, most CDNs will be able to calculate that Singapore, Tokyo, Hong Kong, etc. have a lower latency to you than a US one that more closely matches WHOIS data for your IP address.