On May 3, 2017, at 8:27 AM, Chris Lane <clane1875@gmail.com> wrote:
All
We have several direct allocations from ARIN which we then provide smaller prefixes to our customers across the country. Our HQ is on the East coast, but many of our customers are on the West Coast. Trying to understand and fix some of my west coast customers GEO LOCATION issues as they are reporting for instance when running "speed tests" to Internet sites the location pops up as an East Coast server instead of West and more local.
A number of CDNs use tools like the DNS server/query source to identify where the clients are. If they are all using a centralized DNS server, some providers will classify you as in one area vs another. Consider using a different DNS query-source for east coast vs west coast users. Consider using tools like ECS (EDNS0-Client-Subnet) if possible to provide hints to the various CDNs/Geolocation folks. If you’re aware of a specific mis-charachtherisation, consider posting the relevant DNS server information or IP ranges involved. If you don’t know how to find your DNS server query-source, a tool like this: https://cmdns.dev.dns-oarc.net/ Will help you find the information easily. - Jared