Why doesn ProxyPass use high resolution geo tracking?
The most important answer is that fine-grained geo mapping is not accurate enough, especially for authorization controls. It can be useful for targeted marketing campaigns or similar applications, but anything below the country-level (which ProxyPass supports) is quite inconsistent. Please view the published statistics on accuracy from one of the industry leaders in geo-IP targeting, MaxMind. Notice that the city identification is only 80% accurate in the USA and Canada, as low as 50% in the UK, and around 70% in many large European and Asian countries. What this means is that there are plenty of mistaken mappings; and unreliable mapping leads to mistaken blocks. A secondary reason for not including any mapping below the country-level is that the internet IP space does not map very closely to physical, geographic space. Proxy servers, large web caches, ISP/university/corporate gateways, VPN tunnels, and many other common and legitimate routing setups all create situations where one or
