It depends on the accuracy of the databases used for the IP resolution. Some of these are based on the delegated IP ranges available from RIPE/ARIN etc. These typically provide only the country level resolution and the IP range. However sometimes you can see ranges assigned to EU or AP (I think). These might not show up in country resolution lists as EU is the European Union and AP is often used for Asia-Pacific. You need to dig deeper to the IP whois data to get better granularity. And even then you might find ranges like military/government that are not generally listed.Was checking a sites' link provenance using DPs' geolocation tool and came across a surprising amount of blank results. If not a problem with the tool I suspect this may be a deliberate ploy by link "arrangers", but how easy would it be to mask that info?