Reverse DNS queries can indicate which hostnames are associated with an IP address, which again might help locate the machine - particularly if the hostname includes a country-specific qualifier (such as .co.uk). But probably the most reliable technique is to use one of a number of databases that are available, linking IP addresses with

IP Geolocation Databases: Everything You Need To Know Geolocation IP Databases allow you to determine your website visitor’s location. These databases of IP addresses contain the latitude and longitude of a particular IP address. So when you look up an IP address, you are provided with the pair of coordinates that are the ‘origin’ of that IP address. IP lookup - What is my IP number - my IP address Reverse DNS queries can indicate which hostnames are associated with an IP address, which again might help locate the machine - particularly if the hostname includes a country-specific qualifier (such as .co.uk). But probably the most reliable technique is to use one of a number of databases that are available, linking IP addresses with How to use Maxmind's Geolite2 to get geoip data from the

This happens a lot: 5,000 companies rely on MaxMind's IP mapping information, and in all, there are now over 600 million IP addresses associated with that default coordinate. If any of those IP addresses are used by a scammer, or a computer thief, or a suicidal person contacting a help line, MaxMind's database places them at the same spot: 38

Locate website visitors for free using ipstack - a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup. Why does Speedtest show the wrong location? – Speedtest Performing this action will automatically copy the address. Fill out the reset of the MaxMind form accordingly and select “Submit”. The process of updating your location in MaxMind will take at the least 1-2 weeks to be reviewed and corrected. 3) It can take 1-2 weeks for MaxMind to process that form. How To Clean Up Incorrect Geolocation Information? - Slashdot

It then uses the Perl Module GeoIP2 and the MaxMind database to lookup the country and city information based on the IP address. Note that you can enter a domain name or IP address manually. BTW, there are more extensive databases that will provide more precise location data, but those cost dollars and this is meant just as quick-n-simple demo.

RegExp error - [MeasureLocationWeather] Matching error Jul 20, 2011