IP Address Geolocation

If you would like to know your ip address location based on the user ip address. here is best option you can go with.

I have created a visualforce page and an apex controller that makes a callout to external application with the user logged in ip address and will get back the response and displays in vf page. 

Add the endpoint url to Remote Site Settings 

http://www.telize.com

Vf page:

<apex:page controller="FindIpAddress" action="{!getipaddress}">
Country:{!country}<br/>
Isp:{!isp}<br/>
IP:{!ip}<br/>
Latitude:{!latitude}<br/>
Longitude{!longitude}<br/>
TimeZone: {!timezone}<br/>
</apex:page>

Apex Class

public class FindIpAddress {
    public String country {get;set;}
    public String isp {get;set;}
    public String ip {get;set;}
    public integer latitude {get;set;}
    public integer longitude {get;set;}
    public String timezone {get;set;}
 
 public void getipaddress() {
  string ReturnValue = '';  
  ReturnValue = ApexPages.currentPage().getHeaders().get('True-Client-IP');
  if (ReturnValue == '' || ReturnValue == null) {
   ReturnValue = ApexPages.currentPage().getHeaders().get('X-Salesforce-SIP');
  } 
  if (ReturnValue == '' || ReturnValue == null) {
   ReturnValue = ApexPages.currentPage().getHeaders().get('X-Forwarded-For');
  } 
  Http h = new Http();
  HttpRequest req = new HttpRequest();
  req.setEndpoint('http://www.telize.com/geoip/'+ReturnValue);
  req.setMethod('GET');
  HttpResponse res;
  try{
   res = h.send(req);
   Map<String, Object> m = (Map<String, Object>)JSON.deserializeUntyped(res.getbody());
   country =(String)m.get('country');
   isp=(String)m.get('isp');
   ip=(String)m.get('ip');
   latitude=(Integer)m.get('latitude');
   longitude =(Integer)m.get('longitude');
   timezone =(String)m.get('timezone');
  }catch(Exception e){
  }
 }
}