From: lew.pitcher@digitalfreehold.ca   
      
   On Sunday October 4 2015 12:56, in   
   comp.protocols.tcp-ip, "bit-naughty@hotmail.com"    
   wrote:   
      
   > How does a website know where in the world I am....? I've been to sites   
   > which ask me (Firefox pops up the box on the top left), and then OTOH, there   
   > are sites which seem to identify where I am just fine, though I never told   
   > them....???!!!   
   >   
   > I would like to get to the bottom of this - how is this pulled off exactly?   
   > Did they give a latitude and longitude co-ordinate to every router on the   
   > internet or something?   
      
   They typically use your IP address to make an /educated guess/ as to your   
   location. Since IP addresses are /not/ assigned by specific geographic   
   location, the guesses give, at best, approximate locations. The guess /may/   
   be refined by   
   - determining which registry authority provided the IP address   
   - determining the location (from whois data) of the ISP that assigned the   
     address   
   - following a traceroute to decode the path that packets take to get to you   
     and decyphering physical route clues from that   
   - asking your web client for your location (fed by GPS or by configuration)   
      
   Take a look at https://www.iplocation.net/   
   They explain the process quite well.   
      
   HTH   
   --   
   Lew Pitcher   
   "In Skills, We Trust"   
   PGP public key available upon request   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)