Free IP to Geo Location script

by Christian Harms on Mon, 05/18/2009 - 10:28

We offer a simple IP geolocation javascript for free!

After including you will be able to determine the geo position (lat/long) of your visitor, get his hometown and country. The only precondition is to include a link to http://united-coders.com/.

If you want to include it on high traffic sites it could make problems because there are limitations due to the conditions of the used webservices. We have build some caching strategies so it won't be an issue in the most cases. If you want to do more requests please read about limitations in the article of making a ip2location mashup and deploy your instance directly.

Play with it and use some free proxy servers to change your own IP!

How to include?

<script type="text/javascript" src="http://ip-geo.appspot.com/geo_data.js?key=#your_google_key#">
</script>
<script type="text/javascript">
  document.write(com.unitedCoders.geo.generate_map(500, 400));
</script>
Powered by <a href="http://www.united-coders.com/christian-harms/free-ip-location-script">united-coders.com</a>.

The backlink is not optional!

The google key parameter is optional. You need it if you want to use the google ip location api and/or the static google map to show all found locations. After printing the generate_map function it will display the following map and the found location.

You are near these cities:

We are using more than one IP2geo API for a more fault-tolerant script and more accurate position determination. Internally we call ipinfodb and hostip and after including our geo location javascript there will added more javascripts (for more locations):

maxwind.com
the google ajax api - if the key parameter is set
WIPmedia.com

Our javascript "ip-geolocation and data aggregator" includes all these scripts - so the initial loading may take a while. A second request (after reload or from a second page) of the same visitor will be cached. After all a global object with all data will generated based on the calling ip. In the javascript context all data are available and/or you can use the javascript html generator function to generate simple html code.

The com.unitedCoders.geo object

com.unitedCoders.geo = {
  // this object list can vary from 0 up to five positions!!!
  ll : [ { country: 'Germany', city: 'Esslingen', long: 9.3, lat:48.75, name:'iplocationtools'},
         { country: 'Germany', city: 'Waldenbuch', long: 9.1333, lat:48.6333, name:'maxwind'},
         { country: 'GERMANY (DE)', city: 'Karlsruhe', long: 8.4, lat: 49.05, name: 'hostip' }],
  getLat: function(),            // this is computed with the ll-coordinates
  getLong: function(),           // this is computed with the ll-coordinates
  getPosition: function(),       // the middle point as object { lat : 1.0, long: 1.0 }
  getLocation: function(),       // get the middle position with city/country
  //calculate the difference in kilometer from the user to (lat, long)
  differenceFromUser: function(lat, long), 
  generate_map: function(width, height),
}

the generated html-code

First you have to add to your page using our geo location script some css-styles if you want to design the following pure html lines. For simple usage there exists the id "local_map".

<div id="local_map">
  <img src="http://maps.google.com/staticmap?size=320x240&key=your_google_key&markers=48.75,9.3,midblue1%7C49.05,8.4,midgreen2%7C48.6333,9.1333,midred3%7C48.8111,8.94444,black"/>
<ol>
  <li>iplocationtools: Esslingen, Germany</li>
  <li>hostip: Karlsruhe, GERMANY (DE)</li>
  <li>maxmind: Waldenbuch, Germany</li>
</ol>
</div>

The google map example use the google static map api so there is only one large url with the geo location parameters and the text lines below with the geo location service provider data. Feel free to use the javascript data directly or build better html widgets. But don't forget to include a link to united-coders.com for free usage!

Wieviel Requests schafft so eine app engine?

from Netzfundstücke, Browserspiele, Eigenversuche on Wed, 03/10/2010 - 20:54

Vor einiger Zeit hab ich ein Geo Location Aggregator auf united-coders.com vorgestellt. Lange wurde dies auf einer app engine nur mit wenigen Requests genutzt. Doch irgendwann nutzt doch jemanden einen freien Dienst und dann werden die freien Limits irgen

Comments

Great article. Is there a way
Anonymous - Thu, 08/20/2009 - 09:43

Great article.

Is there a way to exclude the results provided by WIPmania?

WIPmedia is out !
Christian Harms - Mon, 11/02/2009 - 22:58

After checking the last 1000 visitors the wipmania api call is removed. The black locator will better match the visitors location!

Help
Dallas (not verified) - Mon, 08/30/2010 - 01:57

Im working on a directory kinda like yellow pages i want to use something similar to this so my site will find the city the person is in and place it in the location bar just like yellowpages does any suggestions thanks

thx
Anonymous - Wed, 09/02/2009 - 22:44

thanks for your free script.

corro.info

Can you tell me how to get
Ritesh Ranjan (not verified) - Thu, 11/12/2009 - 21:29

Can you tell me how to get the ajax request working with

http://ipinfodb.com/ip_query.php?ip ,
i tried But its not working

the code i m using is like

var xmlhttp
function requestt()
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
{
alert ("Your browser does not support XMLHTTP!");
return;
}
var url="http://ipinfodb.com/ip_query.php?ip";
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
var xmlDoc=xmlhttp.responseXML.documentElement;
alert(xmlhttp.responseXML);
// **** showing null **//
}
}

AJAX and Cross Domain
Christian Harms - Fri, 11/13/2009 - 17:24

Hi Ritesh,

you cant access with the XMLHttpRequest to an other domain than yours!

1. Use the JSONP-API from IPInfoDB to make cross-domain requests.

2. Or just include the offered Javascript like described in the example. Than there is no need to do the requests. Why do you try to access only one provider instead of let aggregating 4 provider form our script ?

Hoping this helps, Christian.

how do i pass particular ip address on this routine
aasifnasim (not verified) - Mon, 02/01/2010 - 10:54

hi dear
thanx
its working and displaying near by map
so i would like to ask u
how do i pass a particular ip address and findout its location in this routine
thanx in advance

The live demo will use your
Christian Harms - Fri, 02/05/2010 - 00:08

The live demo will use your calling ip directly and there is no parameter too set the ip. If you want to find the position for other IPs use the described API calls.

You just add the red point
Anonymous (not verified) - Thu, 03/18/2010 - 18:25

what I didn't like in your comment to include your site link make me angry , you didn't include google link ! , here is all what you did without the red flag
http://code.google.com/p/gmaps-samples/source/browse/trunk/clientlocatio...

any one can just add the red flag , it was better to publish the code open source and don't make this restriction .

in the final you didn't do anything it is all done by google

it's more than the google example!
Christian Harms - Fri, 03/19/2010 - 00:24

If you use only the google client location you will get only one position (mostly without city/country). The aggregation script integrate up to five ip provider and run in my google app engine account with more optimizations (caching). Its not so clean to publish the code, but the application is good enough to get some backlinks for our blog. Feel free not to use it or implement the whole code - I wrote a php example too.

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[...] implementation of the ip to geo location script started as a quick hack in php. Sometimes I use php scripts because everyone can include it in his [...]

special map design
Ömer Feyzoğlu (not verified) - Wed, 04/14/2010 - 18:57

ı am using the geo script provided by maxmind.com
what ı want to do is as follows: My base location is always Istanbul- Turkey and when a visitor visits my site I want to draw a line on the map from city to his city provided by geoscript ; kind of a truck moving goods from mine to his location, may be a little truck moving on the map to his.
It should be possible ?

Please let me know how and the fee.

info@groupenerji.com

best regards
Ömer Feyzoğlu

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looks good, do you have a
Anonymous (not verified) - Thu, 08/26/2010 - 07:58

looks good, do you have a wordpress plugin? if so please email me. i have no problem sending a backlink. thanks

Google API key
DMG (not verified) - Tue, 08/31/2010 - 18:43

There is something wrong with http://ip-geo.appspot.com/geo_data.js
It doesn't handle Google API key:

First, before doing:

document.write('

');

it should check if the jsapi is already loading.
Second, this line is wrong as it concatenates API key two times and the API Key is not the one provided!

Thanks,
Dawid

Thanx - Bugfix is out
Christian Harms - Tue, 08/31/2010 - 23:50

Yes, you are right. The google api key was not part of the memcache key - fixed.

The second part is correct: I added an if (!window['google'] && !google.loader) before including the google api loading part. If you dont need the google part keep the key-query param empty and you will only get the location part of our data.

What should the wordpress plugin do?
Christian Harms - Tue, 09/28/2010 - 17:04

What should the wordpress plugin do? Should it offer the link to the short map with the position of the visitor or only a javascript wrapper as wordpress plugin?

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