Lately geo-targeting has been pretty popular in technology. By IP, cell tower, GPS, using browser plugins, HTML5?, mobile devices ...
Since I'm about to add some geo-targeted features on our site, I wanted to know what's the best approach. Is there some API that uses a mix of all those technologies? Or at least, what API/service would you recommend I use?
The service I'm working on doesn't need to be 100% accurate, so I'm OK with geo-IP, but if there's an easy way to do better, why not.
Technologies used are php, javascript, ajax, java.
Whatever you do please please please don't set the language of your website based on the user's IP, and then make it almost impossible to change unless you know said language and you feel like wasting hours (like ebay and paypal, among others, do). Use the browser's language.
Not everyone in, let's say, France speaks or wants to speak French.
I guess it's not very related to your question but i felt the need to rant about this, sorry :)
GEO IP is probably the best approach for now.
HTML5 looks promising, but it'll be a while before it's widely supported. And even then it requires explicit user approval, which kind of limits the possibilities for using it (for example auto-redirecting to a country specific version of a website)
For a start try the free http://api.hostip.info?ip=x.x.x.x (www.hostip.info for website)
It'll give you city and country in a xml structur. I've a small proxy-script writen in PHP on the http-server, which a html page calls with ajax and show the infomation in text and on a Google map using the Google geocoding api. Later on you can easy replace the api.hostip.info with an other api.
I would use IP address detection by default, and then optionally ask for a more specific location using the Javascript/HTML5 navigator.geolocation API when present. (For example, in iPhone Safari)
Most users are still using devices that don't know the location themselves, so plugins that are available will not get a better location than IP address detection does anyway. (Alternatively, they'll prompt users to manually enter data, which is annoying)
Max Mind is good. But if you are looking for a free solution, you may want to consider using the javascript geocoder. Eventually they will support addresses and country, but right now, they only give you a latitude and longitude.
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I am trying to create a website which can track/analyze the visitor and gather as much information as possible about the visitor. I have already found services which were not free, but they have provided every piece of information about the user who is visiting the website.
Is there a solution for that which is free yet effective like the paid ones out there? Also, should I use client side or server side scripting? Which is more reliable?
The main reason that I'm trying to gather these information is because I'd like to know more about my website visitors and eliminate the fraudsters or cheaters by analyzing their information. Or is there another good solution for that?
I'm sorry if this is a weird question, I'm quite new in this field this is why I'd like to know more about it.
EDIT: I have already tried Google Analytics, but it is not really good in my case.
If you would like to Geo Locate your visitors, and discover their physical location based off their IP, MaxMind has a great service with a free option.
http://www.maxmind.com/en/geolocation_landing
I am currently working on a special interest social network. The part that I'm having trouble with is the location of individual users.
My ideal solution would be a system where users enter their city/state and/or zip code, and could search for other users within their own area.
What I think separates my question from many existing threads is my needs and my resources. I don't have much capital at all to invest in a paid database, nor do i need all the features offered by the ones i've come across. I'm really looking for suggestions in which direction I need to go in. I've seen a lot of threads with similar ideas, but none that give the type of answers i need for my project. I'm not sure where to start with this, so any help would be greatly appreciated!!
Also, I'm building my application in php5.
these barebones hosting packages include MySQL... 1and1.com
so you could store the locations, and use the Haversine formula to find nearby users: http://code.google.com/apis/maps/articles/phpsqlsearch.html#findnearsql
For getting the data in Lat/Lng format, you could consider using navigator.geolocation...it's fairly well supported, but you could do a test for it: if(navigator.geolocation) and if it's NOT, provide a text field for city/state or ZIP, and then geocode that to get to Lat/Lng (google has a service here: http://code.google.com/apis/maps/documentation/geocoding/ ) but it does have some limitations, like 2500 queries/day unless you pay for an upgraded license
Actually, even if the navigator approach is available, you might want to provide a confirmation step (in case their ISP is returning an different location)...like "you appear to be HERE, is this accurate, or would you like to supply your own location"
Thank you Robot Woods, Your answer inspired some creative googling that lead me to the answer to my problem. Yahoo offers PlaceFinder! http://developer.yahoo.com/geo/placefinder/
PlaceFinder can be used to get a Latitude/Longitude from a user inputted city/state combination or a zip code. And best of all... Its Free!!! Fits my budget perfectly!
We have a client that wants a store locator on their website. I've been asked to find a webservice that will allow us to send a zipcode as a request and have it return locations within x radius. We found this, but it's maintained by a single person, and doesn't look like it gets updated or supported very well. We're looking for something commercial, ideally that updates their zipcode database at least once per quarter, and that has a well-documented API with PHP accessibility. I won't say price isn't an object, but right now we just want some ideas, and my google-fu has failed me.
I've already posted this over on the webmasters forum, but thought I'd cover my bases and post here too.
I've repurposed this outstanding script to conquor this same challenge. It's free, has been very reliable, and is relatively quick.
In my script, I have addresses stored in the DB. So rather than show a page to enter addresses, I simply pass them as a string and let the magic happen.
He says it in the app, but ensure that if you go this route you get your own Google Maps API. It won't work with his!
If you want to go a bit less technical approach, here's a MySQL query you could run on your locations (you'd have to add lat/long to your DB or setup a GEOCODING service) to give you distance as the crow flies.
Google Maps has a geocoder as well and it geocodes to the specific address.
It's limited to x number of requests but that shouldn't be a big deal if your site is small and if you cache. You can get more requests if you pay.
It can be accessed via javascript or via PHP (and there are several prewritten PHP modules out there)
Link here:
http://code.google.com/apis/maps/documentation/javascript/v2/services.html
(I worked for a company that did upwards of 800,000 requests a day, so it's stable and fast :) )
PostcodeAnywhere has a Store Locator feature - I think it's pay per use, but I've used their other products before and they're very cheap.
http://www.postcodeanywhere.co.uk/store-locator-tool/
I'm in need of a way to detect mobile browsers server-side. I'd like a way that requires me to do little to set up and little to maintain, yet still provide me with accurate detection of (at the VERY least) Android, Mobile Safari and Blackberry browsers, along with alternatives like Opera.
I'd like to have at least the majority of the mobile market covered, and I'd really prefer virtually all of the market if it doesn't take much.
WURLF is the ultimate way for mobile browser detection and a PHP API is available.
I found this one to be very easy to use php-mobile-detect
(edit: for now the Browser Capability Project is closed, i.e. atm this answer is not an option)
All you need is get_browser() and a recent browscap.ini that maps the user-agent string to a browser/version and its capabilities.
You can get a usually very up-to-date browscap.ini version from http://browsers.garykeith.com/downloads.asp
Its just a matter of reading the headers ( How do I read any request header in PHP ) and parsing / interpreting this to read the "user-agent", you may be able to find an existing PHP script or maybe just plain regex that will help in figuring out which user-agents are mobile and which are regular pc's / laptops.
There are a lot of different headers, as it indicates the operating system, so as many different mobile OS'es as there are there would be user-agent headers so the script needs to have a list of all valid ones.
http://en.wikipedia.org/wiki/List_of_user_agents_for_mobile_phones
Found this library a little while back:
http://code.google.com/p/mobileesp/
Has PHP, Java, JavaScript, and C# versions. I see it as a "lightweight" smartphone/tablet detection tool without dependencies and is regularly updated. I have mixed feelings about it though as some aspects of the code quality are a bit shaky.
If you need something even lighter-weight, the WP Super Cache plugin for WordPress contains some long regex strings you could probably swipe.
Browser sniffing based on user agent strings is always going to be flaky. I looked at WURFL and it is several MB compressed. Using that is overkill. A better approach is to detect the top devices in use on the website, design for those devices, and then call it a day.
A quick Google search picks up these:
http://mobiforge.com/developing/story/lightweight-device-detection-php
http://code.google.com/p/php-mobile-detect/
Zend Framework introduced Zend_Http_UserAgent lately.
It can determine the Mobile Device and it's capabilities by detecting the UserAgent through Wurfl, TeraWurfl and DeviceAtlas API.
How about http://code.google.com/p/hdapi/ ? Server side mobile detection in PHP.
Unfortunately WURFL is not free anymore for commercial projects.
But there is OpenDDR with its experimental PHP implementation.
I once used to store temporarily visitors' ip-addresses and csrf-session values (meant to count current visitors).
And I noticed that I had a side-gain of being able to see if the visitor used a mobile or a PC: The csrf of a mobile changes with every new page load, a PC doesn't; and the ip-addresses remain in both cases.
Sure, you only detect a mobile if a visitor clicks twice and I have not checked how reliable this is (as I do not really need it), but it is php/server-side only.
Basically, I want to display local events to people on a page. So if you were from California you would have different things than someone from Florida. I am going to be using php for the rest of the project so php is a must.
I would prefer to get the data without having to ask the user for additional information. IF I have to ask for additional information, I would want to use a zipcode than I would save that zipcode to a database with their ip so I didn't have to ask again.
I would imagine the GEO IP functions would get you 90% of the way there, if not all the way.
How will you know the location of the person?
For example, you can't go by the ISP, as their ISP address may be in a different state than the user.
If they have to log in then you can know where they were when they logged in, but what if the are on a trip and so staying elsewhere, now your information is wrong.
That would be the first challenge.
Depending on how fine-grained you are trying to get will determine what your database looks like. For example, while I am going down a street, if I am using a mobile device, will you be able to use my GPS data to determine what gluten-free restaurant is close to me? Or is it based on a city or metropolitan area?
Are you using GPS data?
How will you get the local events to update your application?
There is a great deal of information left unanswered to be able to really give you a good answer.
Are you trying to guess the visitor's location? If that is what you want, see the PHP GeoIP extension or MaxMind GeoIP api. They both use the same database and offer free and paid databases.
One problem with this method is that the IP address does not guarantee an accurate location. It is often a good starting point though. You should make it easy for the visitor to correct their location.
A potentially more accurate method is to use the HTML5 geolocation api, but this is experimental and only supported in the latest browsers. Even with browser support, the site visitor needs hardware capable of finding their location or a plugin that allows them to set their own location. If you go this route you should have a fall back based on the GeoIP result.
You could look up their IP address in a geolocation database like other people have mentioned, and as everyone has pointed out, it's not foolproof but it should work most of the time.
You could also take a look at using Firefox's location-aware browsing, which again isn't foolproof -- yet it does accurately pinpoint my very house when I use it. Of course, this would only work for Firefox 3.0+ users, and only after they click the "accept" button, so it's obviously not without issues.
Whichever way you choose to go, just make sure there's an override somewhere! Your method might work 99% of the time, but if I'm in the 1% of people who are never shown the right information, that'd be really really annoying!