05 Jun 2011

By - 59 Comments

Pile of +1 Buttons Now that the Google +1 button is out the Social SEO battle will inevitably be stepped up a gear. We know the search engines are using social shares and likes to impact the rankings, and Google’s +1 button is their way of ensuring at least some of this data is directly in their hands.

So obviously, tracking this data is very important for SEOs, and both Facebook and Twitter have APIs for pulling in Likes and Tweets, but currently we are left without a public API for doing this with Google’s +1 button. With a little digging behind the scenes I managed to find the API they use for the button. So now us SEOs can use it to pull out the Google +1 counts for lists of URLs (if you are interested in the technical details then see the optional section below).

I’ve put together a public Google Spreadsheet which can do all of this automatically for you – you just need to enter a list of URLs and the spreadsheet will pull in the counts for you. To get started, open the spreadsheet (download it right here) and select “Make a copy” from the File menu (you’ll need to be logged into a Google account to do this). Enter the URLs in the the A column (ensuring you pay attention to trailing slashed and they include http:// at the start), and the counts will appear in column B. You should see something like this:

Google Spreadsheet showing Google +1 Counts

Technical Bits

If you want to write your own solution, you can rip the code from the spreadsheet. The URL for the service is:

https://clients6.google.com/rpc?key=AIzaSyCKSbrvQasunBoV16zDH9R33D88CeLr9gQ

It is a JSON-RPC setup, meaning you send a JSON formatted request and get a JSON formatted response. The request should be via POST in the following format:

  1. [{"method":"pos.plusones.get","id":"p","params":{"nolog":true,"id":"http://www.test.com","source":"widget","userId":"@viewer","groupId":"@self"},"jsonrpc":"2.0","key":"p","apiVersion":"v1"}]

The request will be returned like so:

  1. [{"result": { "kind": "pos#plusones", "id": "http://www.google.com/", "isSetByViewer": false, "metadata": {"type": "URL", "globalCounts": {"count": 3097.0} } } "id": "p"}]

Example PHP Code

If you want to implement this server side, here is some example PHP code to get you going:

  1.  
  2. <?php
  3.  
  4.  $url = "http://www.tomanthony.co.uk/";
  5.  
  6.  $ch = curl_init();  
  7.  curl_setopt($ch, CURLOPT_URL, "https://clients6.google.com/rpc?key=AIzaSyCKSbrvQasunBoV16zDH9R33D88CeLr9gQ");
  8.  curl_setopt($ch, CURLOPT_POST, 1);
  9.  curl_setopt($ch, CURLOPT_POSTFIELDS, '[{"method":"pos.plusones.get","id":"p","params":{"nolog":true,"id":"' . $url . '","source":"widget","userId":"@viewer","groupId":"@self"},"jsonrpc":"2.0","key":"p","apiVersion":"v1"}]');
  10.  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  11.  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
  12.  
  13.    
  14.  $curl_results = curl_exec ($ch);
  15.  curl_close ($ch);
  16.  
  17.  $parsed_results = json_decode($curl_results, true);
  18.  
  19.  echo $parsed_results[0]['result']['metadata']['globalCounts']['count'];
  20.  
  21. ?>

There is an interactive demo here: Google +1 Button API demo.

Wrap Up

If you want to track social shares and likes and aren’t already setup with a Google Doc for the Twitter/Facebook parts you can head over to this post on Distilled which will help you get going. Combined with the above and you can build a complete system for tracking social search signals. Have fun!

59 comments on “Google +1 Button SEO – Getting Bulk Counts with the hidden API
  1. Alexander

    How to get my own API key?

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