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How to retrieve Google Backlinks count with PHP

November 8th, 2009 Leave a comment Go to comments

Here's a simple script to retrieve the approximate number of backlinks Google has for a site. The function and how to call it follows:

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function get_google_backlinks_count($url) {
	$url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=site:$url"
 
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_REFERER, 'http://www.yoursite.com/');
	$response = curl_exec($ch);
	curl_close($ch);
 
	$json = json_decode($response);
	return $json ->; responseData ->; cursor -> estimatedResultCount;
}
 
echo get_google_backlinks_count('yahoo.com');
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  1. Brandon
    November 30th, 2009 at 07:19 | #1
    Reply | Quote

    When running the script I get nothing as a response.  I do have an error when trying to manually create the results:
     
    {"responseData": null, "responseDetails": "clip sweeping", "responseStatus": 204}

  2. Dan
    November 30th, 2009 at 13:09 | #2
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    A quick search on google shows "clip sweeping" means there was something wrong with a passed in parameter. Are you sure the domain you're requesting data for is valid?

  3. Bruno
    June 10th, 2010 at 09:06 | #3
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    In the second line, remove “amp;”, and have something like this:

    $url = “http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=site:$url”;

    In my case this change worked.

    Congratulations for the script.
    Bruno

  4. Roni
    August 8th, 2010 at 08:27 | #4
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    But that script is only valid if we are talking about one site what would be of fixing it to work for say 50 ?

  5. Dan
    August 15th, 2010 at 18:43 | #5
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    Roni, you would just iterate through each domain.

    Something like this:

    $domains = array(‘google.com’, ‘yahoo.com’, ‘msn.com’);

    foreach ($domains as $domain)
    echo get_google_backlinks_count($domain) . “\n”;

  6. jude
    May 15th, 2011 at 06:58 | #6
    Reply | Quote

    the script does not work for me !! please advice
     
    function get_google_backlinks_count($url) {
        $url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&;q=site:$url";
     
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_REFERER, 'http://www.google.com/&#039 ;) ;
        $response = curl_exec($ch);
        curl_close($ch);
     
        $json = json_decode($response);
        return $json -> responseData -> cursor -> estimatedResultCount;
    }
     
    echo "backlinks=".get_google_backlinks_count('jobsally.com');

  7. Dan
    May 20th, 2011 at 16:23 | #7
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    Change &; to just & in the googleapis.com line.

    Also, you should be passing in YOUR site as the CURLOPT_REFER.

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