Ping AD server

[menntarra_34]

Hello, please can anyone advise a right solution on how to avoid my site acting strangely when one of my AD companies stops to function.

I mean there are downtimes for AD servers as well, and i'm wondering what is the best solution? Can i load ads on my pages separately, so i mean lastly? They are all over my page so i guess i can't do it. Or is it better to ping ad server and wrap these ADS around PHP if functions, which ping these servers?

If you have a solution , which is most effective, please tell me.

[ZulfadlyAshBurn]

what you mean acting strangely?!

[menntarra_34]

well i mean, if one of those ad servers are down, my site stops loading, cause it is trying to load the ADS, but because of the ADSERVER being slow/hanging at some points, it also slows down my site...

yesterday, i did wait for 2 minutes, and my site stopped at a point where an AD should load. Then i checked the AD company's server and i couldn't reach it...

 

So basicly they must be having high load or something like that, but in these cases i don't want it to affect MY site's performance... What could be the best solution?

[voip03]

Use get_headers or url exists method to check ADS url are available

 

get_headers

$file = http://www.phpfreaks.com/forums/index.php?topic=342689.0; 
$file_headers = @get_headers($file); 
if($file_headers[0] == 'HTTP/1.1 404 Not Found') 
{ $exists = false; echo "URL not found"; } 
else 
{ $exists = true;  echo "URL found";     } 

url_exists

function url_exists($url) {
    if (!$fp = curl_init($url)) return false;
    return true;
}

[menntarra_34]

I found something like this:

 

It should be as fast as it can be, i wonder if it can hang as well, meaning if the AD server is online, but under high load, so basicly answering, but connection is crappy.

 

 

function url_exists($url)
{


    $handle   = curl_init($url);

    if (false === $handle)
    {
        return false;
    }

    curl_setopt($handle, CURLOPT_HEADER, false);
    curl_setopt($handle, CURLOPT_FAILONERROR, true);  // this works
    curl_setopt($handle, CURLOPT_HTTPHEADER, Array("User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.15) Gecko/20080623 Firefox/2.0.0.15") ); // request as if Firefox   
    curl_setopt($handle, CURLOPT_NOBODY, true);
    curl_setopt($handle, CURLOPT_RETURNTRANSFER, false);

    $connectable = curl_exec($handle);

    curl_close($handle);  

    return $connectable;
}

 

 

 

[menntarra_34]

I think this is the solution i found:

 

Deferring ad loading on your pages to avoid unnecessary outages:

 

1. I put my deferredcontent.js code that I wrote in the head tag

<script type=”text/javascript” src=”/js/deferredcontent.js”></script>

2. I added an onload=”relocateDeferredContent();” to the body tag

3. I put an empty div tag where I ultimately wanted the content to end up. E.g <div id=”adleaderboard”></div>

4. I put the deferred content in a display:none div just before the closing body tag at the very end of the page and put each block of code I wanted to relocate in a div with an id of defer-IDFROMSTEP3

 

<div style=”display:none”>

<div id=”defer-adleaderboard”>

[Ad code goes here]

</div>

</div>

 

 

 

 

 

thanks to the man who posted it here:

http://gabrito.com/post/deferring-ad-loading-on-your-pages-to-avoid-unnecessary-outages