Dynamic JavaScript... Is it bad for SEO?

Good afternoon

I have an arcade site and I want to use Dynamic JavaScript to make people who want to add my game to there site be forced to leave the link back to my site, would search engines be able to see this, and would it be a good idea (in an seo point of view)

example:

instead of

they put

on there blog or w/e which will go to
a file which has that code

whats everyones view on this, is it seo friendly? will the script passover spiders and pr to me?

Thanks in advance for everyones input

 

This would not be SEO friendly.

The best thing is to use php to open their webpage every few days and detect if there is a link to your site on the page. Kind of like a spider.

Their site still displays the <script src="http://url.com/media.php?someurl=loadthis&id=234"></script> part but this script only outputs the game and not the link to your website.

If their site fails the validation at any time then you can simply disable the script until they fix it.

 

Thanks, is there a link or tutorial on how to do this?

 

ini_set (default_socket_timeout, "3");
ini_set (user_agent, "Al Capone Validator");
error_reporting(0);

$theurl="http://www.theirwebsite.com";

$filestring=file_get_contents("$theurl");


$findme  = 'http://www.yoursite.com';
$pos = strpos($filestring, $findme);

// Note the use of ===.  Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
   echo "The string '$findme' was not found in the url '$theurl'";
$valid="no";
} else {
   echo "The string '$findme' was found in the url '$theurl'";
   echo " and exists at position $pos";
$valid="yes";

}
$todaysdate= date("d-M-Y");

$result = MYSQL_QUERY("UPDATE yourtablename SET valid='$valid',validated='$todaysdate' WHERE url='$theurl");
	

PHP:

 

thanks, but i wouldnt be able to add each site that is leaching, it would be to many and to much work, il just have to deal with it... thanks again

 

You would just need to set up a database containing the urls of each website that is using your script.

Then every week of so you run a script that loops through all the entries in the database and put the urls through my script and updates the database with the results.

Its a simple thing to do and is worth doing even for 10 extra links.