proxy_test.php

<?PHP
// input website
// output domains used
if(isset($_POST['url'])){
  $site = $_POST['url'];
}else{
  $site = 'https://www.';
}
?>
<form method='POST'>
<input name='url' size='150' value='<?PHP echo $site;?>'>
<input type='submit'>
</form>
<?PHP
if(isset($_POST['url'])){
function getPage($url){
    $curl = curl_init();
    curl_setopt ($curl, CURLOPT_URL, $url);
    curl_setopt ($curl, CURLOPT_USERAGENT, sprintf("Proxy Resource Testing/%d.0",rand(4,50)));
    curl_setopt ($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, 0);
    $html = curl_exec ($curl);
    curl_close ($curl);
    return $html;
} 
$html = getPage($site); 
echo htmlentities($html); 
preg_match_all('#\bhttps?://[^,\s()<>]+(?:\([\w\d]+\)|([^,[:punct:]\s]|/))#', $html, $match);
echo "<pre>";
print_r($match[0]); 
echo "</pre>";
}
?>