Get the source code from Github    -    or the bookmarklet

Result:

https://puppysaleindia.com/user/profile/119092
Array
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    [keep-alive] => timeout=5, max=100
    [x-powered-by] => PHP/7.4.27
    [set-cookie] => osclass=bd61bc52dfda58cf949c227413ea6272; path=/; secure; HttpOnly
    [expires] => Thu, 19 Nov 1981 08:52:00 GMT
    [cache-control] => no-store, no-cache, must-revalidate
    [pragma] => no-cache
    [content-type] => text/html; charset=UTF-8
    [content-length] => 1710
    [content-encoding] => gzip
    [vary] => Accept-Encoding
    [date] => Tue, 16 Aug 2022 22:13:45 GMT
    [server] => LiteSpeed
    [content-security-policy] => upgrade-insecure-requests
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Array
(
    [url] => https://puppysaleindia.com/user/profile/119092
    [content_type] => text/html; charset=UTF-8
    [http_code] => 404
    [header_size] => 693
    [request_size] => 139
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.452469
    [namelookup_time] => 0.029259
    [connect_time] => 0.159322
    [pretransfer_time] => 0.306638
    [size_upload] => 0
    [size_download] => 1710
    [speed_download] => 3783
    [speed_upload] => 0
    [download_content_length] => 1710
    [upload_content_length] => -1
    [starttransfer_time] => 0.452209
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 217.21.95.62
    [certinfo] => Array
        (
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    [primary_port] => 443
    [local_ip] => 78.47.42.177
    [local_port] => 50166
    [http_version] => 2
    [protocol] => 2
    [ssl_verifyresult] => 0
    [scheme] => HTTPS
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en-US">
  <head>
    
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />

<title>Page not found | Puppy For Sale in India</title>
<meta name="title" content="Page not found | Puppy For Sale in India" />
<meta name="keywords" content="classified, free classified, classified web, free listings, cars for sale, sale" />
<meta http-equiv="Cache-Control" content="no-cache" />
<meta http-equiv="Expires" content="Fri, Jan 01 1970 00:00:00 GMT" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<!-- favicon -->
<link rel="apple-touch-icon" sizes="180x180" href="https://puppysaleindia.com/oc-content/themes/sigma/favicon/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="https://puppysaleindia.com/oc-content/themes/sigma/favicon/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="https://puppysaleindia.com/oc-content/themes/sigma/favicon/favicon-16x16.png">
<!-- /favicon -->

<script type="text/javascript">
  var sigma = window.sigma || {};
  sigma.base_url = 'https://puppysaleindia.com/index.php';
  sigma.langs = {"delete":"Delete","cancel":"Cancel"};
  sigma.fancybox_prev = 'Previous image';
  sigma.fancybox_next = 'Next image';
  sigma.fancybox_closeBtn = 'Close';
  var jqueryVersion = '1';
</script>
<meta name="generator" content="Osclass 8.0.1" />
<meta name="robots" content="noindex, nofollow, noarchive" />
<meta name="googlebot" content="noindex, nofollow, noarchive" />
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css" rel="stylesheet" type="text/css" />
<link href="https://puppysaleindia.com/oc-includes/osclass/assets/js/fineuploader/fineuploader.css" rel="stylesheet" type="text/css" />
<link href="https://puppysaleindia.com/oc-content/themes/sigma/css/ajax-uploader.css" rel="stylesheet" type="text/css" />
<link href="https://fonts.googleapis.com/css2?family=EB+Garamond:wght@400&family=Nunito:wght@400;700&display=swap" rel="stylesheet" type="text/css" />
<link href="https://puppysaleindia.com/oc-content/themes/sigma/css/style.css?v=20220817001345" rel="stylesheet" type="text/css" />
<link href="https://puppysaleindia.com/oc-content/themes/sigma/css/responsive.css?v=20220817001345" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="https://puppysaleindia.com/oc-includes/osclass/assets/js/jquery.min.js"></script>
<script type="text/javascript" src="https://puppysaleindia.com/oc-includes/osclass/assets/js/fancybox/jquery.fancybox.pack.js"></script>
<script type="text/javascript" src="https://puppysaleindia.com/oc-includes/osclass/assets/js/date.js"></script>
<script type="text/javascript" src="https://puppysaleindia.com/oc-includes/osclass/assets/js/fineuploader/jquery.fineuploader.min.js"></script>
<script type="text/javascript" src="https://puppysaleindia.com/oc-includes/osclass/assets/js/jquery-ui.min.js"></script>
<script type="text/javascript" src="https://puppysaleindia.com/oc-content/themes/sigma/js/global.js?v=20220817001345"></script>
  </head>
<body class="error not-found">
<header>
  <div class="wrapper">
    <div class="box">
      <div id="logo">
        <a href="https://puppysaleindia.com/"><img border="0" alt="Puppy For Sale in India" src="https://puppysaleindia.com/oc-content/uploads/sigma_logo.png"></a>      </div>
      
      <div class="menu-icon isTablet isMobile">
        <div>
          <span class="l1"></span>
          <span class="l2"></span>
          <span class="l3"></span>
        </div>
      </div>
      
      <div class="nav">
    
        <a href="https://puppysaleindia.com/" class="isMobile">Home</a>
        <a class="isMobile" href="https://puppysaleindia.com/item/new">Publish Ad</a>
        <a href="https://puppysaleindia.com/contact" class="isMobile">Contact</a>

                              <a id="login_open" href="https://puppysaleindia.com/user/login">Login</a>

                          <a href="https://puppysaleindia.com/user/register">Register</a>
                              
                  <a class="publish isTablet isDesktop" href="https://puppysaleindia.com/item/new">Publish Ad</a>
              </div>
    </div>
  </div>
</header>




<section>
  
  
  <div class="wrapper wrapper-flash flash2"></div>

  
  <div class="wrapper" id="content">
        <div id="main">
      
<div class="flashmessage-404">
  <div class="error404">
    <h1>404</h1>
    <h2>OOPS! Page Not Found!</h2>
    <h3>Either something get wrong or the page doesn't exist anymore.</h3>

    <a href="https://puppysaleindia.com/" class="btn btn-secondary">Take me home</a>
  </div>
</div>
</div>
</div>
</section>


<footer>
  <div class="wrapper">
    <div class="box">
      <a href="https://puppysaleindia.com/contact">Contact</a>

      
      <div class="clear"></div>

      <div class="copy">Powered by <a title="Osclass classifieds script" href="https://osclass-classifieds.com">best classifieds scripts</a> osclass</div>
          </div>
  </div>

  <div id="footer-links" style="float:left;width:100%;clear:both;"></div></footer>

<link href="https://puppysaleindia.com/oc-includes/osclass/assets/css/jquery-ui/jquery-ui.css" rel="stylesheet" type="text/css" />

</body>
</html>

Fatal error: Uncaught Embed\Exceptions\InvalidUrlException: Invalid url 'https://puppysaleindia.com/user/profile/119092' (Status code 404) in /var/www/oscarotero.com/www/embed3/src/Embed.php:142 Stack trace: #0 /var/www/oscarotero.com/www/embed3/src/Embed.php(81): Embed\Embed::process() #1 /var/www/oscarotero.com/www/embed3/demo/index.php(216): Embed\Embed::create() #2 {main} thrown in /var/www/oscarotero.com/www/embed3/src/Embed.php on line 142