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Result:

https://jennylennywed.com/
Array
(
    [date] => Fri, 29 Sep 2023 11:27:26 GMT
    [content-type] => text/html; charset=UTF-8
    [content-length] => 6844
    [connection] => keep-alive
    [report-to] => {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=eoYLcT8hbXRbblR6Xvpr9yUMiKQBqji0BQXGJ3xLtYwIiQe61H4c4V%2BN4%2FSlMpW8DopH%2Ff4DVSDEzwuc9Z0CNrmlVYfwfshpmXhMKy08PITmRsznWIsLVwFIhsxIcGeKwTw2mw%3D%3D"}],"group":"cf-nel","max_age":604800}
    [nel] => {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
    [x-frame-options] => SAMEORIGIN
    [referrer-policy] => same-origin
    [cache-control] => private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
    [expires] => Thu, 01 Jan 1970 00:00:01 GMT
    [server] => cloudflare
    [cf-ray] => 80e3e07bdf92360f-FRA
    [alt-svc] => h3=":443"; ma=86400
)

Array
(
    [url] => https://jennylennywed.com/
    [content_type] => text/html; charset=UTF-8
    [http_code] => 521
    [header_size] => 749
    [request_size] => 119
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.188472
    [namelookup_time] => 0.0285
    [connect_time] => 0.032579
    [pretransfer_time] => 0.066787
    [size_upload] => 0
    [size_download] => 6844
    [speed_download] => 36404
    [speed_upload] => 0
    [download_content_length] => 6844
    [upload_content_length] => -1
    [starttransfer_time] => 0.188119
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 188.114.97.3
    [certinfo] => Array
        (
        )

    [primary_port] => 443
    [local_ip] => 78.47.42.177
    [local_port] => 42518
    [http_version] => 2
    [protocol] => 2
    [ssl_verifyresult] => 0
    [scheme] => HTTPS
)

<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en-US"> <![endif]-->
<!--[if IE 7]>    <html class="no-js ie7 oldie" lang="en-US"> <![endif]-->
<!--[if IE 8]>    <html class="no-js ie8 oldie" lang="en-US"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en-US"> <!--<![endif]-->
<head>


<title>jennylennywed.com | 521: Web server is down</title>
<meta charset="UTF-8" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta name="robots" content="noindex, nofollow" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<link rel="stylesheet" id="cf_styles-css" href="/cdn-cgi/styles/main.css" />


</head>
<body>
<div id="cf-wrapper">
    <div id="cf-error-details" class="p-0">
        <header class="mx-auto pt-10 lg:pt-6 lg:px-8 w-240 lg:w-full mb-8">
            <h1 class="inline-block sm:block sm:mb-2 font-light text-60 lg:text-4xl text-black-dark leading-tight mr-2">
              <span class="inline-block">Web server is down</span>
              <span class="code-label">Error code 521</span>
            </h1>
            <div>
               Visit <a href="https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_521&utm_campaign=jennylennywed.com" target="_blank" rel="noopener noreferrer">cloudflare.com</a> for more information.
            </div>
            <div class="mt-3">2023-09-29 11:27:26 UTC</div>
        </header>
        <div class="my-8 bg-gradient-gray">
            <div class="w-240 lg:w-full mx-auto">
                <div class="clearfix md:px-8">
                  
<div id="cf-browser-status" class=" relative w-1/3 md:w-full py-15 md:p-0 md:py-8 md:text-left md:border-solid md:border-0 md:border-b md:border-gray-400 overflow-hidden float-left md:float-none text-center">
  <div class="relative mb-10 md:m-0">
    
    <span class="cf-icon-browser block md:hidden h-20 bg-center bg-no-repeat"></span>
    <span class="cf-icon-ok w-12 h-12 absolute left-1/2 md:left-auto md:right-0 md:top-0 -ml-6 -bottom-4"></span>
    
  </div>
  <span class="md:block w-full truncate">You</span>
  <h3 class="md:inline-block mt-3 md:mt-0 text-2xl text-gray-600 font-light leading-1.3">
    
    Browser
    
  </h3>
  <span class="leading-1.3 text-2xl text-green-success">Working</span>
</div>

<div id="cf-cloudflare-status" class=" relative w-1/3 md:w-full py-15 md:p-0 md:py-8 md:text-left md:border-solid md:border-0 md:border-b md:border-gray-400 overflow-hidden float-left md:float-none text-center">
  <div class="relative mb-10 md:m-0">
    <a href="https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_521&utm_campaign=jennylennywed.com" target="_blank" rel="noopener noreferrer">
    <span class="cf-icon-cloud block md:hidden h-20 bg-center bg-no-repeat"></span>
    <span class="cf-icon-ok w-12 h-12 absolute left-1/2 md:left-auto md:right-0 md:top-0 -ml-6 -bottom-4"></span>
    </a>
  </div>
  <span class="md:block w-full truncate">Frankfurt</span>
  <h3 class="md:inline-block mt-3 md:mt-0 text-2xl text-gray-600 font-light leading-1.3">
    <a href="https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_521&utm_campaign=jennylennywed.com" target="_blank" rel="noopener noreferrer">
    Cloudflare
    </a>
  </h3>
  <span class="leading-1.3 text-2xl text-green-success">Working</span>
</div>

<div id="cf-host-status" class="cf-error-source relative w-1/3 md:w-full py-15 md:p-0 md:py-8 md:text-left md:border-solid md:border-0 md:border-b md:border-gray-400 overflow-hidden float-left md:float-none text-center">
  <div class="relative mb-10 md:m-0">
    
    <span class="cf-icon-server block md:hidden h-20 bg-center bg-no-repeat"></span>
    <span class="cf-icon-error w-12 h-12 absolute left-1/2 md:left-auto md:right-0 md:top-0 -ml-6 -bottom-4"></span>
    
  </div>
  <span class="md:block w-full truncate">jennylennywed.com</span>
  <h3 class="md:inline-block mt-3 md:mt-0 text-2xl text-gray-600 font-light leading-1.3">
    
    Host
    
  </h3>
  <span class="leading-1.3 text-2xl text-red-error">Error</span>
</div>

                </div>
            </div>
        </div>

        <div class="w-240 lg:w-full mx-auto mb-8 lg:px-8">
            <div class="clearfix">
                <div class="w-1/2 md:w-full float-left pr-6 md:pb-10 md:pr-0 leading-relaxed">
                    <h2 class="text-3xl font-normal leading-1.3 mb-4">What happened?</h2>
                    <p>The web server is not returning a connection. As a result, the web page is not displaying.</p>
                </div>
                <div class="w-1/2 md:w-full float-left leading-relaxed">
                    <h2 class="text-3xl font-normal leading-1.3 mb-4">What can I do?</h2>
                          <h3 class="text-15 font-semibold mb-2">If you are a visitor of this website:</h3>
      <p class="mb-6">Please try again in a few minutes.</p>

      <h3 class="text-15 font-semibold mb-2">If you are the owner of this website:</h3>
      <p><span>Contact your hosting provider letting them know your web server is not responding.</span> <a rel="noopener noreferrer" href="https://support.cloudflare.com/hc/en-us/articles/200171916-Error-521">Additional troubleshooting information</a>.</p>
                </div>
            </div>
        </div>

        <div class="cf-error-footer cf-wrapper w-240 lg:w-full py-10 sm:py-4 sm:px-8 mx-auto text-center sm:text-left border-solid border-0 border-t border-gray-300">
  <p class="text-13">
    <span class="cf-footer-item sm:block sm:mb-1">Cloudflare Ray ID: <strong class="font-semibold">80e3e07bdf92360f</strong></span>
    <span class="cf-footer-separator sm:hidden">&bull;</span>
    <span id="cf-footer-item-ip" class="cf-footer-item hidden sm:block sm:mb-1">
      Your IP:
      <button type="button" id="cf-footer-ip-reveal" class="cf-footer-ip-reveal-btn">Click to reveal</button>
      <span class="hidden" id="cf-footer-ip">78.47.42.177</span>
      <span class="cf-footer-separator sm:hidden">&bull;</span>
    </span>
    <span class="cf-footer-item sm:block sm:mb-1"><span>Performance &amp; security by</span> <a rel="noopener noreferrer" href="https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_521&utm_campaign=jennylennywed.com" id="brand_link" target="_blank">Cloudflare</a></span>
    
  </p>
  <script>(function(){function d(){var b=a.getElementById("cf-footer-item-ip"),c=a.getElementById("cf-footer-ip-reveal");b&&"classList"in b&&(b.classList.remove("hidden"),c.addEventListener("click",function(){c.classList.add("hidden");a.getElementById("cf-footer-ip").classList.remove("hidden")}))}var a=document;document.addEventListener&&a.addEventListener("DOMContentLoaded",d)})();</script>
</div><!-- /.error-footer -->


    </div>
</div>
</body>
</html>

Fatal error: Uncaught Embed\Exceptions\InvalidUrlException: Invalid url 'https://jennylennywed.com/' (Status code 521) 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