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Result:

https://gutes-angebot.net/
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    [redirect_url] => 
    [primary_ip] => 188.114.96.3
    [certinfo] => Array
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    [primary_port] => 443
    [local_ip] => 78.47.42.177
    [local_port] => 47446
    [http_version] => 2
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<!DOCTYPE html>
<html lang="en-US">
<head>
    <title>Just a moment...</title>
    <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 href="/cdn-cgi/styles/challenges.css" rel="stylesheet">
    <meta http-equiv="refresh" content="35">

</head>
<body class="no-js">
    <div class="main-wrapper" role="main">
    <div class="main-content">
        <h1 class="zone-name-title h1">
            <img class="heading-favicon" src="/favicon.ico" alt="Icon for gutes-angebot.net"
                 onerror="this.onerror=null;this.parentNode.removeChild(this)">
            gutes-angebot.net
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        <h2 class="h2" id="challenge-running">
            Checking if the site connection is secure
        </h2>
        <noscript>
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                <div class="h2">
                    <span class="icon-wrapper">
                        <div class="heading-icon warning-icon"></div>
                    </span>
                    <span id="challenge-error-text">
                        Enable JavaScript and cookies to continue
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                </div>
            </div>
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        <div id="trk_jschal_js" style="display:none;background-image:url('/cdn-cgi/images/trace/jsch/nojs/transparent.gif?ray=791e7a033d0bc31d')"></div>
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                <div class="ray-id">Ray ID: <code>791e7a033d0bc31d</code></div>
            </div>
            <div class="text-center" id="footer-text">Performance &amp; security by <a rel="noopener noreferrer" href="https://www.cloudflare.com?utm_source=challenge&utm_campaign=j" target="_blank">Cloudflare</a></div>
        </div>
    </div>
</body>
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Fatal error: Uncaught Embed\Exceptions\InvalidUrlException: Invalid url 'https://gutes-angebot.net/' (Status code 503) 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