Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
451 Unavailable For Legal Reasons - mrt.com
HTTP Status: 451
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Mon, 05 May 2025 18:41:11 GMT
Server: Apache/2.4.52 (Ubuntu)
Last-Modified: Wed, 04 Aug 2021 07:00:02 GMT
ETag: "11a5-5c8b659f7a482"
Accept-Ranges: bytes
Content-Length: 4517
Content-Type: text/html
GET / HTTP/1.1
Host: mrt.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
<html lang="en" class="no-js">
<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
	<title>Blocked for legal reasons</title>
	<meta name="description" content="Sorry, this content is not available in your region.">
	<meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1">
	<meta name="error" content="451">
	<link rel="shortcut icon"type="image/x-icon" href="data:image/x-icon;,">
	<style>
	html, body {
		border:  0;
		margin:  0;
		padding: 0;
	}
	body {
		background-color: white;
		min-width: 320px;
	}
	body * {
		font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
		font-size: 18px;
	}
	h1 {
		font-size: 32px;
		color: white;
		margin-bottom: 32px;
		color: black;
	}
	p {
		line-height: 1.38em;
		margin-bottom: 0.6em;
	}
	#content {
		width: 90%;
		max-width: 720px;
		margin: 15vh auto;
	}
	@media only screen and (max-width: 620px)  {
		#content {
			margin-top: 1em;
		}
		p {
			margin-top: auto;
		}
	}
	</style>
</head>
<body id="blocked">
	<section id="content">
 		<div class="wrap">
			<p style='color: #aaa'>451 Unavailable For Legal Reasons</p>
			<h1 style='font-size: 30px;'>Sorry, this content is not available in your region.</h1>
		<div>
	</section>
	<script>
	(function(){
		function updateIcon() {
			var icon = "\
			iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAMAAAD04JH5AAAAMFBMVEX////4+Pjy8vLs7Oz+/v7j4+PFxcW2\
			trarq6vU1NSVlZViYmInJycAAABMTEx4eHjR9HPUAAAAAXRSTlMAQObYZgAAA0BJREFUeNrtm8luwzAMRLXvlP//b9tjU9Qdy\
			0NXKJA5J3mKSJFaSPPWW/9Y1lrnP+WstX9PDzamlHL5VE41RRv+kB1r60O+afZWY3ge7tMx5FTjSP7JQfgyBWoW/5DPpS4X1Z\
			O+V7oyZEGjOF3TN1lWs3qTX+SWitIQ0pCbGsnw8l0Idc8avwipHCjrd6HVCU+ooqJ6l59FSZlc+7xauME/RFGHXeZPhse7op2\
			irGm5/89rhgV+lwfUr4/gkEd0XOUXeUhFM/6N3kqq0ftYU2l96MVEK1g9R2de5GLughU0FsBM/iRzZ/zdQDvAEcNvR4aDdQMH\
			5j6C7zcBcowBRsUJhDRCQjmNT2Dp118YYA3xfBn2ngWH00rg5VYImAt8JHtjAmbQ40tbn4BpFfh4ChrwG8RnpyDImbwGH6eE9\
			Oz6w7Fggn2EHl/mShYYQYWPM0IBBtDkS7mehibDx3EFW8ATfGwDvAY6yW8HWAdoKx45/mE8WFogEc/A8YMJ89LaOhtoIvnntv\
			XXDgOO5J97d72UiDrPN6bDhHT+qczyzyNcv+SDXoFv/BUvDGAfQPCNG3hXEiKYpnU+NO/LCctW4CjLfOzg1X79xQpy1jIf3zf\
			WlxlIIAwt83GaeXlVcSeDJPgwyGX38hoFMhHDN/Fn+3o8AK/CN54YAMXnBxApPjYBdkKKj50QL0OKj5chDkQUHwciHIopPg7F\
			OBkxfJyM8NXAcBp8C9Ix2JAQfLghwdNUKD7ekuFNKcfHm1K8Lef4cFuODyYkHx5M8NGM5IOjGT6cesPxTQSHUzRTR+P4poNDJ7\
			ygIPkeXFAAW9F8M69f/ZYn+HXhxtw9wA9j5eFm8nywtMDVW6L42AD4xKPN96vvl0WXb8fqo43V5c/1N5umwcdxpZ0PWo/v5p1H\
			K1PU/G/cez5249n1h98fEsvHJVAJuA7Pr4OpIHCI3wA+dvBQsL+AgS/hyFQJB1R4sojF7i7j2V3ItLuUa3sx2/5yvp0jmJapKN\
			5RXWx1i1rD7rLezYXNu0u7txe3EwqZL+/f3uCwv8Vjf5MLr9AI/P5Gp/2tXvub3fa3++k3PM7v6AEbHvVbPuuXl\
			k8XNje9vvXW/9UHuzaeTJktTdMAAAAASUVORK5CYII=";
			var link  = document.createElement('link');
			link.rel  = 'shortcut icon';
			link.type = 'image/x-icon';
			link.href = 'data:image/png;base64,' + icon;
			document.getElementsByTagName('head')[0].appendChild(link);
		}
		function recordVisit() {
		/*
			BadRequest Equivalent to HTTP status 400.
			BadRequest indicates that the request could not be understood by the server.
			BadRequest is sent when no other error is applicable, 
			or if the exact error is unknown or does not have its own error code.
		*/
			var errorCode = 400; 
			var errorEl = document.querySelector("meta[name='error']") || false;
			if (errorEl) {
				errorCode = errorEl.getAttribute('content') || errorCode;
			}
			errorCode = parseInt(errorCode, 10);

			var action;
			switch (errorCode) {
				case 403:
					action = 'invalid-browser';
					break;
				case 451:
					action = 'blocked';
					break;
				default:
					action = 'unknown';
			}
			console.log("Error", errorCode, action);

		/*
			Analytics Notes:
			We implement basic tracking to see understand the traffic this page gets.
			The user id generated here is random and meaningless and cannot be used to uniquely identify a visitor.
		*/
			var tid = 'UA-84860034-8';
			var cid  = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
				var r = Math.random() * 16|0;
				var v = c == 'x' ? r : (r&0x3|0x8);
				return v.toString(16);
			});

			var url = [
				'https://www.google-analytics.com/collect',
				'?v=1',
				'&t=event',
				'&tid=' + tid,
				'&cid=' + cid, 
				'&ec='  + "gdpr-visit",
				'&ea='  + action,
				'&el='  + errorCode,
				'&ev='  + "1",
				'&z='   + Date.now(),
				'&dp='  + location.href,
				'&dr='  + document.referrer
			].join("");
			new Image().src = url;
		}
		updateIcon();
		recordVisit();
	})();
	</script>
</body>
</html>
                               

Whois info of domain

Domain Name: MRT.COM
Registry Domain ID: 432922_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: http://cscdbs.com
Updated Date: 2024-10-27T05:12:22Z
Creation Date: 1994-11-01T05:00:00Z
Registry Expiry Date: 2025-10-31T04:00:00Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 8887802723
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: NS1.HEARSTNP.COM
Name Server: NS2.HEARSTNP.COM
Name Server: NS3.HEARSTNP.COM
Name Server: NS4.HEARSTNP.COM
Name Server: NS5.HEARSTNP.COM
Name Server: NS6.HEARSTNP.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-05T18:41:05Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
NOTICE: The expiration date displayed in this record is the date the
TERMS OF USE: You are not authorized to access or query our Whois
by the following terms of use: You agree that you may use this Data only
to: (1) allow, enable, or otherwise support the transmission of mass