=== HTTP code : 404 ===

Response headers
================
HTTP/1.1 404 Not Found
Connection: close
Server: Cowboy
Date: Mon, 29 Jul 2019 00:25:13 GMT
Content-Length: 494
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache, no-store

Request headers
================
GET / HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: www.cat.ssdp.org
Accept: */*
Referer: https://ssdp.org
Connection: close
Range: bytes=0-2048

Response HTML
================
&lt;!DOCTYPE html&gt;
	&lt;html&gt;
	  &lt;head&gt;
		&lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1&quot;&gt;
		&lt;meta charset=&quot;utf-8&quot;&gt;
		&lt;title&gt;No such app&lt;/title&gt;
		&lt;style media=&quot;screen&quot;&gt;
		  html,body,iframe {
			margin: 0;
			padding: 0;
		  }
		  html,body {
			height: 100%;
			overflow: hidden;
		  }
		  iframe {
			width: 100%;
			height: 100%;
			border: 0;
		  }
		&lt;/style&gt;
	  &lt;/head&gt;
	  &lt;body&gt;
		&lt;iframe src=&quot;//www.herokucdn.com/error-pages/no-such-app.html&quot;&gt;&lt;/iframe&gt;
	  &lt;/body&gt;
	&lt;/html&gt;
Link is broken.