=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Server: nginx
Date: Mon, 16 Sep 2019 16:58:55 GMT
Content-Type: text/html
Content-Length: 37088
Connection: close
Last-Modified: Tue, 07 Feb 2017 14:06:22 GMT
ETag: &quot;90e0-547f140b888fc&quot;
Accept-Ranges: bytes
Cache-Control: max-age=15552000
Expires: Sat, 14 Mar 2020 16:58:55 GMT
alt-svc: quic=&quot;:443&quot;; ma=86400; v=&quot;43,39&quot;

Request headers
================
HEAD / 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.medcin.com.br
Accept: */*
Referer: http://centrotecnico.shinsei.com.br
Connection: close


Link is valid.