=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Fri, 26 Nov 2021 14:18:35 GMT
Server: Apache/2.2.15
X-Powered-By: PHP/5.3.3
Set-Cookie: dex=YToyOntzOjE6ImkiO2k6MDtzOjE6ImsiO047fQ%3D%3D; expires=Sun, 26-Dec-2021 14:18:35 GMT; path=/; domain=.gidnetwork.com
Connection: close
Content-Type: text/html

Request headers
================
HEAD /tools/gzip-test.php HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.gidnetwork.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.