=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Content-Length: 43
Content-Type: image/gif
Date: Thu, 25 Nov 2021 00:20:19 GMT
Server: Apache
Connection: Close

Request headers
================
HEAD /0.gif?a8mat=1ZMYLT+EXMQ2I+D8Y+BWVTE HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www18.a8.net
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.