=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Content-Type: image/png
Content-Length: 48957
Connection: close
Date: Mon, 29 Nov 2021 00:19:00 GMT
Last-Modified: Sun, 06 May 2012 14:50:12 GMT
ETag: &quot;749968f48e25e8715d538f6d358a2879&quot;
Expires: Wed, 04 May 2022 14:50:11 +0000
Accept-Ranges: bytes
Server: AmazonS3
X-Cache: Miss from cloudfront
Via: 1.1 1dba622310b10f237c2fa77d70eb120f.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: NRT51-C2
X-Amz-Cf-Id: hnDj9IgB-usUNelOOOhq5gZR1CuyhbimFPwDEXoBE1uHa84D6tDjrQ==

Request headers
================
HEAD /images/2012/05/tracking-links3.png HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: d3qt5c962pj1kq.cloudfront.net
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.