=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Server: Apache
Strict-Transport-Security: max-age=31536000
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Content-Security-Policy: default-src 'self'  *.apple.com;
X-Content-Type-Options: nosniff
Last-Modified: Tue, 02 Nov 2021 07:37:08 GMT
ETag: &quot;175-5cfc95c5b4897&quot;
Accept-Ranges: bytes
Content-Length: 373
X-Server: (null)
Content-Type: image/gif
Cache-Control: public, no-transform, max-age=3569
Date: Sun, 28 Nov 2021 10:16:59 GMT
Connection: close
X-Apple-Partner: origin.0

Request headers
================
HEAD /images/web/linkmaker/badge_appstore-sm.gif HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: ax.phobos.apple.com.edgesuite.net
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.