=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx/1.18.0 (Ubuntu)
Date: Tue, 30 Nov 2021 04:19:06 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://sendtodropbox.com/

HTTP/1.1 200 OK
Server: nginx/1.18.0 (Ubuntu)
Date: Tue, 30 Nov 2021 04:19:07 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 3867
Connection: close
X-Powered-By: Express
Set-Cookie: sendtodropbox=s%3Aj%3A%7B%7D.z6SEZfLhvAAED2Vac9a1aX4uZLr3l3wfJXpolaqAyEw; Path=/; HttpOnly

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


Link is valid.