=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
server: openresty/1.13.6.1
date: Thu, 25 Nov 2021 18:15:36 GMT
content-type: application/pdf
content-length: 0
connection: close

Request headers
================
HEAD /showfile-78/__23653;__27508;__26360;.pdf HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: pdfvia.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.