=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: awselb/2.0
Date: Mon, 29 Jul 2019 00:08:02 GMT
Content-Type: text/html
Content-Length: 150
Connection: close
Location: https://issuu.com:443/the_amplify_project/docs/amplify_festival_safety_guide_summer_2013

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:08:02 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 81931
Connection: close
Set-Cookie: iutk=eea90040b19411e98363004973737575; Max-Age=315360; Domain=issuu.com; Path=/; Expires=Thu, 01 Aug 2019 15:44:02 GMT
ETag: W/&quot;1400b-EVKeP+nT8W0Eew490VSC5PBBTT0&quot;
X-Content-Type-Options: nosniff

Request headers
================
HEAD /the_amplify_project/docs/amplify_festival_safety_guide_summer_2013 HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: issuu.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.