=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: awselb/2.0
Date: Mon, 29 Jul 2019 00:58:57 GMT
Content-Type: text/html
Content-Length: 150
Connection: close
Location: https://issuu.com:443/search?q=colorado

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:58:58 GMT
Content-Type: text/html; charset=utf-8
Connection: close
X-Frame-Options: SAMEORIGIN
Set-Cookie: serpDisplayStyle=multi; Path=/; Expires=Thu, 29 Aug 2019 00:58:57 GMT
Content-Encoding: identity
X-Content-Type-Options: nosniff

Request headers
================
HEAD /search?q=colorado 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.