=== HTTP code : 301 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx/1.18.0
Date: Sat, 27 Nov 2021 17:17:37 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://oga2.opengameart.org/gradient/

Request headers
================
HEAD /gradient/ HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: oga2.opengameart.org
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.