=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Thu, 02 Dec 2021 03:15:34 GMT
Content-Type: text/html
Connection: close
Location: https://creativecommons.org/licenses/by/2.0/
Strict-Transport-Security: max-age=15768000
X-Content-Type-Options: nosniff
X-Frame-Options: deny
X-XSS-Protection: 1; mode=block
Cache-Control: max-age=1800
CF-Cache-Status: EXPIRED
Server: cloudflare
CF-RAY: 6b716437db322083-NRT

HTTP/1.1 200 OK
Date: Thu, 02 Dec 2021 03:15:34 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Cache-Control: public, max-age=1800
Strict-Transport-Security: max-age=15768000
X-Content-Type-Options: nosniff
X-Frame-Options: deny
X-XSS-Protection: 1; mode=block
CF-Cache-Status: HIT
Age: 274
Last-Modified: Thu, 02 Dec 2021 03:11:00 GMT
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 6b71643abf191eaf-NRT

Request headers
================
HEAD /licenses/by/2.0/ HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: creativecommons.org
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.