=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Location: http://www.gapminder.org/world/
Content-Type: text/html; charset=UTF-8
Content-Length: 213
Date: Mon, 29 Nov 2021 12:17:52 GMT
Expires: Mon, 29 Nov 2021 12:17:52 GMT
Cache-Control: private, max-age=0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Content-Security-Policy: frame-ancestors 'self'
X-XSS-Protection: 1; mode=block
Server: GSE
Connection: close

HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Nov 2021 12:17:53 GMT
Connection: close
Cache-Control: max-age=3600
Expires: Mon, 29 Nov 2021 13:17:53 GMT
Location: https://www.gapminder.org/world/
Server: cloudflare
CF-RAY: 6b5bc6835fed3541-NRT

HTTP/1.1 302 Moved Temporarily
Date: Mon, 29 Nov 2021 12:17:53 GMT
Content-Type: text/html
Connection: close
Location: https://www.gapminder.org/tools/?from=world
X-Frame-Options: sameorigin
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 6b5bc6845b3d1f37-NRT

HTTP/1.1 200 OK
Date: Mon, 29 Nov 2021 12:17:54 GMT
Content-Type: text/html
Connection: close
Vary: Accept-Encoding
Last-Modified: Tue, 23 Nov 2021 12:35:38 GMT
Vary: Accept-Encoding
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 6b5bc6889c8434cf-NRT

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


Link is valid.