=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: openresty
Date: Fri, 03 Dec 2021 01:16:30 GMT
Content-Type: text/html
Content-Length: 166
Connection: close
Location: https://www.flowchart.com/

HTTP/1.1 301 Moved Permanently
Server: openresty
Date: Fri, 03 Dec 2021 01:16:30 GMT
Content-Type: text/html
Content-Length: 166
Connection: close
Location: https://flowchart.com/
X-Frame-Options: SAMEORIGIN
X-Robots-Tag: noindex

HTTP/1.1 200 OK
Server: openresty
Date: Fri, 03 Dec 2021 01:16:31 GMT
Content-Type: text/html
Content-Length: 26854
Last-Modified: Thu, 02 Dec 2021 23:57:22 GMT
Connection: close
Vary: Accept-Encoding
ETag: &quot;61a95d62-68e6&quot;
X-Frame-Options: SAMEORIGIN
X-Robots-Tag: noindex
Accept-Ranges: bytes

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


Link is valid.