=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Jul 2019 00:08:01 GMT
Connection: close
Cache-Control: max-age=3600
Expires: Mon, 29 Jul 2019 01:08:01 GMT
Location: https://www.opensocietyfoundations.org/
Server: cloudflare
CF-RAY: 4fdadb21ef31578d-IAD

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:08:01 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Set-Cookie: __cfduid=da0e532922df5b045161ca83ca7c0671a1564358881; expires=Tue, 28-Jul-20 00:08:01 GMT; path=/; domain=.opensocietyfoundations.org; HttpOnly
Vary: Accept-Encoding
Cache-Control: public, max-age=3600
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
CF-Cache-Status: HIT
Age: 7811
Expires: Mon, 29 Jul 2019 01:08:01 GMT
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 4fdadb223d92cedc-IAD

Request headers
================
HEAD / 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: www.opensocietyfoundations.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.