=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Jul 2019 00:43:53 GMT
Content-Type: text/html; charset=iso-8859-1
Connection: close
Set-Cookie: __cfduid=df7de2c4b2c03727762ae5edb1e5f4f641564361033; expires=Tue, 28-Jul-20 00:43:53 GMT; path=/; domain=.studentsforliberty.org; HttpOnly
Location: https://studentsforliberty.org/
Cache-Control: public, max-age=2592000
Expires: Wed, 28 Aug 2019 00:43:53 GMT
CF-Cache-Status: HIT
Age: 106561
Server: cloudflare
CF-RAY: 4fdb0fa8aa7acebc-IAD

HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Jul 2019 00:43:53 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Set-Cookie: __cfduid=d0886040c87e05374c799545e2ef675921564361033; expires=Tue, 28-Jul-20 00:43:53 GMT; path=/; domain=.studentsforliberty.org; HttpOnly
Expires: Tue, 06 Aug 2019 00:43:53 GMT
Cache-Control: public, max-age=691200
Pragma: no-cache
X-Pingback: https://www.studentsforliberty.org/xmlrpc.php
Location: https://www.studentsforliberty.org/
Vary: User-Agent
CF-Cache-Status: EXPIRED
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 4fdb0fa8ffcf56c1-IAD

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:43:53 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Set-Cookie: __cfduid=d2c3d457945c486809bdede68101195c81564361033; expires=Tue, 28-Jul-20 00:43:53 GMT; path=/; domain=.studentsforliberty.org; HttpOnly
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-Control: no-cache, must-revalidate, max-age=0
Pragma: no-cache
Link: &lt;https://www.studentsforliberty.org/&gt;; rel=shortlink
Vary: Accept-Encoding,User-Agent
CF-Cache-Status: MISS
Expect-CT: max-age=604800, report-uri=&quot;https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct&quot;
Server: cloudflare
CF-RAY: 4fdb0fab88279fbe-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.studentsforliberty.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.