=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Mon, 29 Jul 2019 01:45:25 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 0
Connection: close
Expires: Mon, 29 Jul 2019 01:22:21 GMT
Cache-Control: max-age=3600
X-Redirect-By: WordPress
Location: http://cornerproject.org/
Age: 4984
X-Cache: HIT

HTTP/1.1 200 OK
Server: nginx
Date: Mon, 29 Jul 2019 01:45:25 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Vary: Accept-Encoding
Link: &lt;http://cornerproject.org/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;, &lt;http://cornerproject.org/&gt;; rel=shortlink
Vary: Accept-Encoding
Age: 7990
X-Cache: HIT

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: cornerproject.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.