=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
P3P: CP=&quot;ALL DSP NID CURa ADMa DEVa HISa OTPa OUR NOR NAV DEM&quot;
Content-Type: text/html; charset=UTF-8
X-Redirect-By: WordPress
Location: https://www.cssdp.org/
Date: Mon, 29 Jul 2019 01:46:55 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Connection: close

HTTP/1.1 301 Moved Permanently
P3P: CP=&quot;ALL DSP NID CURa ADMa DEVa HISa OTPa OUR NOR NAV DEM&quot;
Content-Type: text/html; charset=UTF-8
X-Redirect-By: WordPress
Location: https://cssdp.org/
Date: Mon, 29 Jul 2019 01:46:57 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Alt-Svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;35,39,43,44&quot;
Connection: close

HTTP/1.1 200 OK
P3P: CP=&quot;ALL DSP NID CURa ADMa DEVa HISa OTPa OUR NOR NAV DEM&quot;
Content-Type: text/html; charset=UTF-8
Link: &lt;https://cssdp.org/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;
Link: &lt;https://wp.me/P4rgwu-ur5&gt;; rel=shortlink
Date: Mon, 29 Jul 2019 01:46:58 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Alt-Svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;35,39,43,44&quot;
Connection: close

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


Link is valid.