=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 14 Apr 2019 03:08:57 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://akismet.com/

HTTP/2 200 
server: nginx
date: Sun, 14 Apr 2019 03:08:57 GMT
content-type: text/html; charset=utf-8
vary: Accept-Encoding
x-frame-options: DENY

Request headers
================
HEAD / HTTP/2
Host: akismet.com
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: https://itxdesign.com
Connection: close


Link is valid.