=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx/1.12.2
Date: Sat, 04 Dec 2021 06:15:42 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
X-Powered-By: PHP/7.2.19
Set-Cookie: pll_language=en; expires=Sun, 04-Dec-2022 06:15:42 GMT; Max-Age=31536000; path=/; secure
Location: https://www.datadeck.com/en/

HTTP/1.1 200 OK
Server: nginx/1.12.2
Date: Sat, 04 Dec 2021 06:15:42 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
X-Powered-By: PHP/7.2.19
Set-Cookie: pll_language=en; expires=Sun, 04-Dec-2022 06:15:42 GMT; Max-Age=31536000; path=/; secure
Link: &lt;https://www.datadeck.com/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;
Link: &lt;https://www.datadeck.com/&gt;; rel=shortlink

Request headers
================
HEAD /en/ HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.datadeck.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.