=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Server: nginx
Date: Sun, 11 Feb 2018 14:45:57 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Last-Modified: Sun, 11 Feb 2018 14:00:46 GMT
Set-Cookie: wpml_referer_url=https%3A%2F%2Fwww.essilor.com%2Fen%2F; expires=Mon, 12-Feb-2018 14:45:57 GMT; Max-Age=86400; path=/
Set-Cookie: _icl_current_language=en; expires=Mon, 12-Feb-2018 14:45:57 GMT; Max-Age=86400; path=/
Set-Cookie: PHPSESSID=94je31ttncfdilkjmljhton9c3; path=/; secure; HttpOnly
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: _icl_current_language=en; expires=Mon, 12-Feb-2018 14:45:57 GMT; Max-Age=86400; path=/
Link: &lt;https://www.essilor.com/en/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;
Link: &lt;https://www.essilor.com/en/&gt;; rel=shortlink
Strict-Transport-Security: max-age=31536000; includeSubDomains
Vary: Accept-Encoding,User-Agent
X-Front: ESS1
X-Frame-Options: sameorigin

Request headers
================
HEAD /en/ HTTP/1.1
Host: www.essilor.com
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: http://51.15.134.16
Connection: close


Link is valid.