=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Content-Length: 0
Location: https://youtube.com/
Date: Mon, 15 Apr 2019 09:08:41 GMT
Content-Type: text/html
Server: YouTube Frontend Proxy
X-XSS-Protection: 0
Connection: close

HTTP/2 301 
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 0
location: https://www.youtube.com/
date: Mon, 15 Apr 2019 09:08:41 GMT
content-type: text/html
server: YouTube Frontend Proxy
x-xss-protection: 0
alt-svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,44,43,39&quot;

HTTP/2 303 
expires: Tue, 27 Apr 1971 19:44:06 EST
p3p: CP=&quot;This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info.&quot;
location: https://www.youtube.com/supported_browsers?next_url=%2F
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
content-length: 0
cache-control: no-cache
content-type: text/html; charset=utf-8
date: Mon, 15 Apr 2019 09:08:41 GMT
server: YouTube Frontend Proxy
x-xss-protection: 0
set-cookie: YSC=Cw-MZ3Dig0k; path=/; domain=.youtube.com; httponly
set-cookie: VISITOR_INFO1_LIVE=--vg02sbU_s; path=/; domain=.youtube.com; expires=Sat, 12-Oct-2019 09:08:41 GMT; httponly
alt-svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,44,43,39&quot;

HTTP/2 200 
p3p: CP=&quot;This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info.&quot;
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
strict-transport-security: max-age=31536000
content-type: text/html; charset=utf-8
cache-control: no-cache
expires: Tue, 27 Apr 1971 19:44:06 EST
date: Mon, 15 Apr 2019 09:08:41 GMT
server: YouTube Frontend Proxy
x-xss-protection: 0
set-cookie: YSC=sz2xA9l3kmY; path=/; domain=.youtube.com; httponly
set-cookie: hideBrowserUpgradeBox=True; path=/; domain=.youtube.com; expires=Mon, 29-Apr-2019 09:08:41 GMT
set-cookie: GPS=1; path=/; domain=.youtube.com; expires=Mon, 15-Apr-2019 09:38:41 GMT
set-cookie: VISITOR_INFO1_LIVE=qgD1Q4XyxRA; path=/; domain=.youtube.com; expires=Sat, 12-Oct-2019 09:08:41 GMT; httponly
alt-svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,44,43,39&quot;
accept-ranges: none
vary: Accept-Encoding

Request headers
================
HEAD /supported_browsers?next_url=%2F HTTP/2
Host: www.youtube.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.