=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Location: https://www.youtube.com/
Expires: Tue, 27 Apr 1971 19:44:06 EST
X-Content-Type-Options: nosniff
P3P: CP=&quot;This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info.&quot;
Cache-Control: no-cache
Content-Length: 0
Content-Type: text/html; charset=utf-8
Date: Sat, 13 Apr 2019 23:11:29 GMT
Server: YouTube Frontend Proxy
X-XSS-Protection: 0
Set-Cookie: VISITOR_INFO1_LIVE=LvquCFClsnE; path=/; domain=.youtube.com; expires=Thu, 10-Oct-2019 23:11:29 GMT; httponly
Set-Cookie: YSC=PLS629Fdjmo; path=/; domain=.youtube.com; httponly
Connection: close

HTTP/2 303 
content-type: text/html; charset=utf-8
location: https://www.youtube.com/supported_browsers?next_url=%2F
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
expires: Tue, 27 Apr 1971 19:44:06 EST
content-length: 0
p3p: CP=&quot;This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info.&quot;
cache-control: no-cache
date: Sat, 13 Apr 2019 23:11:29 GMT
server: YouTube Frontend Proxy
x-xss-protection: 0
set-cookie: YSC=K1m3RDcJRSY; path=/; domain=.youtube.com; httponly
set-cookie: VISITOR_INFO1_LIVE=7JTGuMyetwU; path=/; domain=.youtube.com; expires=Thu, 10-Oct-2019 23:11:29 GMT; httponly
alt-svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,44,43,39&quot;

HTTP/2 200 
content-type: text/html; charset=utf-8
cache-control: no-cache
expires: Tue, 27 Apr 1971 19:44:06 EST
x-frame-options: SAMEORIGIN
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
strict-transport-security: max-age=31536000
date: Sat, 13 Apr 2019 23:11:29 GMT
server: YouTube Frontend Proxy
x-xss-protection: 0
set-cookie: YSC=7F85kvXYcmU; path=/; domain=.youtube.com; httponly
set-cookie: hideBrowserUpgradeBox=True; path=/; domain=.youtube.com; expires=Sat, 27-Apr-2019 23:11:29 GMT
set-cookie: VISITOR_INFO1_LIVE=KWM_-RaGMPI; path=/; domain=.youtube.com; expires=Thu, 10-Oct-2019 23:11:29 GMT; httponly
set-cookie: GPS=1; path=/; domain=.youtube.com; expires=Sat, 13-Apr-2019 23:41:29 GMT
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.