=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Sat, 27 Nov 2021 07:17:47 GMT
Server: ustream/web
server-timing: intid;desc=583815cabbdb3e0c
Location: https://video.ibm.com/
X-RSRC: sjc04-ustream-web14
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-BackendOrigin: www-web-bck/sjc04-ustream-web14
Age: 16
X-Domain: www.ustream.tv
X-Cache: HIT
X-Cache-Hits: 1
Connection: close
X-BackendOrigin: www.ustream.tv-bck/dal09-web-cache02

HTTP/1.1 200 OK
Date: Sat, 27 Nov 2021 07:18:04 GMT
Server: ustream/web
server-timing: intid;desc=1f0bd49c39042eb6
Set-Cookie: PHPSESSID=UstreamGuestSession; path=/; secure; HttpOnly
Expires: Sat, 27 Nov 2021 07:22:04 GMT
Cache-Control: public, max-age=0
Last-Modified: Sat, 27 Nov 2021 07:18:04 GMT
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
X-Framework-Lang: ja_JP
Set-Cookie: ustream-guest=JTvJPJ76EubQd%252FYwqFSIjwBM1vsRb14jbeJhi25GE0amdWpKPIBu0JG%252FV8ipR0iG4OC3w43q2WfP1OdcjBjwAMZHqTUatBf1Z726p6USbTHZhNC%252BPvVIa5AExGbk5S%252FQOIur3pGHBg6hdil0uKDTEsfTdHMKyu9uaerL7rsJN23yEO6wGWd2nTGnJgWPUuhEWoMLjkQVL3CyWs57%252FyidCB8ldBukDLkS78Cldm1luzaWA0YCRCtEn7fX; path=/; httponly
Vary: Accept-Encoding
X-RSRC: sjc03-ustream-web08
Content-Type: text/html; charset=UTF-8
X-BackendOrigin: www-web-bck/sjc03-ustream-web08
X-Cache-Lang: ja_JP
X-Country-Code: JP
X-RemoteIP: 133.242.181.143
X-Mobile-Vanity: 
X-Feature-ImgMedia: 
X-AB-Test1: 1
X-AB-Test2: 1
X-Cache: MISS
Accept-Ranges: bytes
Connection: close
X-BackendOrigin: www.ustream.tv-bck/dal09-web-cache02

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


Link is valid.