=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Tue, 30 Nov 2021 02:15:36 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Server: nginx
Location: https://www.slideshare.net/login
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

HTTP/1.1 200 OK
Date: Tue, 30 Nov 2021 02:15:37 GMT
Content-Type: text/html; charset=utf-8
Connection: close
Server: nginx
Status: 200 OK
X-Request-UUID: 8gacopez1qYnE7TdSdM6Xg==
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Bench-Route: account/render_login_page
X-XSS-Protection: 1; mode=block
X-UA-Compatible: IE=Edge,chrome=1
ETag: &quot;c63c171b2cdf382b0bce1482f6057081&quot;
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: language=**; path=/
Set-Cookie: flash=---%250Asig%253A%2Bf75d2d894e6df29b4736be09aacf527794d4dce7%250Adata%253A%2B%2522---%255Cnvals%253A%255Cn%2B%2B%253Anotice%253A%2B%255Cn%2B%2B%253Awarning%253A%2B%255Cn%2B%2B%253Amessage%253A%2B%255Cn%2B%2B%253Asuccess%253A%2B%255Cn%2B%2B%253Aerror%253A%250A%2B%2B%255Cn%2B%2B%253Apermanent%253A%2B%255Cn%2B%2B%253Amodal_notice%253A%2B%255Cn%2B%2B%253Adwnldloop%253A%2B%255Cnused%253A%2B%2521ruby%252Fobject%253ASet%255Cn%2B%2Bhash%253A%250A%2B%2B%257B%257D%255Cn%2522%250A; path=/
Set-Cookie: _cookie_id=a8f06b939bc770f233acb8a77184bad3; domain=.slideshare.net; path=/; expires=Tue, 30-Nov-2021 02:45:37 GMT; HttpOnly
X-Request-Id: 5d3308fcd0004defd5732ab2ff91ea83
X-Runtime: 0.020411
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

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


Link is valid.