=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Wed, 24 Nov 2021 09:17:53 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Server: nginx
Location: https://www.slideshare.net/sigeos15
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

HTTP/1.1 200 OK
Date: Wed, 24 Nov 2021 09:17:54 GMT
Content-Type: text/html; charset=utf-8
Connection: close
Server: nginx
Status: 200 OK
X-Request-UUID: jHKxWC8su6oWeRdXgVHHtA==
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Vary: User-Agent
X-ss-make-cacheable: true
X-Bench-Route: profile/index
X-XSS-Protection: 1; mode=block
X-UA-Compatible: IE=Edge,chrome=1
ETag: &quot;bfd7139c7c3fcff15e04fddc05d6cf19&quot;
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: language=**; path=/
Set-Cookie: flash=---%250Asig%253A%2Bb439a7b883a334fb5839b1b731e16316498c3695%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%255Cnused%253A%2B%2521ruby%252Fobject%253ASet%255Cn%2B%2Bhash%253A%2B%257B%257D%255Cn%2522%250A; path=/
X-Request-Id: 519175c098da3f026892d7c590911d79
X-Runtime: 0.205419
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

Request headers
================
HEAD /sigeos15 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.