=== HTTP code : 200 ===

Response headers
================
HTTP/2 200 
date: Mon, 15 Apr 2019 16:10:41 GMT
server: WebServer
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
strict-transport-security: max-age=31536000; includeSubDomains
x-li-ms-fabrics: p03
vary: Accept-Encoding
cache-control: max-age=0, no-cache
content-type: text/html; charset=UTF-8
x-li-fabric: prod-ltx1
x-li-pop: prod-vmi1
x-li-proto: http/2
x-li-uuid: RwM4DraxlRXgYWLlGSsAAA==

Request headers
================
HEAD /plugins HTTP/2
Host: developer.linkedin.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.