=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Thu, 25 Nov 2021 22:15:33 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 88
Cache-Control: no-cache
Location: https://www.olark.com/
Referrer-Policy: strict-origin-when-cross-origin
Set-Cookie: analytics_user_id=1d1c3145e1692f8c0e4148d43443bc7f; path=/; expires=Fri, 25-Nov-2022 22:15:33 GMT
Set-Cookie: _habla_sess=9e87ff17fbf646881cb86eac1e7cd883; path=/; expires=Sat, 27-Nov-2021 22:15:33 GMT; secure; HttpOnly
Status: 301
Vary: Accept-Encoding,User-Agent
X-Frame-Options: SAMEORIGIN
Via: 1.1 google
Alt-Svc: clear
Connection: close

HTTP/1.1 200 OK
Server: nginx
Date: Thu, 25 Nov 2021 22:15:34 GMT
Content-Type: text/html
Content-Length: 107950
Accept-Ranges: bytes
Etag: &quot;5611f1-1a5ae-5d1631aefc6f0&quot;
Last-Modified: Mon, 22 Nov 2021 16:27:47 GMT
Vary: Accept-Encoding,User-Agent
X-Frame-Options: SAMEORIGIN
Via: 1.1 google
Alt-Svc: clear
Connection: close

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


Link is valid.