=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
P3P: CP=&quot;This is not a P3P policy! See g.co/p3phelp for more info.&quot;
Date: Wed, 01 Dec 2021 02:17:16 GMT
Server: gws
X-XSS-Protection: 0
X-Frame-Options: SAMEORIGIN
Transfer-Encoding: chunked
Expires: Wed, 01 Dec 2021 02:17:16 GMT
Cache-Control: private
Set-Cookie: 1P_JAR=2021-12-01-02; expires=Fri, 31-Dec-2021 02:17:16 GMT; path=/; domain=.google.com; Secure
Set-Cookie: NID=511=ni_VcFR_6CMnrUlRyalrQ0V5NfE6uxXCVy_B4-SOTJwQKe3CAfWkljpmoRvvRtadAnCOW8oPVChK14aC3geqXHQTjo1CXXHjWxeJ1JkfHvr9pH2eWzlTE41OY1u5fE7XxS51KJGNF5S-tVhm3qiARK9KCv2uXJM44Y-8ZK6zvV8; expires=Thu, 02-Jun-2022 02:17:16 GMT; path=/; domain=.google.com; HttpOnly
Connection: close

Request headers
================
HEAD /search?num=100&amp;hl=en&amp;safe=off&amp;q=link+exchange&amp;btnG=Google+Search HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.google.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.