=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=UTF-8
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 29 Jul 2019 01:10:13 GMT
Location: http://groups.google.com/d/homeredir
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Accept-Ranges: none
Vary: Accept-Encoding
Connection: close

HTTP/1.1 302 Moved Temporarily
Content-Type: text/html; charset=UTF-8
Location: /forum/#!homeredir
Date: Mon, 29 Jul 2019 01:10:13 GMT
Expires: Mon, 29 Jul 2019 01:10:13 GMT
Cache-Control: private, max-age=0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Accept-Ranges: none
Vary: Accept-Encoding
Connection: close

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 29 Jul 2019 01:10:13 GMT
X-UA-Compatible: chrome=1
Content-Length: 231898
P3P: CP=&quot;This is not a P3P policy! See g.co/p3phelp for more info.&quot;
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Set-Cookie: NID=188=ikMMU7aMJP-7CExS1TcsXCKFkQoXYpdIGt3x0Nki4CIyPQGPm4V-AMWgGKrQtvCLteD0zRRoK4k4hGDxlCM45V503UabZ1zADV6AFlUvWrmtjAw_fdQoYMlFonuWT4Cy-Xwxj2QPwFC39FFv71UMwZVr17IGqQEZFFwaV6L5rAI; expires=Tue, 28-Jan-2020 01:10:13 GMT; path=/; domain=.google.com; HttpOnly
Connection: close

Request headers
================
HEAD /forum/ HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: groups.google.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.