=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 302 Moved Temporarily
Location: https://accounts.google.com/ServiceLogin?service=cl&amp;passive=1209600&amp;osid=1&amp;continue=https://calendar.google.com/calendar/render?hl%3Den&amp;followup=https://calendar.google.com/calendar&amp;hl=en&amp;scc=1
Content-Type: text/html; charset=UTF-8
Date: Mon, 29 Jul 2019 01:35:39 GMT
Expires: Mon, 29 Jul 2019 01:35:39 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
X-Frame-Options: DENY
x-auto-login: realm=com.google&amp;args=service%3Dcl%26continue%3Dhttps%253A%252F%252Fcalendar.google.com%252Fcalendar%252Frender%253Fhl%253Den
Link: &lt;https://www.google.com/intl/en/calendar/about/&gt;; rel=&quot;canonical&quot;
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 01:35:39 GMT
Content-Length: 1331335
Strict-Transport-Security: max-age=31536000; includeSubDomains
Content-Security-Policy: script-src 'report-sample' 'nonce-nAbGCEOdD1wRHx3ho3Bakg' 'unsafe-inline' 'unsafe-eval';object-src 'none';base-uri 'self';report-uri /cspreport
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Server: GSE
Set-Cookie: GAPS=1:B4hwv74QiLrOc6pNNQzkUn1kjcY8:3J_dMDSjldSmzlZ4;Path=/;Expires=Wed, 28-Jul-2021 01:35:39 GMT;Secure;HttpOnly;Priority=HIGH
Alt-Svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,43,39&quot;
Connection: close

Request headers
================
HEAD /ServiceLogin?service=cl&amp;passive=1209600&amp;osid=1&amp;continue=https://calendar.google.com/calendar/render?hl%3Den&amp;followup=https://calendar.google.com/calendar&amp;hl=en&amp;scc=1 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: accounts.google.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.