=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Accept-Ranges: bytes
Content-Type: image/gif
Access-Control-Allow-Origin: *
Content-Length: 446
Date: Wed, 26 Jun 2019 15:36:26 GMT
Expires: Thu, 25 Jun 2020 15:36:26 GMT
Last-Modified: Thu, 21 Apr 2016 03:17:22 GMT
X-Content-Type-Options: nosniff
Server: sffe
X-XSS-Protection: 0
Cache-Control: public, max-age=31536000
Age: 2800615
Alt-Svc: quic=&quot;:443&quot;; ma=2592000; v=&quot;46,43,39&quot;
Connection: close

Request headers
================
HEAD /docs/spreadsheets/gadgets/smallLogo.gif 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: ssl.gstatic.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.