=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Jul 2019 01:54:23 GMT
Server: Apache
X-Safe-Redirect-Manager: true
Location: https://docs.google.com/document/d/1mbMAvWl_c0DEFZlMi4SG41pimo04SBlg2AaiYTmxmmU/edit#heading=h.oktikabw8c67
Vary: Accept-Encoding
Connection: close
Content-Type: text/html; charset=UTF-8

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
X-Robots-Tag: noarchive
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 01:54:24 GMT
Content-Length: 967447
P3P: CP=&quot;This is not a P3P policy! See g.co/p3phelp for more info.&quot;
P3P: CP=&quot;This is not a P3P policy! See g.co/p3phelp for more info.&quot;
Strict-Transport-Security: max-age=31536000; includeSubDomains
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Server: GSE
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Connection: close

Request headers
================
HEAD /document/d/1mbMAvWl_c0DEFZlMi4SG41pimo04SBlg2AaiYTmxmmU/edit 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: docs.google.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.