=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
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X-Robots-Tag: noarchive
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Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Mon, 29 Jul 2019 00:37:50 GMT
Content-Length: 1023773
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;
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Request headers
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HEAD /document/d/1mbMAvWl_c0DEFZlMi4SG41pimo04SBlg2AaiYTmxmmU/edit HTTP/1.1
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Host: docs.google.com
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Referer: https://ssdp.org
Connection: close


Link is valid.