=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
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Cache-Control: no-cache, no-store, max-age=0, must-revalidate
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Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Wed, 01 Dec 2021 08:18:14 GMT
Location: http://groups.google.com/d/topic/analytics-help-troubleshoot/tZGYDSeV5kw
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Server: GSE
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HTTP/1.1 301 Moved Permanently
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Expires: Mon, 01 Jan 1990 00:00:00 GMT
Date: Wed, 01 Dec 2021 08:18:15 GMT
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HTTP/1.1 302 Found
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Cache-Control: no-cache, no-store, max-age=0, must-revalidate
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Date: Wed, 01 Dec 2021 08:18:16 GMT
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HTTP/1.1 302 Found
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Date: Wed, 01 Dec 2021 08:18:17 GMT
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Connection: close

HTTP/1.1 200 OK
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x-ua-compatible: IE=edge
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Date: Wed, 01 Dec 2021 08:18:17 GMT
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Connection: close

Request headers
================
HEAD /access-error?continue=https://groups.google.com/g/analytics-help-troubleshoot/c/tZGYDSeV5kw HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: groups.google.com
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.