=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: CloudFront
Date: Wed, 01 Dec 2021 03:16:35 GMT
Content-Type: text/html
Content-Length: 183
Connection: close
Location: https://www.nasa.gov/topics/aeronautics/index.html
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HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 13504
Connection: close
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Date: Wed, 01 Dec 2021 03:16:36 GMT
x-amz-replication-status: COMPLETED
Last-Modified: Tue, 30 Nov 2021 18:28:15 GMT
ETag: &quot;8462674ea0bd76fce599506210e2f134&quot;
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Request headers
================
HEAD /topics/aeronautics/index.html HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.nasa.gov
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.