=== HTTP code : 206 ===

Response headers
================
HTTP/2 301 
date: Sat, 10 May 2025 05:17:25 GMT
content-type: text/html; charset=UTF-8
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HTTP/1.1 206 Partial Content
Date: Sat, 10 May 2025 05:17:25 GMT
Last-Modified: Fri, 20 Sep 2013 20:54:25 GMT
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Host: docs.nrel.gov
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Link is valid.