=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Sat, 10 May 2025 00:36:53 GMT
Server: Apache
Strict-Transport-Security: max-age=31536000
Last-Modified: Thu, 21 Jan 2016 15:36:26 GMT
ETag: &quot;13f324-529d9dd993280&quot;
Accept-Ranges: bytes
Content-Length: 1307428
Connection: close
Content-Type: application/pdf

Request headers
================
HEAD /sci/buildings/docs/factSheets/Insulation-FactSheet-2008.pdf HTTP/1.1
Host: web.ornl.gov
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.34 Safari/537.36
Accept: */*
Referer: https://greenmanual.rutgers.edu
Connection: close


Link is valid.