=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Sat, 10 May 2025 00:37:05 GMT
Server: Apache
Upgrade: h2,h2c
Connection: Upgrade, close
Last-Modified: Mon, 19 Apr 2004 19:26:18 GMT
ETag: &quot;2b400-3d87089162a80&quot;
Accept-Ranges: bytes
Content-Length: 177152
Content-Type: application/pdf

Request headers
================
HEAD /~tom/classes/733/Biomass/Biomass%20for%20electricity%20generation.pdf HTTP/1.1
Host: www2.et.byu.edu
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.