=== HTTP code : 301 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Sat, 10 May 2025 05:17:30 GMT
Server: Apache/2.4.41 (Ubuntu)
Location: http://blogs.cornell.edu/curious/about-us/116-observational-astronomy/stargazing/professional-observers/712-how-does-light-pollution-affect-astronomers-intermediate
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 301 Moved Permanently
Server: openresty
Date: Sat, 10 May 2025 05:17:30 GMT
Content-Type: text/html
Content-Length: 166
Connection: close
Location: https://blogs.cornell.edu/curious/about-us/116-observational-astronomy/stargazing/professional-observers/712-how-does-light-pollution-affect-astronomers-intermediate
X-Cache-Bypass-Reason: 0

Request headers
================
HEAD /curious/about-us/116-observational-astronomy/stargazing/professional-observers/712-how-does-light-pollution-affect-astronomers-intermediate HTTP/1.1
Host: blogs.cornell.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.