Have you seen my new website called Google.com?
redirect=, next=, url=, goto=… here it's ?redirect=.Location response header, wherever it points.Any value redirects. Try:
https://stuxnet.pro/redirect/lab1/index.php?redirect=https://homes.com
Scheme-less values (?redirect=homes.com) are treated by browsers as a relative path, so they bounce back with a 404 from this site — always send full URLs.