If you need to redirect visitors from a page that no longer exists to a new page or a different website, you can utilize the .htaccess file.
Redirect from a page or directory to another domain or the main domain:
Redirect from a specific page to a domain:
RewriteEngine on
Redirect 301 /mypage.html http://example.com
Redirect from one page to another page:
#Redirect from a page/directory to another page
Redirect 301 /oldpage.html /newpage.html
With this configuration, any visit to the URL example.com/oldpage.html will automatically redirect to example.com/newpage.html.