I need help as sson as possible for OAuth Redirect URl

can anyone tell me what is OAuth Redirect URLs ?

The URL that hosts your POST handle to capture codes and turn them into access tokens if using “regular oAuth” or the URL that people are sent to with an access token when doing implicit auth.

Essentially it is the URL to a page on your website

I have pasted local system URL
for example = index.html page

Closing as a duplicate of