FIND ADMIN PAGE OF WEBSITES USING BREACHER.
 An admin panel of website is like a management system used by its admins or editors to manage the website  like adding pages, images, changing website layout etc.

To access the admin panel you need these two things:
1. Credentials (username and password)
2. URL of the login page, for example www.example.com/admin.php

Now the most important question

Well there is no 100% working method for finding admin panels but all we can do is to try.
Lets start with exploiting human stupidity, I mean some stupid admins use URLs that are too common to guess like example.com/login, example.com/user_login, example.com/admin etc.
Checking these links manually is too time consuming so you can use this online admin finder which checks for 2500+ possible URLs.