password protected site

And why do you think this is a WP-specific question? You should look around in your site’s admin panel and/or Google.

1. Try using a Registered Users Plugin. Only Registered Users of your site with a certain registration level can access the info.

2. Use a .htaccess file to restrict anyone without a username and password from accessing that part of your site.

You’ll find all the details by searching on this forum or using Google. ??

this plugin can help you..
https://wp-plugins.net/plugin/ac_authenticator.php/