Плагин отнесен в категорию password protect

Очень простой способ быстро защитить ваш сайт WordPress одним паролем.

Choose a single password to protect your entire wordpress site from the public and search…

Password protect WordPress pages and posts by user roles or with multiple passwords; protect your…

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Easily password protect the child pages/posts of a post/page that is password protected.

A simple and lightweight password protection for WordPress.

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Easy way to require user login to view specific pages / posts.

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Allows you to protect all posts from chosen post type or types.

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Put a sitewide password on your site. Users must enter password before viewing content.

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Secure your wordpress site with a password. Useful for private blogs.

WordPress.org