A very simple way to quickly password protect your WordPress site with a single password.
Choose a single password to protect your entire wordpress site from the public and search engines
This plugin password protects your WordPress blog with a single password.
Ultimate content restrictions and private page plugin for WordPress. Allows you to restrict content from guests as well as specific user roles.
Put a sitewide password on your site. Users must enter password before viewing content.
Easy way to require user login to view specific pages / posts.
WP Curtain is a simple plugin that allows you to hide your website from the general public and display an elegant countdown timer.