Clicky is web an analytics tool which helps you to get real-time analysis including spy view.
Header Footer Code Manager by Draftpress is a easy interface to add snippets to the header or footer or above or below the content of your page.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
Zakra is flexible, fast, lightweight and modern multipurpose WordPress theme that comes with many starter free sites.