Use a dedicated email address for sending email using SSL/TLS, improve SMTP email delivery and log any errors.
Translate strings from themes and plugins right within the WordPress dashboard.
An endpoint firewall and malware scanner, including password protection and two-factor authentication.
Add CSS and JS snippets to your site, and activate them on demand with this syntax highlighting editor.
A very capable and possible overwhelming caching plugin with extra LiteSpeed server integration.
A form builder with a decent set of features in the free version, a modern interface, and an option to grow.
You can display pdf files as an animated flipbook with page turning sound effects :o
Filter out comment spam quietly and automatically while ensuring privacy.