Plugins on the list:

Just another contact form plugin. Simple but flexible.

Categories: Forms

Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using the Yoast SEO plugin.

Categories: Seo

Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Page, Minify, Object, Fragment, Database support.

Categories: General

Protect your website investment with All-In-One Security (AIOS) – a comprehensive and easy to use security plugin designed especially for WordPress.

Categories: General

Automatically publishes blogposts to profiles/pages/groups on Twitter, Google+, Pinterest, LinkedIn, Blogger, Tumblr ... 22 more

Categories: General

Cloudflare

By Cloudflare, Inc.

All of Cloudflare’s performance and security benefits in a simple one-click install.

Categories: General

Level up your basic video embeds! Advanced features, privacy. Use URLs, Shortcodes or Blocks to customize videos to your needs.

Categories: General

A WordPress plugin to disable your website front-end and display a message to your visitors while still allowing back-end access.

Categories: General

Streamline your WordPress management with a powerful, self-hosted dashboard for updates, backups, security, cost tracking, and client management.

Categories: General