Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
WP Rocket - WP Rocket offers a caching plugin for Wordpress.
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Wordfence - Comprehensive security plugin for WordPress.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.