I use Jetpack to speed up and protect my Wordpress websites. Many features are free, e.g. a downtime monitor and a brute force protection. I highly recommend Jetpack.

Muy buena funcionalidad y supervisión en la funcionalidades y publicación del sitio web admnistrado por wordpress.

The tool helps us to monitor website and troubleshot issues where we find that the website is unreachable

What I like the most about Jetpack is its free image CDN feature, I used it at one of my clients' website and the results were immediately noticeable. Also it has a built-in critical CSS generator for even more performance improvement.

Overall, I am very much happy with the services that I get for free from Jetpack.