Yes, SYSSY is free to use. It is available as a free plugin on WordPress.org.

How many websites use SYSSY?

SYSSY has 100 active installations as tracked by WordPress.org.

What are the best SYSSY alternatives?

Popular alternatives to SYSSY include Cornerstone, Automattic For Agencies Client, Better Plugin Compatibility Control. You can compare them side-by-side on our comparison pages.

Does SYSSY work with the latest WordPress?

SYSSY has been tested up to WordPress 7.0. It requires WordPress 5.4.0+ and PHP 7.4.0+.

PluginSift

SYSSY – Monitoring Websites

Name: SYSSY – Monitoring Websites
Rating: 5 (1 reviews)
Author: SYSSY

Connects your WordPress website with SYSSY for monitoring and security issue reporting. Requires account on https://www.syssy.net.

By SYSSY·Management·Free

5(1 reviews)

·100 active installs·Updated 1 week ago

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As of April 2026, SYSSY is a WordPress management plugin with 100 active installations and a 5/5 rating from 1 reviews. It has been downloaded 5.6K+ times in total. Requires WordPress 5.4.0+ and PHP 7.4.0+. Available on WordPress.org since 2021. Actively maintained — updated within the last month. Top alternative: Cornerstone.

5/51 reviews

100active installs

5.6K+total downloads

5 yearssince 2021

Overview

Connects your WordPress website with SYSSY for monitoring and security issue reporting. Requires account on https://www.syssy.net.

SYSSY is an online platform for managing and monitoring websites.

We provide plugins for connecting different CMS (content management systems) with SYSSY, so SYSSY receives data about your website and informs you if there are some problems or if you need to do any security updates in your system or on your server.

For connecting your WordPress website, just add your API key of your project from https://app.syssy.net and connect your website with SYSSY.
SYSSY calls your WordPress website via REST API and fetches your WordPress versions, a list of your installed plugins and their versions, PHP and MySQL version.
On SYSSY platform you can see a list with all your…

Read full description on WordPress.org