Yes, Site-Sonar is free to use. It is available as a free plugin on WordPress.org.

How many websites use Site-Sonar?

Site-Sonar has 10 active installations as tracked by WordPress.org.

What are the best Site-Sonar alternatives?

Popular alternatives to Site-Sonar include WP Updates Notifier, APCu Manager, Health Endpoint. You can compare them side-by-side on our comparison pages.

Does Site-Sonar work with the latest WordPress?

Site-Sonar has been tested up to WordPress 3.2.1. It requires WordPress 2.9+ and PHP false+.

PluginSift

Site-Sonar

Name: Site-Sonar
Author: technalab

Real-Time Web Site Monitoring

By technalab·Monitor·Free

·10 active installs·Updated 14 years ago

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As of April 2026, Site-Sonar is a WordPress monitor plugin with 10 active installations and a 0/5 rating0. It has been downloaded 2.9K+ times in total. Requires WordPress 2.9+ and PHP false+. Available on WordPress.org since 2011. Last updated 14 years ago — may have compatibility concerns. Top alternative: WP Updates Notifier.

0/5Rating

10active installs

2.9K+total downloads

15 yearssince 2011

Overview

Plugin allows monitoring and sniffing users in real-time.
It is not alternative to Google Analytics but it can fill the gap of informations.

License

Plugin is free for everyone! Since it’s released under the GPL, you can use it free of charge on your personal or commercial blog.
Windows Client is also free of charge since is in ALFA or BETA state. After final release will be one-time small cost without any monthly costs like competitions have. People who help me test and brings some nice ideas for sure will obtain full license for free.

Read full description on WordPress.org