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

How many websites use Siteimprove?

Siteimprove has 700 active installations as tracked by WordPress.org.

What are the best Siteimprove alternatives?

Popular alternatives to Siteimprove include Yoast SEO – Advanced SEO with real-time…, LiteSpeed Cache, All in One SEO – Powerful SEO Plugin to…. You can compare them side-by-side on our comparison pages.

Does Siteimprove work with the latest WordPress?

Siteimprove has been tested up to WordPress 6.8.5. It requires WordPress 4.7.2+ and PHP false+.

Siteimprove — Reviews, Rating & Alternatives (2026)

Name: Siteimprove
Author: Siteimprove

As of April 2026, Siteimprove is a WordPress seo plugin with 700 active installations and a 0/5 rating0. It has been downloaded 103K+ times in total. Requires WordPress 4.7.2+ and PHP false+. Available on WordPress.org since 2017. Top alternative: Yoast SEO – Advanced SEO with real-time….

0/5Rating

700active installs

103K+total downloads

9 yearssince 2017

Overview

The Siteimprove CMS Plugin bridges the gap between the WordPress content management system (CMS) and the Siteimprove Intelligence Platform. Now you can scan your website for errors as soon as a page is published, allowing you to fix mistakes, optimize content, and manage your site more efficiently.
The plugin also provides you access to Prepublish, an add-on which allows you to check your page for issues before it has been published.

Read full description on WordPress.org