10 Best Free Niche WordPress SEO Plugins in 2026

WordPress is an effective platform for getting your website indexed by search engines. And, while there are several well-known plugins to help optimize your site, there are many more under-the-radar options to choose from.
These plugins range in their focus. Some provide comprehensive SEO improvements, covering everything from keywords to helping boost site speed. Others focus on specific aspects, like making your site easier for artificial intelligence (AI) models to index. This diversity means