Yoast SEO is probably the most widely installed WordPress plugin in existence, and for many WordPress users it’s synonymous with SEO itself. It handles the technical foundations reliably: title tags and meta descriptions are easy to set, XML sitemaps are generated and submitted automatically, canonical tags are applied correctly, and breadcrumbs are available with a simple integration. For most websites, Yoast handles the on-page SEO infrastructure you’d otherwise have to configure manually.
The real-time content analysis is Yoast’s most distinctive feature. As you write, a panel in the editor scores your content on readability (using the Flesch reading ease score) and SEO factors like focus keyword usage, meta description length, and internal linking. The traffic light system, red, orange, and green bullets, gives immediate visual feedback that even non-technical content creators can act on.
I’ll be honest that Yoast’s analysis has become less central to serious SEO work over time. The keyword density recommendations feel dated compared to semantic tools like Surfer, and chasing all-green bullets doesn’t guarantee well-optimised content. But as a plugin for managing the technical foundations of on-page SEO, Yoast remains reliable and well-maintained. The free version covers everything most sites need. The premium tier at £99 per year adds redirect management, internal linking suggestions, and multiple focus keywords per page, which is useful for larger sites. It’s not the most exciting tool on this list, but it’s the dependable backbone that millions of WordPress sites run on.