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Yoast SEO

WordPress SEO plugin with AI suggestions — real-time readability and meta optimization for 13M+ sites

Marketing / SEOFreemium

Yoast SEO is the world's most popular WordPress SEO plugin, active on over 13 million websites. It provides real-time feedback on content readability (Flesch-Kincaid, sentence length, passive voice), SEO analysis (keyword density, meta tag optimization, internal linking), XML sitemap generation, schema markup, and breadcrumb control — all within the WordPress editor. Yoast Premium adds AI-generated title and meta description suggestions, redirect management, and multiple keyword optimization.

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Key specs
13,000,000 Active WordPress installations source
as of 2026-03-27

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What we know

PricingFreemiumfrom our original listing, not yet re-checked

Why it matters

  • 13M+ active installations make it the de-facto standard WordPress SEO plugin — extensive documentation, community support, and agency familiarity.
  • Real-time traffic light feedback educates writers on SEO best practices during content creation rather than requiring a separate audit step.
  • XML sitemap auto-generation and schema markup implementation handle technical SEO foundation automatically — no developer required.
  • AI title/meta suggestions (Premium) accelerate meta tag optimization for content teams writing at volume.

Key capabilities

  • Focus keyword analysis: Real-time scoring of keyword usage, density, placement in headings/meta/URL.
  • Readability analysis: Flesch-Kincaid grade, sentence length, paragraph length, passive voice, transition words.
  • Meta tag management: Title tag and meta description editor with character count; AI suggestions in Premium.
  • XML sitemaps: Automatic sitemap generation; include/exclude post types and taxonomies.
  • Schema markup: Automatic structured data for pages, posts, products, breadcrumbs, organization.
  • Social meta: Open Graph and Twitter Card tags for all post types.
  • Breadcrumbs: Configurable breadcrumb schema and HTML breadcrumb template.
  • Redirect manager: (Premium) Manage 301/302 redirects; auto-redirect deleted posts.
  • Internal linking: (Premium) AI-powered related content and internal link suggestions.
  • Multiple keywords: (Premium) Optimize for several keyword variations per page.

Technical notes

  • Platform: WordPress plugin only
  • Free version: Core SEO analysis, sitemaps, schema, social meta
  • Premium: $99/year per site; includes AI, redirects, multi-keyword
  • WooCommerce SEO: Separate plugin add-on for product SEO
  • Active installs: 13M+ (WordPress.org stats)
  • Founded: 2010; Wijchen, Netherlands
  • Languages: Available in 30+ languages

Ideal for

  • WordPress site owners and content teams who want the most widely-supported SEO plugin with extensive documentation.
  • Writers without SEO expertise who benefit from real-time guidance and traffic-light feedback during content creation.
  • Agencies managing many WordPress client sites who need consistent, documented SEO processes across teams.

Not ideal for

  • Non-WordPress sites — Yoast is WordPress-only; use Semrush, Surfer SEO, or Clearscope for CMS-agnostic optimization.
  • Teams needing advanced keyword research or rank tracking — Yoast focuses on on-page optimization, not SERP research.
  • Sites wanting maximum free features — Rank Math's free tier includes features Yoast charges $99/year for.

See also

  • Surfer SEO — SERP-driven content optimization with NLP analysis; complements Yoast for deeper optimization.
  • SE Ranking — Full SEO platform with rank tracking and keyword research beyond on-page.
  • Clearscope — Enterprise content optimization with NLP grading; used alongside Yoast for large teams.

FAQ

What is Yoast SEO?

Yoast SEO is a WordPress plugin that provides real-time SEO and readability analysis as you write posts and pages. It scores your content with a red/yellow/green traffic light system: checking keyword usage, meta title/description length, content length, internal links, alt attributes, and readability (sentence/paragraph length, transition words, passive voice). It also manages XML sitemaps, schema markup, social media meta tags, and breadcrumb configuration automatically.

Is Yoast SEO free?

Yoast SEO has a powerful free version covering core SEO analysis, sitemaps, schema, and basic readability checks. Yoast Premium ($99/year per site) adds: AI-powered title and meta description generation, redirect manager (automatically redirect deleted posts), internal linking suggestions, multiple keyword optimization (not just one focus keyword), and 24/7 support. Yoast also offers subscription plans for multi-site use.

How does Yoast's AI feature work?

Yoast Premium includes AI-generated title tag and meta description suggestions. You provide your focus keyword and content, and Yoast's AI generates multiple variation suggestions for title tags and meta descriptions optimized for click-through rate. This feature uses OpenAI's GPT models under the hood. It's designed to give writers starting points rather than replace manual optimization — you review and edit the suggestions.

How does Yoast SEO compare to Rank Math?

Both are WordPress SEO plugins with similar core features. Rank Math offers more features for free (multiple focus keywords, advanced schema, 404 monitor, redirection) and has a more modern interface. Yoast is more established (founded 2010), has better support documentation, and is preferred by agencies who have used it for years. Rank Math is gaining market share with aggressive free tier; Yoast maintains dominance through trust and the largest SEO support community. Neither is strictly better — preference often comes down to familiarity.

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Listed 2026-02-22 · updated 2026-03-31