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Best plugin SEO plugins for WordPress

The most popular plugin SEO plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Sky Seo leads with 10+ active installs, ahead of Google SERP Checker WP Plugin (10+) and WhoKnew Directory SEO (fewer than 10). All 4 plugins tagged “plugin seo” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 4 plugin SEO plugins

  1. 1.
    Sky Seo

    The most installed plugin SEO plugin, with 10+ active installs. No reviews yet, last updated 10 years ago. Tested only up to WordPress 4.4.34.

  2. 2.
    Google SERP Checker WP Plugin

    10+ active installs. No reviews yet, last updated 16 years ago. Tested only up to WordPress 2.5.1.

  3. 3.
    WhoKnew Directory SEO

    Fewer than 10 active installs. No reviews yet, updated 2 months ago.

  4. 4.
    PulseMetrics

    Fewer than 10 active installs. No reviews yet, updated 3 weeks ago.

All 4 plugins tagged “plugin seo”