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Best security headers plugins for WordPress

The most popular security headers plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. HTTP Headers leads with 40K+ active installs, ahead of Content Security Policy Manager (2K+) and HTTP Security Header (1K+). All 36 plugins tagged “Security Headers” 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 10 security headers plugins

  1. 1.
    HTTP Headers

    The most installed security headers plugin, with 40K+ active installs. Rated 4.3 from 70 reviews, updated 3 weeks ago.

  2. 2.
    Content Security Policy Manager

    2K+ active installs. Rated 4.3 from 6 reviews, last updated 4 years ago. Tested only up to WordPress 6.1.16.

  3. 3.
    HTTP Security Header

    1K+ active installs. Only 3 reviews so far, updated 10 months ago. Tested only up to WordPress 6.9.11.

  4. 4.
    Security Headers

    800+ active installs. Only 2 reviews so far, updated 1 week ago. Tested only up to WordPress 6.9.11.

  5. 5.
    Security Header Generator

    400+ active installs. Rated 4.9 from 7 reviews, updated 1 month ago.

  6. 6.
    CSP Friendly Security

    200+ active installs. Only 4 reviews so far, updated 2 months ago.

  7. 7.
    Zen Site Security

    60+ active installs. Only 1 review so far, updated 1 month ago.

  8. 8.
    Small WP Security

    40+ active installs. Only 1 review so far, last updated 8 years ago. Tested only up to WordPress 4.9.35.

  9. 9.
    Improve Website Security

    40+ active installs. Only 1 review so far, updated 2 months ago.

  10. 10.
    WT Hardening

    20+ active installs. No reviews yet, updated 1 month ago.

All 36 plugins tagged “Security Headers”