Title: Jeelsh HTTP Headers Author: jeelshy Published: July 31, 2026 Last modified: August 2, 2026 --- Search plugins ![](https://ps.w.org/jeelsh-http-headers/assets/icon-256x256.png?rev=3630539) # Jeelsh HTTP Headers By [jeelshy](https://profiles.wordpress.org/jeelshy/) [Download](https://downloads.wordpress.org/plugin/jeelsh-http-headers.1.0.2.zip) * [Details](https://wordpress.org/plugins/jeelsh-http-headers/#description) * [Reviews](https://wordpress.org/plugins/jeelsh-http-headers/#reviews) * [Installation](https://wordpress.org/plugins/jeelsh-http-headers/#installation) * [Development](https://wordpress.org/plugins/jeelsh-http-headers/#developers) [Support](https://wordpress.org/support/plugin/jeelsh-http-headers/) ## Description Jeelsh HTTP Headers gives you an easy-to-use interface inside your WordPress dashboard to set HTTP response headers that improve your site’s security and compliance. With this plugin you can configure: * Content-Security-Policy (CSP) headers * HTTP Strict Transport Security (HSTS) * Referrer-Policy * X-Frame-Options * Permissions-Policy * X-Content-Type-Options * X-Permitted-Cross-Domain-Policies * Your own custom headers All settings are validated and applied safely without touching your site’s core files. ### Features * Intuitive React-based admin panel * Predefined security headers with helpful descriptions * Custom header support * Settings validation before saving * Works out of the box with pre-built assets * No external service dependencies by default ### Requirements * WordPress 5.0 or higher * PHP 7.4 or higher ### External Services This plugin does not connect to any third-party service by default. The following items are documented for transparency: * CSP report-uri: If you configure a report-uri in the CSP settings, the browser will send CSP violation reports to the user-provided URL. The plugin does not provide or operate that endpoint; the site administrator chooses and controls it. By default the report-uri field is empty and no reports are sent. * Example domains in settings fields: Inputs such as https://example.com and https:// api.example.com use IANA-reserved example domains as placeholders only. The plugin does not connect to them. * GitHub documentation link: The admin sidebar includes a link to https://github. com/jeelsh/http-headers. It opens only when a user clicks it. GitHub is operated by GitHub, Inc.; for terms and privacy, see https://docs.github.com/en/site-policy/ github-terms/github-terms-of-service and https://docs.github.com/en/site-policy/ privacy-policies/github-privacy-statement. * Support email link: The admin sidebar includes a mailto:jeelsh@protonmail.com link. It opens the user’s email client; the plugin does not send any data. * WordPress REST API and admin-ajax: Saving and validating settings uses the site’s own WordPress REST API endpoints and admin-ajax.php. These are same-site, internal communications. ### Privacy Jeelsh HTTP Headers does not collect, store, or transmit any personal data on its own. All header configuration is stored in your WordPress database. The only optional external communication is a CSP report-uri that you, the site administrator, choose to configure. ### Support For help, documentation, and bug reports, visit the GitHub repository: https://github. com/jeelsh/http-headers For direct support, you can also email jeelsh@protonmail.com. ### Development The plugin’s user interface is built with React. The source code is available for review on GitHub: https://github.com/jeelsh/http-headers For build and development instructions, see `DEVELOPMENT.md`. ## Installation 1. Upload the plugin files to the `/wp-content/plugins/jeelsh-http-headers` directory, or install the plugin through the WordPress Plugins screen. 2. Activate the plugin through the Plugins screen in WordPress. 3. Open **Jeelsh HTTP Headers** from the WordPress administration menu to configure your headers. ## FAQ ### Is the plugin GPL-compatible? Yes. Jeelsh HTTP Headers is licensed under the GNU General Public License v2.0 or later. ### Does the plugin require a third-party service? No, not by default. Header configuration and validation run within your WordPress installation. For details on optional user-initiated connections, see the External Services section below. ### Can I add my own custom headers? Yes. The plugin includes a custom headers section where you can define additional HTTP headers. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Jeelsh HTTP Headers” is open source software. The following people have contributed to this plugin. Contributors * [ jeelshy ](https://profiles.wordpress.org/jeelshy/) [Translate “Jeelsh HTTP Headers” into your language.](https://translate.wordpress.org/projects/wp-plugins/jeelsh-http-headers) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/jeelsh-http-headers/), check out the [SVN repository](https://plugins.svn.wordpress.org/jeelsh-http-headers/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/jeelsh-http-headers/) by [RSS](https://plugins.trac.wordpress.org/log/jeelsh-http-headers/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.2 (2026-08-02) * Fixed header injection not applying on wp-admin and wp-login.php. * Added a check for Apache’s mod_headers before allowing the .htaccess injection method, with automatic fallback to PHP-based injection. * Fixed a 404 on bundled font assets caused by absolute asset URLs in the compiled CSS. * Finished the rebrand from “HTTP Headers Advanced” to “Jeelsh HTTP Headers” internal keys and translation files. * Admin panel visual adjustments and new UI components. #### 1.0.1 (2026-07-31) * Improved the admin panel display. * Improved plugin documentation. #### 1.0.0 (2026-07-31) * First release. * Configure Content-Security-Policy (CSP) headers to define which content sources the browser is allowed to load. * Configure HTTP Strict Transport Security (HSTS) to enforce HTTPS connections across the site. * Configure Referrer-Policy to control how much referrer information is shared with requests. * Configure X-Frame-Options to prevent clickjacking by restricting iframe embedding. * Configure Permissions-Policy to restrict which browser features can be used on the site. * Configure X-Content-Type-Options to prevent MIME-type sniffing by browsers. * Configure X-Permitted-Cross-Domain-Policies to manage cross-domain Adobe Flash/ Reader behavior. * Add custom HTTP headers to cover any additional site requirement. * Validate settings before saving to ensure headers are applied with correct and safe values. ## Meta * Version **1.0.2** * Last updated **1 day ago** * Active installations **Fewer than 10** * WordPress version ** 5.0 or higher ** * Tested up to **7.0.2** * PHP version ** 7.4 or higher ** * Tags * [csp](https://wordpress.org/plugins/tags/csp/)[hsts](https://wordpress.org/plugins/tags/hsts/) [http-headers](https://wordpress.org/plugins/tags/http-headers/)[Security Headers](https://wordpress.org/plugins/tags/security-headers/) [wordpress security](https://wordpress.org/plugins/tags/wordpress-security/) * [Advanced View](https://wordpress.org/plugins/jeelsh-http-headers/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/jeelsh-http-headers/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/jeelsh-http-headers/reviews/) ## Contributors * [ jeelshy ](https://profiles.wordpress.org/jeelshy/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/jeelsh-http-headers/)