Title: HeaderShield
Author: Vishwa
Published: <strong>20 maart 2026</strong>
Last modified: 20 maart 2026

---

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![](https://ps.w.org/headershield/assets/banner-772x250.png?rev=3487110)

![](https://ps.w.org/headershield/assets/icon.svg?rev=3487110)

# HeaderShield

 Door [Vishwa](https://profiles.wordpress.org/sbvi1122/)

[Download](https://downloads.wordpress.org/plugin/headershield.1.0.14.zip)

[Live voorbeeld](https://nl.wordpress.org/plugins/headershield/?preview=1)

 * [Details](https://nl.wordpress.org/plugins/headershield/#description)
 * [Beoordelingen](https://nl.wordpress.org/plugins/headershield/#reviews)
 *  [Installatie](https://nl.wordpress.org/plugins/headershield/#installation)
 * [Ontwikkeling](https://nl.wordpress.org/plugins/headershield/#developers)

 [Ondersteuning](https://wordpress.org/support/plugin/headershield/)

## Beschrijving

HeaderShield adds a conservative set of security headers that improve browser protection
without breaking most sites. It also provides optional strict cross-origin protections
for sites that are ready for them.

Default headers include:

 * X-Frame-Options
 * X-Content-Type-Options
 * X-XSS-Protection (legacy)
 * Referrer-Policy
 * Permissions-Policy
 * Content-Security-Policy (upgrade-insecure-requests)
 * Strict-Transport-Security (HTTPS only)

Strict Mode can additionally enable COEP, COOP, and CORP for stronger isolation,
but may break third‑party scripts or embeds. Use with care and test on staging first.

#### Source code for third-party assets

The admin UI uses SlimSelect for the multi-select dropdown. Human-readable source
is included in the plugin:

 * JavaScript: `assets/js/slimselect.js` (minified build: `assets/js/slimselect.
   min.js`)
 * CSS: `assets/css/slimselect.css` (minified build: `assets/css/slimselect.min.
   css`)

Upstream project: https://github.com/brianvoe/slim-select (MIT). This plugin does
not use a custom build process; the included files are from the published release.

## Installatie

 1. Upload the `headershield` plugin folder to `/wp-content/plugins/`, or install via**
    Plugins  Add New** and search for HeaderShield.
 2. Activate the plugin through the **Plugins** menu in WordPress.
 3. Go to **Security Headers** in the admin sidebar to configure settings.

#### Optional: use as must-use plugin

You can also copy the main plugin file into `/wp-content/mu-plugins/` so it is always
active and cannot be disabled from the Plugins screen.

## FAQ

### Will this break my site?

The default headers are conservative and should be safe for most sites. Strict Mode
may break embeds, analytics, fonts, or CDNs, so test on staging first.

### Does this affect SEO?

No. These headers improve browser security and do not affect SEO.

## Beoordelingen

Er zijn geen beoordelingen voor deze plugin.

## Bijdragers & ontwikkelaars

“HeaderShield” is open source software. De volgende personen hebben bijgedragen 
aan deze plugin.

Bijdragers

 *   [ Vishwa ](https://profiles.wordpress.org/sbvi1122/)
 *   [ vishvega ](https://profiles.wordpress.org/vishvega/)

[Vertaal “HeaderShield” in je eigen taal.](https://translate.wordpress.org/projects/wp-plugins/headershield)

### Interesse in ontwikkeling?

[Bekijk de code](https://plugins.trac.wordpress.org/browser/headershield/), haal
de [SVN repository](https://plugins.svn.wordpress.org/headershield/) op, of abonneer
je op het [ontwikkellog](https://plugins.trac.wordpress.org/log/headershield/) via
[RSS](https://plugins.trac.wordpress.org/log/headershield/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.14

 * Initial public release.

## Meta

 *  Versie **1.0.14**
 *  Laatst geüpdatet **4 maanden geleden**
 *  Actieve installaties **Minder dan 10**
 *  WordPress versie ** 5.0 of nieuwer **
 *  Getest t/m **6.9.5**
 *  PHP versie ** 7.4 of nieuwer **
 *  Taal
 * [English (US)](https://wordpress.org/plugins/headershield/)
 * Tags
 * [csp](https://nl.wordpress.org/plugins/tags/csp/)[hardening](https://nl.wordpress.org/plugins/tags/hardening/)
   [headers](https://nl.wordpress.org/plugins/tags/headers/)[hsts](https://nl.wordpress.org/plugins/tags/hsts/)
   [security](https://nl.wordpress.org/plugins/tags/security/)
 *  [Geavanceerde weergave](https://nl.wordpress.org/plugins/headershield/advanced/)

## Waarderingen

Er zijn nog geen beoordelingen ingediend.

[Your review](https://wordpress.org/support/plugin/headershield/reviews/#new-post)

[Bekijk alle beoordelingen](https://wordpress.org/support/plugin/headershield/reviews/)

## Bijdragers

 *   [ Vishwa ](https://profiles.wordpress.org/sbvi1122/)
 *   [ vishvega ](https://profiles.wordpress.org/vishvega/)

## Ondersteuning

Iets te melden? Hulp nodig?

 [Het supportforum bekijken](https://wordpress.org/support/plugin/headershield/)

## Doneren

Wil je de groei van deze plugin ondersteunen?

 [ Doneer aan deze plugin ](https://wordpress.org/support/plugin/headershield/)