Studio Be4

<p>Security Headers & Caching is a comprehensive WordPress plugin that helps protect your website by implementing essential HTTP security headers and optimizing performance through intelligent caching mechanisms. Compatible with all hosting providers including Aruba, SiteGround, Bluehost, and more.</p>
<h4>Key Features</h4>
<ul>
<li><strong>Easy Configuration</strong> – Simple admin interface to enable/disable security headers</li>
<li><strong>Multiple Security Headers</strong> – Comprehensive security header support</li>
<li><strong>Smart Caching</strong> – Configurable cache duration for better performance</li>
<li><strong>Universal Compatibility</strong> – Works with all hosting providers</li>
<li><strong>No Conflicts</strong> – Compatible with popular security and caching plugins</li>
<li><strong>Translation Ready</strong> – Full internationalization support</li>
</ul>
<h4>Security Headers Included</h4>
<ul>
<li><strong>X-Powered-By</strong> – Removes server technology information to prevent targeted attacks</li>
<li><strong>Content-Security-Policy (CSP)</strong> – Controls which resources can be loaded to prevent XSS attacks</li>
<li><strong>Strict-Transport-Security (HSTS)</strong> – Forces HTTPS connections for enhanced security</li>
<li><strong>X-XSS-Protection</strong> – Enables XSS filtering in older browsers</li>
<li><strong>X-Frame-Options</strong> – Prevents clickjacking attacks by controlling iframe embedding</li>
<li><strong>X-Content-Type-Options</strong> – Prevents MIME type sniffing</li>
<li><strong>Referrer-Policy</strong> – Controls how much referrer information is shared</li>
<li><strong>Permissions-Policy</strong> – Controls browser features and APIs</li>
</ul>
<h4>Caching Features</h4>
<ul>
<li>Configurable cache duration (seconds)</li>
<li>Automatic cache headers management</li>
<li>Compatible with CDN services</li>
<li>No conflict with existing cache plugins</li>
</ul>
<h4>Why Security Headers Matter</h4>
<p>Security headers are HTTP response headers that tell your browser how to behave when handling your website’s content. They help protect against:</p>
<ul>
<li>Cross-Site Scripting (XSS) attacks</li>
<li>Clickjacking attempts</li>
<li>Code injection attacks</li>
<li>MIME type sniffing</li>
<li>Protocol downgrade attacks</li>
<li>And much more…</li>
</ul>
<h4>Developer Friendly</h4>
<p>The plugin provides filters for developers to customize headers:</p>
<ul>
<li><code>shc_security_headers</code> – Filter to modify security headers array</li>
</ul>
<h4>Test Your Security</h4>
<p>After installing and configuring the plugin, test your site’s security at:<br />
* <a href="https://securityheaders.com/" rel="nofollow ugc">Security Headers</a><br />
* <a href="https://observatory.mozilla.org/" rel="nofollow ugc">Mozilla Observatory</a></p>
<h4>Privacy</h4>
<p>This plugin does not collect, store, or transmit any user data. It only modifies HTTP response headers sent by your server.</p>
<h3>Developer Documentation</h3>
<h4>Filters</h4>
<p><strong>shc_security_headers</strong></p>
<p>Modify the security headers before they are sent.</p>
<pre><code>add_filter( 'shc_security_headers', function( $headers ) {
    // Add custom header
    $headers['X-Custom-Header'] = 'custom-value';

    // Modify existing header
    $headers['X-Frame-Options'] = 'DENY';

    return $headers;
} );
</code></pre>
<h4>Constants</h4>
<ul>
<li><code>SHC_VERSION</code> – Plugin version number</li>
<li><code>SHC_PLUGIN_DIR</code> – Plugin directory path</li>
<li><code>SHC_PLUGIN_URL</code> – Plugin directory URL</li>
<li><code>SHC_PLUGIN_BASENAME</code> – Plugin basename</li>
</ul>
<h3>Support</h3>
<p>For support, feature requests, or bug reports, please visit:<br />
* <a href="https://www.studiobe4.it" rel="nofollow ugc">Plugin Website</a></p>
<h3>Credits</h3>
<p>Developed by <a href="https://www.studiobe4.it" rel="nofollow ugc">Studio Be4</a> – Web Design & Development Agency</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later.</p>


Security Headers & Caching

Enhance your WordPress site security with HTTP security headers and improve performance with smart caching. Works with all hosting providers.

Simon Waters

<p>TLS is growing in complexity. Server Name Indication (SNI) now means HTTPS sites may be on shared IP addresses, or otherwise restricted. For these servers it is handy to be able to set desired HTTP headers without access to the web servers configuration or using .htaccess file.</p>
<p>This plug-in exposes controls for:</p>
<ul>
<li>HSTS (Strict-Transport-Security)</li>
<li>HPKP (Public-Key-Pins)</li>
<li>Disabling content sniffing (X-Content-Type-Options)</li>
<li>XSS protection (X-XSS-Protection)</li>
<li>Clickjacking mitigation (X-Frame-Options in main site)</li>
<li>Expect-CT</li>
</ul>
<p>HSTS is used to ensure that future connections to a website always use TLS, and disallowing bypass of certificate warnings for the site.</p>
<p>HPKP is used if you don’t want to rely solely on the Certificate Authority trust model for certificate issuance.</p>
<p>Disabling content sniffing is mostly of interest for sites that allow users to upload files of specific types, but that browsers might be silly enough to interpret of some other type, thus allowing unexpected attacks.</p>
<p>XSS protection re-enables XSS protection for the site, if the user has disabled it previously, and sets the “block” option so that attacks are not silently ignored.</p>
<p>Clickjacking protection is usually only relevant when someone is logged in but users requested it, presumably they have rich content outside of WordPress authentication they wish to protect.</p>
<p>Expect-CT is used to ensure Certificate Transparency is configured correctly.</p>


Security Headers

Plug-in to ease the setting of TLS headers for HSTS and similar

Security Headers & Caching vs Security Headers